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MetaExtensions: Difference between revisions

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'''To create an account, please ask someone in the #whatwg [[IRC]] channel on Freenode, or e-mail ian@hixie.ch. We had to disable open signups because the level of spam became intolerable.'''
This page lists extension values for the name="" attribute of the HTML <meta> element. You may add your own values to this list.


This page lists the allowed extension values for the name="" attribute of the <meta> element in HTML5. You may add your own values to this list, which makes them legal HTML5 metadata names. We ask that you try to avoid redundancy; if someone has already defined a name that does roughly what you want, please reuse it. Also, please be sure to include ''all'' the items [http://www.whatwg.org/specs/web-apps/current-work/multipage/semantics.html#other-metadata-names required by the spec] ''including a link to a specification'' that specifies the keyword ''as an HTML meta keyword''. Note that URL-valued properties must not be registered as meta names but should be registered as [http://microformats.org/wiki/existing-rel-values#HTML5_link_type_extensions rel keywords] instead. Also note that changes to this registry may not be reflected in validators in real time.
For assistance in preparing a specification, see the [[:Category:Specification editing|specification editing]] category and the [https://github.com/tabatkins/bikeshed/ Bikeshed] documentation.


== Registered Extensions ==
If the specification is ready, we ask that you:


{|border=1 cellpadding=4 cellspacing=0
* '''Avoid redundancy.''' If someone has already defined a name that does roughly what you want, please reuse it.
* '''Be sure to include ''all'' the items''' [http://www.whatwg.org/specs/web-apps/current-work/multipage/semantics.html#other-metadata-names outlined in the spec] ''including a link to a specification'' that specifies the keyword ''as an HTML meta keyword''.  If a proposal lacks a specification and a version in a complete specification exists, the latter is to be preferred.
* '''Alphabetize by keyword''', without regard for case, in any table. Sort nonalphanumerics by ASCII value.
* '''Not reserve namespaces.''' Instead, register individual names (known as enumerated values although you don't have to number them).
 
URL-valued attributes must not be added to this page as meta names but should be registered as [http://microformats.org/wiki/existing-rel-values#HTML5_link_type_extensions rel keywords] instead.
 
__TOC__
 
== Meta Name Extensions ==
 
{| class="wikitable sortable"
! Keyword
! Keyword
! Brief description
! Brief description
Line 13: Line 24:


|-valign="top"  
|-valign="top"  
| alexaverifyid
| AGLSTERMS.accessibility
| Used to verify ownership of Alexa Search
| A statement indicating the accessibility characteristics of the resource.
| [http://www.alexa.com/faqs/?p=188 Alexa FAQ About this meta attribute Reference]
| [http://www.agls.gov.au/pdf/AGLS%20Metadata%20Standard%20Part%202%20Usage%20Guide.PDF AGLS Metadata Usage Guide]
|  
|  
| Proposal
| Proposal


|-valign="top"  
|-valign="top"  
| apple-mobile-web-app-capable
| AGLSTERMS.accessMode
| Sets whether a web application runs in full-screen mode.
| Perceptual mode for the resource.  
| [http://developer.apple.com/library/safari/#documentation/appleapplications/reference/SafariHTMLRef/Articles/MetaTags.html Apple Safari HTML Reference]
| [http://www.agls.gov.au/pdf/AGLS%20Metadata%20Standard%20Part%202%20Usage%20Guide.PDF AGLS Metadata Usage Guide]
| Could maybe be assumed when <code>application-name</code> is set?
|  
| Proposal
| Proposal


|-valign="top"  
|-valign="top"  
| apple-mobile-web-app-status-bar-style
| AGLSTERMS.act
| Sets the style of the status bar for a web application.
| A specific piece of legislation which requires or drives the creation or provision of the resource.
| [http://developer.apple.com/library/safari/#documentation/appleapplications/reference/SafariHTMLRef/Articles/MetaTags.html Apple Safari HTML Reference]
| [http://www.agls.gov.au/pdf/AGLS%20Metadata%20Standard%20Part%202%20Usage%20Guide.PDF AGLS Metadata Usage Guide]
|  
|  
| Proposal
| Proposal


|-valign="top"  
|-valign="top"  
| baiduspider
| AGLSTERMS.aggregationLevel
| Synonym of <code>robots</code> for targeting Baidu only.
| The level of aggregation of the described resource - an 'item' or a 'collection'.
| [http://www.baidu.com/search/robots_english.html Baidu documentation]
| [http://www.agls.gov.au/pdf/AGLS%20Metadata%20Standard%20Part%202%20Usage%20Guide.PDF AGLS Metadata Usage Guide]
|  
|  
| Proposal
| Proposal


|-valign="top"  
|-valign="top"  
| csrf-param
| AGLSTERMS.allow-search
| Cross-site request forgery protection parameter for Ruby on Rails
| A specific piece of legislation which requires or drives the creation or provision of the resource.
| [http://apidock.com/rails/ActionView/Helpers/CsrfHelper/csrf_meta_tag Rails API]
| [http://www.agls.gov.au/pdf/AGLS%20Metadata%20Standard%20Part%202%20Usage%20Guide.PDF AGLS Metadata Usage Guide]
|  
|  
| Proposal
| Proposal


|-valign="top"  
|-valign="top"  
| csrf-token
| AGLSTERMS.availability
| Cross-site request forgery protection token for Ruby on Rails
| How the resource can be obtained or accessed, or contact information. Primarily used for offline resources to provide information on how to obtain physical access to the resource.
| [http://apidock.com/rails/ActionView/Helpers/CsrfHelper/csrf_meta_tag Rails API]
| [http://www.agls.gov.au/pdf/AGLS%20Metadata%20Standard%20Part%202%20Usage%20Guide.PDF AGLS Metadata Usage Guide]
|  
|  
| Proposal
| Proposal


|-valign="top"  
|-valign="top"  
| dc.date.issued
| AGLSTERMS.case
| Date of publication for Google News. The format of the content is YYYY-MM-DD or YYYY-MM-DDThh:mm:ssTZD.
| A specific piece of case law which requires or drives the creation or provision of the resource.
| [http://www.google.com/support/news_pub/bin/answer.py?answer=93994 Google News documentation]
| [http://www.agls.gov.au/pdf/AGLS%20Metadata%20Standard%20Part%202%20Usage%20Guide.PDF AGLS Metadata Usage Guide]
| <code>&lt;time pubdate&gt;</code>, <code>dcterms.issued</code>
|  
| Proposal
| Proposal


|-valign="top"
|-valign="top"  
| dc.language
| AGLSTERMS.category
| A language of the resource. Recommended best practice is to use a
| The generic type of the resource being described - a 'service', 'document' or 'agency'.
controlled vocabulary such as RFC 4646 [RFC4646].
| [http://www.agls.gov.au/pdf/AGLS%20Metadata%20Standard%20Part%202%20Usage%20Guide.PDF AGLS Metadata Usage Guide]
| [http://dublincore.org/documents/dcmi-terms/#terms-language DCMI
|  
Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
| Redundant with the <code>lang</code> attribute on the
<code>html</code> element. (Browsers pay attention to the <code>lang</code> attribute but not <code>dc.language</code>)
<code>dc.language</code> is preferred by several web validators over <code>dcterms.language</code>
| Proposal
| Proposal


|-valign="top"
|-valign="top"  
| dcterms.abstract
| AGLSTERMS.dateLicensed
| A summary of the resource.
| Date a license was applied or became effective.
| [http://dublincore.org/documents/dcmi-terms/#terms-abstract DCMI
| [http://www.agls.gov.au/pdf/AGLS%20Metadata%20Standard%20Part%202%20Usage%20Guide.PDF AGLS Metadata Usage Guide]
Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Proposal
| Proposal


|-valign="top"
|-valign="top"  
| dcterms.accessRights
| AGLSTERMS.documentType
| Information about who can access the resource or an indication of its security status.
| The form of the described resource where the value of category is‘document’. Document is used in its widest sense and includes resources such as text, images, sound files and software.
| [http://dublincore.org/documents/dcmi-terms/#terms-accessRights DCMI
| [http://www.agls.gov.au/pdf/AGLS%20Metadata%20Standard%20Part%202%20Usage%20Guide.PDF AGLS Metadata Usage Guide]
Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Proposal
| Proposal


|-valign="top"
|-valign="top"  
| dcterms.accrualMethod
| AGLSTERMS.function
| The method by which items are added to a collection.
| The business function to which the resource relates. Functions are the major units of activity which organisations pursue in order to meet the mission and goals of the organisation.
| [http://dublincore.org/documents/dcmi-terms/#terms-accrualMethod DCMI
| [http://www.agls.gov.au/pdf/AGLS%20Metadata%20Standard%20Part%202%20Usage%20Guide.PDF AGLS Metadata Usage Guide]
Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Proposal
| Proposal


|-valign="top"
|-valign="top"  
| dcterms.accrualPeriodicity
| AGLSTERMS.isBasedOn
| The frequency with which items are added to a collection.
| A related resource of which the described resource is a performance, production, derivation, translation or interpretation.
| [http://dublincore.org/documents/dcmi-terms/#terms-accrualPeriodicity DCMI
| [http://www.agls.gov.au/pdf/AGLS%20Metadata%20Standard%20Part%202%20Usage%20Guide.PDF AGLS Metadata Usage Guide]
Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Proposal
| Proposal


|-valign="top"
|-valign="top"  
| dcterms.accrualPolicy
| AGLSTERMS.isBasisFor
| The policy governing the addition of items to a collection.
| A related resource that is a performance, production, derivation, translation or interpretation of the described resource.
| [http://dublincore.org/documents/dcmi-terms/#terms-accrualPolicy DCMI
| [http://www.agls.gov.au/pdf/AGLS%20Metadata%20Standard%20Part%202%20Usage%20Guide.PDF AGLS Metadata Usage Guide]
Metadata Terms] mapped according to
|
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
| Proposal
 
|-valign="top"
| AGLSTERMS.jurisdiction
| The name of the political/administrative entity covered by the described resource.
| [http://www.agls.gov.au/pdf/AGLS%20Metadata%20Standard%20Part%202%20Usage%20Guide.PDF AGLS Metadata Usage Guide]
|  
|  
| Proposal
| Proposal


|-valign="top"
|-valign="top"  
| dcterms.alternative
| AGLSTERMS.mandate
| An alternative name for the resource.
| A specific legal instrument which requires or drives the creation or provision of the resource.
| [http://dublincore.org/documents/dcmi-terms/#terms-alternative DCMI
| [http://www.agls.gov.au/pdf/AGLS%20Metadata%20Standard%20Part%202%20Usage%20Guide.PDF AGLS Metadata Usage Guide]
Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Proposal
| Proposal


|-valign="top"
|-valign="top"  
| dcterms.audience
| AGLSTERMS.protectiveMarking
| A class of entity for whom the resource is intended or useful.
| A protective marking applied to the described resource.
| [http://dublincore.org/documents/dcmi-terms/#terms-audience DCMI
| [http://www.agls.gov.au/pdf/AGLS%20Metadata%20Standard%20Part%202%20Usage%20Guide.PDF AGLS Metadata Usage Guide]
Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Proposal
| Proposal


|-valign="top"
|-valign="top"  
| dcterms.available
| AGLSTERMS.regulation
| Date (often a range) that the resource became or will become available.
| A specific regulation which requires or drives the creation or provision of the resource.
| [http://dublincore.org/documents/dcmi-terms/#terms-available DCMI
| [http://www.agls.gov.au/pdf/AGLS%20Metadata%20Standard%20Part%202%20Usage%20Guide.PDF AGLS Metadata Usage Guide]
Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Proposal
| Proposal


|-valign="top"
|-valign="top"  
| dcterms.bibliographicCitation
| AGLSTERMS.serviceType
| A bibliographic reference for the resource.
| The form of the described resource where the value of category is ‘service'.
| [http://dublincore.org/documents/dcmi-terms/#terms-bibliographicCitation DCMI
| [http://www.agls.gov.au/pdf/AGLS%20Metadata%20Standard%20Part%202%20Usage%20Guide.PDF AGLS Metadata Usage Guide]
Metadata Terms] mapped according to
|  
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
| The HTML element <code>cite</code>
| Proposal
| Proposal


|-valign="top"
|-valign="top"  
| dcterms.conformsTo
| alexaverifyid
| An established standard to which the described resource conforms.
| Used to verify ownership of Alexa Search
| [http://dublincore.org/documents/dcmi-terms/#terms-conformsTo DCMI
| [http://www.alexa.com/faqs/?p=188 Alexa FAQ About this meta attribute Reference]
Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Proposal
| Proposal


|-valign="top"
|-valign="top"  
| dcterms.contributor
| apple-itunes-app
| An entity responsible for making contributions to the content of the resource.
| Promoting Apps with Smart App Banners
| [http://dublincore.org/documents/dcmi-terms/#terms-contributor DCMI
| [http://developer.apple.com/library/ios/#documentation/AppleApplications/Reference/SafariWebContent/PromotingAppswithAppBanners/PromotingAppswithAppBanners.html Safari Web Content Guide]
Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Proposal
| Proposal


|-valign="top"
|-valign="top"  
| dcterms.coverage
| apple-mobile-web-app-capable
| The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant.
| Sets whether a web application runs in full-screen mode.
| [http://dublincore.org/documents/dcmi-terms/#terms-coverage DCMI
| [http://developer.apple.com/library/safari/#documentation/appleapplications/reference/SafariHTMLRef/Articles/MetaTags.html Apple Safari HTML Reference]
Metadata Terms] mapped according to
| mobile-web-app-capable (also could maybe be assumed when <code>application-name</code> is set?)
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
| Proposal
 
|-valign="top"
| apple-mobile-web-app-status-bar-style
| Sets the style of the status bar for a web application.
| [http://developer.apple.com/library/safari/#documentation/appleapplications/reference/SafariHTMLRef/Articles/MetaTags.html Apple Safari HTML Reference]
|  
|  
| Proposal
| Proposal


|-valign="top"
|-valign="top"  
| dcterms.created
| apple-mobile-web-app-title
| Date of creation of the resource.
| Sets the title of the application when added to the homescreen on iOS6+
| [http://dublincore.org/documents/dcmi-terms/#terms-created DCMI
| [https://faq.frontendnet.work/metatags/Apple/apple-mobile-web-app-title Unofficial Documentation of apple-mobile-web-app-title] - Read more about Apple's web-app's at [https://developer.apple.com/library/safari/documentation/appleapplications/reference/SafariHTMLRef/Articles/MetaTags.html Apple Safari HTML Reference]
Metadata Terms] mapped according to
|
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
| Proposal
 
|-valign="top"
| apple-touch-fullscreen
| forces iPhone Fullscreen mode, if added to home screen. Not needed anymore.
| No specification yet
|  
|  
| Proposal
| Proposal


|-valign="top"
|-valign="top"  
| dcterms.creator
| application-name
| An entity primarily responsible for making the resource. Examples of
| For Windows 7: "[D]efines the name of the Pinned site application instance. This is the name that appears in a tooltip when hovering over the Pinned site button on the Windows 7 taskbar. The application name is also appended to the window title of the Pinned site application instance." Although the documentation refers to an application, it gives an example of writing this metadata for HTML. Indeed, this name must not be used except in a Web application, according to HTML Living Standard and HTML 5.1.
a Creator include a person, an organization, or a service.
| [https://msdn.microsoft.com/en-us/library/gg491732%28v=vs.85%29.aspx Declaring Pinned Site Metadata (Microsoft Developer Network)]
| [http://dublincore.org/documents/dcmi-terms/#terms-creator DCMI
|
Metadata Terms] mapped according to
| Proposed
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
| In some cases redundant with the HTML built-in keyword
| <code>author</code> Proposal


|-valign="top"
|-valign="top"
| dcterms.date
| application-url
| A point or period of time associated with an event in the lifecycle of the resource.
| '''Start URL of web apps in Google Chrome'''
| [http://dublincore.org/documents/dcmi-terms/#terms-date DCMI
The "application-url" meta tag can be used to specify the start URL of pinned web apps in Google Chrome.
Metadata Terms] mapped according to
<meta name="application-url" content="https://gmail.com/">
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
| [http://www.google.com/chrome/intl/en/webmasters-faq.html#customshortcuts Google Chrome Webmaster FAQ] [http://code.google.com/p/chromium/issues/detail?id=40010#c1 Chromium issue response]
|  
|  
| Proposal
| Proposal


|-valign="top"
|-valign="top"
| dcterms.dateAccepted
| appstore:bundle_id
| Date of acceptance of the resource.
| Application bundle identifier or package identifier, used to identify applications on platforms and within some app stores. Usage: <code><meta name="appstore:bundle_id" content="com.example.myapp"></code>
| [http://dublincore.org/documents/dcmi-terms/#terms-dateAccepted DCMI
| IAB Tech Lab app-ads.txt documentation: <nowiki>https://iabtechlab.com/ads-txt/</nowiki>
Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Proposal
| Proposal


|-valign="top"
|-valign="top"
| dcterms.dateCopyrighted
| appstore:developer_url
| Date of copyright.
| The consumer-visible URL published as developer contact details within an app store listing for an app. Usage: <code><meta name="appstore:developer_url" content="<nowiki>https://www.path.to/page</nowiki>"></code>
| [http://dublincore.org/documents/dcmi-terms/#terms-dateCopyrighted DCMI
| IAB Tech Lab app-ads.txt documentation: <nowiki>https://iabtechlab.com/ads-txt/</nowiki>
Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Proposal
| Proposal


|-valign="top"
|-valign="top"
| dcterms.dateSubmitted
| appstore:store_id
| Date of submission of the resource.
| An app store specific identifier representing the stock keeping unit (SKU) or another identifier used to locate the app within the store. Usage: <code><meta name="appstore:store_id" content="SKU12345"></code>
| [http://dublincore.org/documents/dcmi-terms/#terms-dateSubmitted DCMI
| IAB Tech Lab app-ads.txt documentation: <nowiki>https://iabtechlab.com/ads-txt/</nowiki>
Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Proposal
| Proposal


|-valign="top"
|-valign="top"  
| dcterms.description
| audience
| An account of the resource. Description may include but is not
| Categorize the principal intended audience for the page, generally with a controlled vocabulary.<br /><br />Google uses this tag: [https://support.google.com/customsearch/answer/2595557?hl=en Custom Search Help], as accessed Jan. 8, 2016.
limited to: an abstract, a table of contents, a graphical representation, or a free-text account of the resource.
| [http://brittlebit.org/specifications/html-meta-audience/specification-for-html-meta-element-with-name-value-audience.html BrittleBit.org spec]
| [http://dublincore.org/documents/dcmi-terms/#terms-description DCMI
|  
Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
| HTML built-in keyword <code>description</code>
| Proposal
| Proposal


|-valign="top"
|-valign="top"  
| dcterms.educationLevel
| bitcoin
| A class of entity, defined in terms of progression through an educational or training context, for which the described resource is intended.
| A bitcoin-address
| [http://dublincore.org/documents/dcmi-terms/#terms-educationLevel DCMI
| Short documentation (unofficial): [https://faq.frontendnet.work/metatags/Miscellaneous/bitcoin FrontendNetworks unofficial documentation for bitcoin-metatag], more informations about the Bitcoin-adress: [https://en.bitcoin.it/wiki/Address Bitcoin wiki]
Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Proposal
| Proposal


|-valign="top"
|-valign="top"  
| dcterms.extent
| blazerr-secure
| The size or duration of the resource.
| Decides whether connect via a secure connection or not to JokeNetwork's Blazerr-System. Synonym to blazerr-ssl, but only for old browsers such as Internet Explorer 7.<br>
| [http://dublincore.org/documents/dcmi-terms/#terms-extent DCMI
Usage: <code><meta name="blazerr-secure" content="yes"></code>
Metadata Terms] mapped according to
| [https://faq.frontendnet.work/metatags/Deprecated/Blazerr JokeNetwork's Blazerr Documentation]
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Proposal
| Proposal


|-valign="top"
|-valign="top"  
| dcterms.format
| blazerr-seo
| The file format, physical medium, or dimensions of the resource.
| Checks whether Blazerr SEO has been used or not. It contains the user-id and the SEO Version.<br>
| [http://dublincore.org/documents/dcmi-terms/#terms-format DCMI
Usage: <code><meta name="blazerr-seo" content="0001;v0.7"></code><br>0001 is an example for a user id, v0.7 identifies which version of SEO is used (In this case version Beta 7 / 0.7). If you're using Blazerr SEO, you have to include this meta-tag. Otherwise the tool will not work.
Metadata Terms] mapped according to
| [https://faq.frontendnet.work/metatags/Deprecated/Blazerr JokeNetwork's Blazerr Documentation]
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Proposal
| Proposal


|-valign="top"
|-valign="top"  
| dcterms.hasFormat
| blazerr-ssl
| A related resource that is substantially the same as the pre-existing described resource, but in another format.
| Decides whether connect via a secure connection or not to JokeNetwork's Blazerr-System. Similar to blazerr-secure.<br>
| [http://dublincore.org/documents/dcmi-terms/#terms-hasFormat DCMI
Usage: <code><meta name="blazerr-ssl" content="yes"></code>
Metadata Terms] mapped according to
| [https://faq.frontendnet.work/metatags/Deprecated/Blazerr JokeNetwork's Blazerr Documentation]
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
| blazerr-secure is partial synonym (see that entry)
| The HTML link type keyword "alternate" used with "link" element:<code>rel="alternate" type="URI of related resource"</code>
| Proposal
| Proposal


|-valign="top"
|-valign="top"  
| dcterms.hasPart
| blazerr-support-id-noncookies
| A related resource that is included either physically or logically in the described resource.
| Used to identify users for JokeNetwork's Blazerr Support-System without a cookie. Deprecated.
| [http://dublincore.org/documents/dcmi-terms/#terms-hasPart DCMI
| [https://faq.frontendnet.work/metatags/Deprecated/Blazerr JokeNetwork's Blazerr Documentation]
Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Proposal
|-valign="top"
| dcterms.hasVersion
| A related resource that is a version, edition, or adaptation of the described resource.
| [http://dublincore.org/documents/dcmi-terms/#terms-hasVersion DCMI
Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
| The HTML link type keyword "alternate" used with "link" element:<code>rel="alternate" type="URI of related resource"</code>
| Proposal
| Proposal


|-valign="top"
|-valign="top"  
| dcterms.identifier
| blazerr-support-identifier
| An unambiguous reference to the resource within a given context.
| Used to identify users for JokeNetwork's Blazerr Support-System along with a cookie. The verification of a user without the use of cookies can be obtained with the deprecated meta tag [https://faq.frontendnet.work/metatags/Deprecated/Blazerr blazerr-support-id-noncookies].
| [http://dublincore.org/documents/dcmi-terms/#terms-identifier DCMI
| [https://faq.frontendnet.work/metatags/Deprecated/Blazerr JokeNetwork's Blazerr Documentation]
Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Proposal
| Proposal


|-valign="top"
|-valign="top"  
| dcterms.instructionalMethod
| bug.blocked
| A process used to engender knowledge, attitudes and skills, that the described resource is designed to support.
| Bugzilla dependency tree to which the https://dvcs.w3.org/hg/webcomponents/raw-file/default/assets/scripts/bug-assist.js bug-creation script will add a link.
| [http://dublincore.org/documents/dcmi-terms/#terms-instructionalMethod DCMI
| [https://dvcs.w3.org/hg/webcomponents/raw-file/default/assets/scripts/bug-assist.js Embedded documentation]
Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Proposal
| Proposal


|-valign="top"
|-valign="top"  
| dcterms.isFormatOf
| bug.comment
| A related resource that is substantially the same as the described resource, but in another format.
| Bugzilla comment used by the https://dvcs.w3.org/hg/webcomponents/raw-file/default/assets/scripts/bug-assist.js bug-creation script.
| [http://dublincore.org/documents/dcmi-terms/#terms-isFormatOf DCMI
| [https://dvcs.w3.org/hg/webcomponents/raw-file/default/assets/scripts/bug-assist.js Embedded documentation]
Metadata Terms] mapped according to
|  
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
| The HTML link type keyword "alternate" used with "link" element:<code>rel="alternate" type="URI of related resource"</code>
| Proposal
| Proposal


|-valign="top"
|-valign="top"  
| dcterms.isPartOf
| bug.component
| A related resource in which the described resource is physically or logically included.
| Bugzilla component against which the https://dvcs.w3.org/hg/webcomponents/raw-file/default/assets/scripts/bug-assist.js bug-creation script will create a new bug.
| [http://dublincore.org/documents/dcmi-terms/#terms-isPartOf DCMI
| [https://dvcs.w3.org/hg/webcomponents/raw-file/default/assets/scripts/bug-assist.js Embedded documentation]
Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Proposal
| Proposal


|-valign="top"
|-valign="top"  
| dcterms.isReferencedBy
| bug.product
| A related resource that references, cites, or otherwise points to the described resource.
| Bugzilla product against which the https://dvcs.w3.org/hg/webcomponents/raw-file/default/assets/scripts/bug-assist.js bug-creation script will create a new bug.
| [http://dublincore.org/documents/dcmi-terms/#terms-isReferencedBy DCMI
| [https://dvcs.w3.org/hg/webcomponents/raw-file/default/assets/scripts/bug-assist.js Embedded documentation]
Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Proposal
| Proposal


|-valign="top"
|-valign="top"  
| dcterms.isReplacedBy
| bug.short_desc
| A related resource that supplants, displaces, or supersedes the described resource.
| Bugzilla short description used by the https://dvcs.w3.org/hg/webcomponents/raw-file/default/assets/scripts/bug-assist.js bug-creation script.
| [http://dublincore.org/documents/dcmi-terms/#terms-isReplacedBy DCMI
| [https://dvcs.w3.org/hg/webcomponents/raw-file/default/assets/scripts/bug-assist.js Embedded documentation]
Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Proposal
| Proposal


|-valign="top"
|-valign="top"  
| dcterms.isRequiredBy
| cfia.gdr.activity
| A related resource that requires the described resource to support its function, delivery, or coherence.
| Canadian Food Inspection Agency Guidance Document Repository Page Activity
| [http://dublincore.org/documents/dcmi-terms/#terms-isRequiredBy DCMI
| Coming soon at [http://www.inspection.gc.ca CFIA website]
Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Proposal
| Proposal


|-valign="top"
|-valign="top"  
| dcterms.issued
| cfia.gdr.commodity
| Date of formal issuance (e.g., publication) of the resource. (DC
| Canadian Food Inspection Agency Guidance Document Repository Page Commodity
doesn't spec a date format but the established practice is
| Coming soon at [http://www.inspection.gc.ca CFIA website]
YYYY-MM-DD.)
|  
| [http://dublincore.org/documents/dcmi-terms/#terms-issued DCMI
Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
| <code>&lt;time pubdate&gt;</code>
| Proposal
| Proposal


|-valign="top"
|-valign="top"  
| dcterms.isVersionOf
| cfia.gdr.include
| A related resource of which the described resource is a version, edition, or adaptation.
| Canadian Food Inspection Agency Guidance Document Repository Page
| [http://dublincore.org/documents/dcmi-terms/#terms-isVersionOf DCMI
| Coming soon at [http://www.inspection.gc.ca CFIA website]
Metadata Terms] mapped according to
|  
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
| The HTML link type keyword "alternate" used with "link" element:<code>rel="alternate" type="URI of related resource"</code>
| Proposal
| Proposal


|-valign="top"
|-valign="top"  
| dcterms.language
| cfia.gdr.program
| A language of the resource. Recommended best practice is to use a
| Canadian Food Inspection Agency Guidance Document Repository Page Program
controlled vocabulary such as RFC 4646 [RFC4646].
| Coming soon at [http://www.inspection.gc.ca CFIA website]
| [http://dublincore.org/documents/dcmi-terms/#terms-language DCMI
|  
Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
| Redundant with the <code>lang</code> attribute on the
<code>html</code> element. (Browsers pay attention to the <code>lang</code> attribute but not <code>dcterms.language</code>)
| Proposal
| Proposal


|-valign="top"
|-valign="top"  
| dcterms.license
| citation_author
| A legal document giving official permission to do something with the resource.
| The name of an author of an academic paper
| [http://dublincore.org/documents/dcmi-terms/#terms-license DCMI
| [https://www.google.com/intl/en/scholar/inclusion.html#indexing Google Scholar indexing documentation]
Metadata Terms] mapped according to
|  
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
| The HTML element <code>license</code>
| Proposal
| Proposal


|-valign="top"
|-valign="top"  
| dcterms.mediator
| citation_author_email
| An entity that mediates access to the resource and for whom the resource is intended or useful.
| The email address of the preceding author (identified using citation_author) of an academic paper
| [http://dublincore.org/documents/dcmi-terms/#terms-mediator DCMI
|  
Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Proposal
| Proposal


|-valign="top"
|-valign="top"  
| dcterms.medium
| citation_author_institution
| The material or physical carrier of the resource.
| The name of an institution to which the preceding author (identified using citation_author) of an academic paper is affiliated
| [http://dublincore.org/documents/dcmi-terms/#terms-medium DCMI
|  
Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Proposal
| Proposal


|-valign="top"
|-valign="top"  
| dcterms.modified
| citation_conference_title
| Date on which the resource was changed. (DC doesn't spec a date
| The title of the conference at which an academic paper is published
format but the established practice is YYYY-MM-DD.)
| [https://www.google.com/intl/en/scholar/inclusion.html#indexing Google Scholar indexing documentation]
| [http://dublincore.org/documents/dcmi-terms/#terms-modified DCMI
|  
Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|
| Proposal
| Proposal


|-valign="top"
|-valign="top"  
| dcterms.provenance
| citation_date
| A statement for any changes in ownership and custody of the resource since its creation that are significant for its authenticity, integrity, and interpretation.
| The publication date of an academic paper
| [http://dublincore.org/documents/dcmi-terms/#terms-provenance DCMI
|  
Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Proposal
| Proposal


|-valign="top"
|-valign="top"  
| dcterms.publisher
| citation_dissertation_institution
| An entity responsible for making the resource available.
| The name of the institution which published an academic dissertation
| [http://dublincore.org/documents/dcmi-terms/#terms-publisher DCMI
| [https://www.google.com/intl/en/scholar/inclusion.html#indexing Google Scholar indexing documentation]
Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Proposal
| Proposal


|-valign="top"
|-valign="top"  
| dcterms.references
| citation_doi
| A related resource that is referenced, cited, or otherwise pointed to by the described resource.
| The Digital Object Identifier of an academic paper
| [http://dublincore.org/documents/dcmi-terms/#terms-references DCMI
|  
Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Proposal
| Proposal


|-valign="top"
|-valign="top"  
| dcterms.relation
| citation_firstpage
| A related resource.
| The first page of the journal in which an academic paper is published
| [http://dublincore.org/documents/dcmi-terms/#terms-relation DCMI
| [https://www.google.com/intl/en/scholar/inclusion.html#indexing Google Scholar indexing documentation]
Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Proposal
| Proposal


|-valign="top"
|-valign="top"  
| dcterms.replaces
| citation_fulltext_html_url
| A related resource that is supplanted, displaced, or superseded by the described resource.
| The URL of the full text HTML version of an academic paper
| [http://dublincore.org/documents/dcmi-terms/#terms-replaces DCMI
|  
Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Proposal
| Proposal


|-valign="top"
|-valign="top"  
| dcterms.requires
| citation_isbn
| A related resource that is required by the described resource to support its function, delivery, or coherence.
| The ISBN of the book in which an academic paper is published
| [http://dublincore.org/documents/dcmi-terms/#terms-requires DCMI
| [https://www.google.com/intl/en/scholar/inclusion.html#indexing Google Scholar indexing documentation]
Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Proposal
| Proposal


|-valign="top"
|-valign="top"  
| dcterms.rights
| citation_issn
| Information about rights held in and over the resource.
| The ISSN of the journal in which an academic paper is published
| [http://dublincore.org/documents/dcmi-terms/#terms-rights DCMI
| [https://www.google.com/intl/en/scholar/inclusion.html#indexing Google Scholar indexing documentation]
Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Proposal
| Proposal


|-valign="top"
|-valign="top"  
| dcterms.rightsHolder
| citation_issue
| A person or organization owning or managing rights over the resource.
| The issue of the journal in which an academic paper is published
| [http://dublincore.org/documents/dcmi-terms/#terms-rightsHolder DCMI
| [https://www.google.com/intl/en/scholar/inclusion.html#indexing Google Scholar indexing documentation]
Metadata Terms] mapped according to
|  
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
| Proposal
| Proposal


|-valign="top"
|-valign="top"  
| dcterms.source
| citation_journal_abbrev
| A related resource from which the described resource is derived.
| The abbreviated title of the journal in which an academic paper is published
| [http://dublincore.org/documents/dcmi-terms/#terms-source DCMI
|  
Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Proposal
| Proposal


|-valign="top"
|-valign="top"  
| dcterms.spatial
| citation_journal_title
| Spatial characteristics of the resource.
| The title of the journal in which an academic paper is published
| [http://dublincore.org/documents/dcmi-terms/#terms-spatial DCMI
| [https://www.google.com/intl/en/scholar/inclusion.html#indexing Google Scholar indexing documentation]
Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Proposal
| Proposal


|-valign="top"
|-valign="top"  
| dcterms.subject
| citation_keywords
| The topic of the resource.
| A semicolon-separated list of keywords associated with an academic paper
| [http://dublincore.org/documents/dcmi-terms/#terms-subject DCMI
|  
Metadata Terms] mapped according to
|  
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
| HTML built-in keyword <code>keywords</code>
| Proposal
| Proposal


|-valign="top"
|-valign="top"  
| dcterms.tableOfContents
| citation_language
| A list of subunits of the resource.
| The language in which an academic paper is written, as an ISO 639-1 two-letter code
| [http://dublincore.org/documents/dcmi-terms/#terms-tableOfContents DCMI
|
Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Proposal
| Proposal


|-valign="top"
|-valign="top"  
| dcterms.temporal
| citation_lastpage
| Temporal characteristics of the resource.
| The last page of the journal in which an academic paper is published
| [http://dublincore.org/documents/dcmi-terms/#terms-temporal DCMI
| [https://www.google.com/intl/en/scholar/inclusion.html#indexing Google Scholar indexing documentation]
Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Proposal
| Proposal


|-valign="top"
|-valign="top"  
| dcterms.title
| citation_pdf_url
| A name given to the resource.
| The URL of a PDF version of an academic paper
| [http://dublincore.org/documents/dcmi-terms/#terms-title DCMI
| [https://www.google.com/intl/en/scholar/inclusion.html#indexing Google Scholar indexing documentation]
Metadata Terms] mapped according to
|  
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
| The HTML element <code>title</code>
| Proposal
| Proposal


|-valign="top"
|-valign="top"  
| dcterms.type
| citation_publication_date
| The nature or genre of the resource.
| The publication date of an academic paper
| [http://dublincore.org/documents/dcmi-terms/#terms-type DCMI
| [https://www.google.com/intl/en/scholar/inclusion.html#indexing Google Scholar indexing documentation]
Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Proposal
| Proposal


|-valign="top"
|-valign="top"  
| dcterms.valid
| citation_publisher
| Date (often a range) of validity of a resource.
| The name of the publisher of an academic paper
| [http://dublincore.org/documents/dcmi-terms/#terms-valid DCMI
| The [https://www.google.com/intl/en/scholar/inclusion.html#indexing spec] (as accessed 11-26-17) omits this meta name but refers to the meta name DC.publisher (see that on this page).
Metadata Terms] mapped according to
|  
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|
| Proposal
| Proposal


|-valign="top"
|-valign="top"  
| designer
| citation_technical_report_institution
| Credits the designer(s) responsible for the visual presentation of a website.
| The name of the institution which published an academic technical report or preprint
| [https://sites.google.com/site/metadesignerspec/ Documenation]
| [https://www.google.com/intl/en/scholar/inclusion.html#indexing Google Scholar indexing documentation]
|
|  
| Proposal
| Proposal


|-valign="top"
|-valign="top"  
| EssayDirectory
| citation_technical_report_number
| Defines a custom description of websites listed in EssayDirectory.<br>Example:
| The identification number of an academic technical report or preprint
<meta name="EssayDirectory" content="Helping students find legitimate essay services.">
| [https://www.google.com/intl/en/scholar/inclusion.html#indexing Google Scholar indexing documentation]
| [http://essaydirectory.com/privacy-terms/#EssayDirectory_MetaExtension Documenation]
|  
|
| Proposal
| Proposal


|-valign="top"  
|-valign="top"  
| publisher
| citation_title
| Searching for one content publisher's or page publisher's work requires a standard robot-parsable format for the information. This often differs from creator or author when the publisher is an institution. An institutional name, personal name, or other text entry is permissible.<br />One element represents only one publisher. Multiple publishers are to be represented with multiple tags, although multiple publishers are less common than multiple authors or creators; multiplicity is more likely for a legal name and a well-known name.<br />Search engines may index by any component of a name, so a publisher need only enter a name once in one order.
| The title of an academic paper
| defacto standard, used in nearly every website, e.g. [http://www.gaijin.at/olsmgen.php][http://developers.evrsoft.com/metagen.shtml][http://www.html-seminar.de/metatags.htm]
| [https://www.google.com/intl/en/scholar/inclusion.html#indexing Google Scholar indexing documentation]
|  
|  
| Proposal
| Proposal


|-valign="top"  
|-valign="top"  
| review_date
| citation_volume
| The date a resource is scheduled for review by content creator in order to determine if it should be archived, updated or retained as is.
| The volume of the journal in which an academic paper is published
| [http://www.hc-sc.gc.ca/home-accueil/alt_formats/pacrb-dgapcr/pdf/Metadata_Application_Profile_2009.pdf Health Canada Web Metadata Application Profile March 2009 ]
| [https://www.google.com/intl/en/scholar/inclusion.html#indexing Google Scholar indexing documentation]
|
|  
| Proposal
| Proposal


|-valign="top"  
|-valign="top"
| es.title
| collection
| Object Title, where this is not the TITLE or H1 tag content, but the resource title
| To replace the obsolete dc:collection. A collection is described as a group, an aggregation of topics Used to describe the top-level content of XHTML documents. These appear in your META tags showing a group of subject. Website Taxonomy improve classification for search engine analysis and semantic communication with a description language content.
| [http://www.eibs.co.uk/reference/ EIBS EasySite CMS - Content Attributes Reference]
| dcterms.title
| Proposal


|-valign="top"  
<meta name="collection" content="MetaExtensions" />
| format-detection
<meta name="subject" content="topics, thesaurus, Meta Tag, header, semantic" />
| Enables or disables automatic detection of possible phone numbers in a webpage in Safari on iOS.
| [http://www.trucsweb.com/tw/]
| [http://developer.apple.com/library/safari/#documentation/appleapplications/reference/SafariHTMLRef/Articles/MetaTags.html Apple Safari HTML Reference]
|  
|  
| Proposal
| Proposal


|-valign="top"  
|-valign="top"  
| geo.country
| contact
| Case-insensitive ISO 3166-1 alpha-2 code of a country to which the page is related to.<br>Example:
| Defines the vendor's contact information by way of a phone-number (such as the customer support number), an e-mail ID (such as the customer support mail ID) or a physical address (such as the office address or billing address).<br>
<meta name="geo.country" content="de">
Usage: <code><meta name="contact" content="+1-555-555-5555 [email protected] '5844 South Oak Street, Chicago, Illinois'"></code><br>or in case of multiple entries:<br>
| [http://www.syndic8.com/help_metadata.php All About Feed Metadata]
<code><meta name="contact" content="Chicago: +1-555-555-5555 [email protected] '5844 South Oak Street, Chicago, Illinois'; Brookfield: +1-444-444-4444 [email protected] '2341 Cherry Lane, Brookfield, Illinois'"></code><br>
The content attribute is a space separated string containing the phone-number followed by the e-mail ID and then the address (specified within quotes).<br>
For specifying multiple entries a semi-colon separated list of name: value pairs can be defined. The name can be any descriptive tag identifying the given location.<br>Valid phone numbers and mail IDs should be provided by the vendor. The address can either be a string specified within quotes or the latitude and longtitude coordinates.
| [http://arpita.github.io/ContactMetaExtensions/ Documentation]
|  
|  
| Proposal
| Proposal


|-valign="top"  
|-valign="top"  
| geo.placename
| creator
| Defines name of geographic place to which page is related to.<br>Example:
| Identify the creator of the page’s content, the content generally being the principal part of what info is rendered for website visitors.
<meta name="geo.placename" content="Auwaldstraße 11, 79110 Freiburg im Breisgau, Deutschland">
| [http://brittlebit.org/specifications/html-meta-creator/specification-for-html-meta-element-with-name-value-creator.html BrittleBit.org spec]
| [http://tools.ietf.org/html/draft-daviel-html-geo-tag-08 IETF Draft]
|  
|  
| Proposal
| Proposal


|-valign="top"  
|-valign="top"  
| geo.position
| csrf-param
| Defines geographic position to which page is related to.<br>Example:
| Cross-site request forgery protection parameter for Ruby on Rails
<meta name="geo.position" content="48.02682000000001;7.809769999999958">
| [http://apidock.com/rails/ActionView/Helpers/CsrfHelper/csrf_meta_tag Rails API]
| [http://tools.ietf.org/html/draft-daviel-html-geo-tag-08 IETF Draft]
|  
| icbm (different value syntax)
| Proposal
| Proposal


|-valign="top"  
|-valign="top"  
| geo.region
| csrf-token
| Defines name of geographic region to which page is related to. Content is specified by ISO-3166.<br>Example:
| Cross-site request forgery protection token for Ruby on Rails
<meta name="geo.region" content="DE-BW">
| [http://apidock.com/rails/ActionView/Helpers/CsrfHelper/csrf_meta_tag Rails API]
| [http://tools.ietf.org/html/draft-daviel-html-geo-tag-08 IETF Draft]<br>[http://en.wikipedia.org/wiki/ISO_3166 ISO-3166]
|  
|  
| Proposal
| Proposal


|-valign="top"  
|-valign="top"  
| google-site-verification
| da_anonymiseIP
| Used to verify ownership for Webmaster Tools.
| Defines anonymiseIP parameter for Decibel Insight
| [http://www.google.com/support/webmasters/bin/answer.py?hl=en&answer=79812 Google documentation]
| [https://www.decibelinsight.com/assets/Documents/DecibelInsightImplementationGuide.pdf Documentation]
|  
|  
| Proposal
| Proposal


|-valign="top"  
|-valign="top"  
| googlebot
| da_contactCompany
| Synonym of <code>robots</code> for targeting Googlebot only.
| Defines the contactCompany of the page for Decibel Insight
| [http://www.google.com/support/webmasters/bin/answer.py?hl=en&answer=93710 Google documentation]
| [https://www.decibelinsight.com/assets/Documents/DecibelInsightImplementationGuide.pdf Documentation]
|  
|  
| Proposal
| Proposal


|-valign="top"  
|-valign="top"  
| revisit-after
| da_contactEmail
| revisit-after is used to tell search engines how often to recrawl the page. To our knowledge only one search engine has ever supported it, and that search engine was never widely used — at this point, it is nothing more than a good luck charm.
| Defines the contactEmail of the page for Decibel Insight
| [http://code.google.com/webstats/2005-12/metadata.html Google documentation]
| [https://www.decibelinsight.com/assets/Documents/DecibelInsightImplementationGuide.pdf Documentation]
|  
|  
| Proposal
| Proposal


|-valign="top"  
|-valign="top"  
| icbm
| da_contactFirstName
| Defines geographic position to which page is related to. The acronym stands for ICBM Intercontinental Ballistic Missile - an old, humorous allusion to the possible use of such coordinates.<br>Example:
| Defines the contactFirstName of the page for Decibel Insight
<meta name="ICBM" content="47.0667, 15.4500" />
| [https://www.decibelinsight.com/assets/Documents/DecibelInsightImplementationGuide.pdf Documentation]
| [http://geourl.org/add.html GeoURL documentation]
|  
| geo.position (different value syntax)
| Proposal
| Proposal


|-valign="top"  
|-valign="top"  
| HandheldFriendly
| da_contactLastName
| Denotes handheld-friendly content
| Defines the contactLastName of the page for Decibel Insight
| [http://learnthemobileweb.com/tag/handheldfriendly/]
| [https://www.decibelinsight.com/assets/Documents/DecibelInsightImplementationGuide.pdf Documentation]
|  
|  
| Proposal
| Proposal


|-valign="top"  
|-valign="top"  
| MobileOptimized
| da_contactName
| Denotes content optimized for mobile browsers
| Defines the contactName of the page for Decibel Insight
| [http://learnthemobileweb.com/tag/mobileoptimized/]
| [https://www.decibelinsight.com/assets/Documents/DecibelInsightImplementationGuide.pdf Documentation]
|  
|  
| Proposal
| Proposal


|-valign="top"  
|-valign="top"  
| itemsPerPage
| da_contactTelephone
| Used to identify the number of search results returned per page.
| Defines the contactTelephone of the page for Decibel Insight
| [http://www.opensearch.org/Specifications/OpenSearch/1.1#Response_metadata_in_HTML.2FXHTML OpenSearch Specification]
| [https://www.decibelinsight.com/assets/Documents/DecibelInsightImplementationGuide.pdf Documentation]
|  
|  
| Proposal
| Proposal


|-valign="top"
|-valign="top"  
| msapplication-task
| da_conversionCurrency
| '''"Jump List" or "Pinned Sites" in Windows 7'''
| Defines the conversionCurrency of the page for Decibel Insight
Jump List items act as entry points into the website even when the browser is not running. A Jump List can contain commonly used destinations and tasks. Some items apply to the whole site, and some apply only to specific users.  
| [https://www.decibelinsight.com/assets/Documents/DecibelInsightImplementationGuide.pdf Documentation]
For example, to add a single task called "Check Order Status" specify a meta element in the head of your webpage, as follows:
|
<META name="msapplication-task" content="name=Check Order Status;
| Proposal
      action-uri=./orderStatus.aspx?src=IE9;
 
      icon-uri=./favicon.ico"  />
|-valign="top"  
| [http://msdn.microsoft.com/en-us/library/gg491725(v=vs.85).aspx Tasks in Jump List]
| da_conversionId
| Defines the conversionId of the page for Decibel Insight
| [https://www.decibelinsight.com/assets/Documents/DecibelInsightImplementationGuide.pdf Documentation]
|  
|  
| Proposal
| Proposal


|-valign="top"
|-valign="top"  
| msapplication-starturl
| da_conversionValue
| '''"Jump List" or "Pinned Sites" in Windows 7'''
| Defines the conversionValue of the page for Decibel Insight
The "msapplication-starturl" metadata contains the root URL of the application. The start URL can be fully qualified, or relative to the current document. Only HTTP and HTTPS protocols are allowed. If this element is missing, the address of the current page is used instead.
| [https://www.decibelinsight.com/assets/Documents/DecibelInsightImplementationGuide.pdf Documentation]
<meta name="msapplication-starturl" content="./" />
| [http://msdn.microsoft.com/en-us/library/gg491732(v=VS.85).aspx Declaring Pinned Site Metadata]
|  
|  
| Proposal
| Proposal


|-valign="top"
|-valign="top"  
| msapplication-tooltip
| da_goalCurrency
| '''"Jump List" or "Pinned Sites" in Windows 7'''
| Defines the goalCurrency of the page for Decibel Insight
The "msapplication-tooltip" metadata provides additional tooltip text that appears when you hover over the Pinned Site shortcut in the Windows Start menu or on the desktop.
| [https://www.decibelinsight.com/assets/Documents/DecibelInsightImplementationGuide.pdf Documentation]
<meta name="msapplication-tooltip" content="Channel 9 Podcasts" />
| [http://msdn.microsoft.com/en-us/library/gg491732(v=VS.85).aspx Declaring Pinned Site Metadata]
|  
|  
| Proposal
| Proposal


|-valign="top"
|-valign="top"  
| msapplication-navbutton-color
| da_goalId
| '''"Jump List" or "Pinned Sites" in Windows 7'''
| Defines the goalId of the page for Decibel Insight
The "msapplication-navbutton-color" metadata define the custom color of the Back and Forward buttons in the Pinned Site browser window. Any named color, or hex color value is valid.
| [https://www.decibelinsight.com/assets/Documents/DecibelInsightImplementationGuide.pdf Documentation]
<meta name="msapplication-navbutton-color" content="#FF3300" />
|
| [http://msdn.microsoft.com/en-us/library/gg491732(v=VS.85).aspx Declaring Pinned Site Metadata]
| Proposal
 
|-valign="top"  
| da_goalValue
| Defines the goalValue of the page for Decibel Insight
| [https://www.decibelinsight.com/assets/Documents/DecibelInsightImplementationGuide.pdf Documentation]
|  
|  
| Proposal
| Proposal


|-valign="top"  
|-valign="top"  
| msvalidate.01
| da_interactionSelector
| One of the verification elements used by Bing.
| Defines the interactionSelector parameter for Decibel Insight
| [http://onlinehelp.microsoft.com/en-us/bing/hh204490.aspx Bing Webmaster Tools]
| [https://www.decibelinsight.com/assets/Documents/DecibelInsightImplementationGuide.pdf Documentation]
|  
|  
| Proposal
| Proposal


|-valign="top"  
|-valign="top"  
| norton-safeweb-site-verification
| da_pageRole
| Used to verify ownership of Website for Norton SafeWeb.
| Defines the role of the page for Decibel Insight
| http://safeweb.norton.com/help/site_owners#verification_tips Norton SafeWeb Help Documentation]
| [https://www.decibelinsight.com/assets/Documents/DecibelInsightImplementationGuide.pdf Documentation]
|  
|  
| Proposal
| Proposal


|-valign="top"
|-valign="top"  
| rating
| da_pageTaxonomy
| The Restricted to Adults label (RTA) provides a way for adult oriented websites to indicate that their content is off limits to children. RTA was introduced in 2006 and is currently used by a large number of adult web content providers. RTA is recognized by all major parental control filters.
| Defines the taxonomy of the page for Decibel Insight
Example:
| [https://www.decibelinsight.com/assets/Documents/DecibelInsightImplementationGuide.pdf Documentation]
<meta name="RATING" content="RTA-5042-1996-1400-1577-RTA" />
|  
| [http://www.rtalabel.org/index.php?content=howto RTA documentation]
|
| Proposal
| Proposal


|-valign="top"
|-valign="top"  
| rights-standard
| da_pageTitle
| The purpose is to enable search engines and other cataloging services to compile the types of rights allocated to the work. (Does any search engine actually implement this? [[User:Hsivonen|hsivonen]] 07:34, 14 July 2011 (UTC))
| Defines the pageTitle of the page for Decibel Insight
 
| [https://www.decibelinsight.com/assets/Documents/DecibelInsightImplementationGuide.pdf Documentation]
'''This keyword does not provide, remove or alter any legal protections or designations.'''
|  
 
| Proposal
 
Format:
<pre><meta name="rights-standard" content="element id;rights" /></pre>
 
* element id - the HTML Element ID of the item these rights apply to
* rights - what rights are assigned to the item
** "pd" - Public domain
** "cc by-sa" - Creative Commons Attribution
** "cc by-nd" - Creative Commons  NoDerivs
** "cc by-nc" - Creative Commons Attribution-NonCommercial
** "cc by-nc-sa" - Creative Commons Attribution-NonCommercial-ShareAlike
** "cc by-nc-nd" - Creative Commons Attribution-NonCommercial-NoDerivs
 
| [http://sites.google.com/site/metarightsstandard/ Spec]
|Redundant with [http://www.whatwg.org/specs/web-apps/current-work/multipage/microdata.html#licensing-works Microdata vocabulary for licensing works].
|Proposal


|-valign="top"  
|-valign="top"  
| robots
| da_pageVersion
| A comma-separated list of operators explaining how search engine crawlers should treat the content. Possible values are "noarchive" to prevent cached versions, "noindex" to prevent indexing, and "nofollow" works as the link rel value with the same name. This meta name is already supported by every popular search engine.<br />The content value "NOODP" has been offered elsewhere, so I'm proposing it here. It blocks robots from using [http://www.dmoz.org Open Directory Project] descriptions of a website instead of Web pages' own meta descriptions. It may have been introduced by Microsoft.<br />The content value "NOYDIR" has been offered by Yahoo, so I'm proposing it here. It blocks Yahoo's robot from using the Yahoo directory's descriptions of a website instead of Web pages' own meta descriptions. Whether any other robot supports this is unknown but possibly no other search engine uses Yahoo's directory anyway.
| Defines the pageVersion of the page for Decibel Insight
| [http://www.robotstxt.org/wc/exclusion.html#meta Robots exclusion protocol], NOODP value: [http://www.google.com/support/webmasters/bin/answer.py?hl=en&answer=35264 Google], [http://help.yahoo.com/l/us/yahoo/search/indexing/indexing-11.html Yahoo], NOYDIR value: [http://ysearchblog.com/2007/02/28/yahoo-search-support-for-noydir-meta-tags-and-weather-update/ Yahoo], as accessed 4-28-09
| [https://www.decibelinsight.com/assets/Documents/DecibelInsightImplementationGuide.pdf Documentation]
|  
|  
| Proposal
| Proposal


|-valign="top"  
|-valign="top"  
| slurp
| da_sessionId
| Synonym of <code>robots</code> for targeting Yahoo! only.
| Defines the sessionId parameter for Decibel Insight
| [http://help.yahoo.com/l/au/yahoo7/search/indexing/indexing-11.html Yahoo! documentation]
| [https://www.decibelinsight.com/assets/Documents/DecibelInsightImplementationGuide.pdf Documentation]
|  
|  
| Proposal
| Proposal


|-valign="top"  
|-valign="top"  
| startIndex
| da_userId
| Used to identify the index of the first search result in the current set of search results.
| Defines the userId parameter for Decibel Insight
| [http://www.opensearch.org/Specifications/OpenSearch/1.1#Response_metadata_in_HTML.2FXHTML OpenSearch Specification]
| [https://www.decibelinsight.com/assets/Documents/DecibelInsightImplementationGuide.pdf Documentation]
|  
|  
| Proposal
| Proposal


|-valign="top"  
|-valign="top"
| teoma
| dc.created
| Synonym of <code>robots</code> for targeting Teoma and Ask.com only.
| Date of creation of the resource.
| [http://about.ask.com/en/docs/about/webmasters.shtml Ask.com documentation]
It must be accompanied by a <code>&lt;link rel="schema.dc" href="<nowiki>http://purl.org/dc/elements/1.1/</nowiki>"&gt;</code> element.
| [http://dublincore.org/documents/dcmi-terms/#terms-created DCMI Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Proposal
| Proposal


|-valign="top"  
|-valign="top"
| totalResults
| dc.creator
| Used to identify the number of search results available for the current search.
| An entity primarily responsible for making the resource.
| [http://www.opensearch.org/Specifications/OpenSearch/1.1#Response_metadata_in_HTML.2FXHTML OpenSearch Specification]
It must be accompanied by a <code>&lt;link rel="schema.dc" href="<nowiki>http://purl.org/dc/elements/1.1/</nowiki>"&gt;</code> element.
| [http://dublincore.org/documents/dcmi-terms/#terms-creator DCMI Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Proposal
| Proposal


|-valign="top"  
|-valign="top"  
| verify-v1
| dc.date.issued
| Legacy verification for Google Sitemaps.
| Date of publication for Google News. The format of the content is YYYY-MM-DD or YYYY-MM-DDThh:mm:ssTZD.
| [http://sitemaps.blogspot.com/2006/05/more-about-meta-tag-verification.html Inside Google Sitemaps: More about meta tag verification]
It must be accompanied by a <code>&lt;link rel="schema.dc" href="<nowiki>http://purl.org/dc/elements/1.1/</nowiki>"&gt;</code> element
|  
| [http://www.google.com/support/news_pub/bin/answer.py?answer=93994 Google News documentation]
| <code>dcterms.issued</code> (former <code>&lt;time pubdate&gt;</code> no longer considered due to the abort of <code>@pubdate</code>)
| Proposal
| Proposal


|-valign="top"  
|-valign="top"
| <span id="viewport">viewport</span>
| dc.dateCopyrighted
| Provides a way for documents to specify (using markup rather than CSS) the size, zoom factor, and orientation of the viewport that is used as the base for the document's [http://www.w3.org/TR/CSS21/visudet.html#containing-block-details initial containing block]. The following properties can be used in the value of the <code>content</code> attribute:
| Date of copyright.
* width
It must be accompanied by a <code>&lt;link rel="schema.dc" href="<nowiki>http://purl.org/dc/elements/1.1/</nowiki>"&gt;</code> element.
* height
| [http://dublincore.org/documents/dcmi-terms/#terms-dateCopyrighted DCMI Metadata Terms] mapped according to
* initial-scale
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
* minimum-scale
|  
* maximum-scale
* user-scalable
Examples:
<meta name="viewport" content="initial-scale=1.0">
<meta name="viewport" content="width=480, initial-scale=2.0, user-scalable=1">
For more details, see the [http://dev.w3.org/csswg/css-device-adapt/#viewport-meta-element Viewport META element] section of the [http://dev.w3.org/csswg/css-device-adapt/ CSS Device Adaptation] draft specification.
| For <code>meta</code> elements that have a <code>name</code> attribute whose value is <code>viewport</code>, the [http://dev.w3.org/csswg/css-device-adapt/ CSS Device Adaptation] draft specification defines the recognized properties for the <code>content</code> attribute>, as well as an algorithm for parsing the value of that attribute.
|
| Proposal
| Proposal


|-valign="top"
|-valign="top"
| wt.cg_n
| dc.dateSubmitted
| '''Name of the Content Group'''
| Date of submission of the resource.
Used to configure the appropriate Webtrends advanced feature. These are just some of the more popular ones. These appear in your META tags. – showing you the web page, the source (meta tag), the log files entry and the subsequent WT report.
It must be accompanied by a <code>&lt;link rel="schema.dc" href="<nowiki>http://purl.org/dc/elements/1.1/</nowiki>"&gt;</code> element.
Example:
| [http://dublincore.org/documents/dcmi-terms/#terms-dateSubmitted DCMI Metadata Terms] mapped according to
<meta name="wt.cg_n" content="My content">
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
| [http://product.webtrends.com/WRC/OnDemand/ResourceCenter/rc/Library/PDF/IGOD/WebTrendsAnalyticsOnDemandImplementationGuide.pdf Webtrends Parameters]
|  
|  
| Proposal
| Proposal


|-valign="top"
|-valign="top"
| wt.cg_s
| dc.description
| '''Name of Content Sub-Group'''
| An account of the resource.
Used to configure the appropriate Webtrends advanced feature. These are just some of the more popular ones. These appear in your META tags.  – showing you the web page, the source (meta tag), the log files entry and the subsequent WT report.
It must be accompanied by a <code>&lt;link rel="schema.dc" href="<nowiki>http://purl.org/dc/elements/1.1/</nowiki>"&gt;</code> element.
Example:
| [http://dublincore.org/documents/dcmi-terms/#terms-description DCMI Metadata Terms] mapped according to
<meta name="wt.cg_s" content="My content">
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
| [http://product.webtrends.com/WRC/OnDemand/ResourceCenter/rc/Library/PDF/IGOD/WebTrendsAnalyticsOnDemandImplementationGuide.pdf Webtrends Parameters]
|  
|  
| Proposal
| Proposal


|-valign="top"
|-valign="top"
| wt.ac
| dc.language
| '''Advertising Click parameter'''
| A language of the resource. Recommended best practice is to use a controlled vocabulary such as RFC 4646 [RFC4646].  
When a visitor to your site clicks on an ad, that action is referred to as an Ad Click. The following META tag tracks advertising clicks:
It must be accompanied by a <code>&lt;link rel="schema.dc" href="<nowiki>http://purl.org/dc/elements/1.1/</nowiki>"&gt;</code> element.
<META NAME="WT.ac" CONTENT="name">
| [http://dublincore.org/documents/dcmi-terms/#terms-language DCMI Metadata Terms] mapped according to
Defines the name of the advertisement clicked to reach a particular web page. The Ad Click must contain an external redirect back to the client. The redirect needs to include the necessary code to generate a hit to the SDC server. You can designate multiple Advertising Clicks using semicolons.
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
Examples:
| Redundant with the <code>lang</code> attribute on the
<a href="file111.html?WT.ac=CONTENT111">
<code>html</code> element. (Browsers pay attention to the <code>lang</code> attribute but not <code>dc.language</code>)
<a href="file222.html?WT.ac=CONTENT222">
| Proposal
The name of the advertisement clicked to reach a particular web page. To capture this information with DCS, the Advertising Click must contain an external redirect back to the client. The redirect needs to


include the necessary code to generate a hit to the DCS. The maximum length for each name is 64 bytes.
|-valign="top"
| [http://product.webtrends.com/WRC/OnDemand/ResourceCenter/rc/Library/PDF/IGOD/WebTrendsAnalyticsOnDemandImplementationGuide.pdf Webtrends Parameters]
| dc.license
| A legal document giving official permission to do something with the resource.
It must be accompanied by a <code>&lt;link rel="schema.dc" href="<nowiki>http://purl.org/dc/elements/1.1/</nowiki>"&gt;</code> element.
| [http://dublincore.org/documents/dcmi-terms/#terms-license DCMI Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Proposal
| Proposal


|-valign="top"
|-valign="top"
| wt.ad
| dc.mediator
| '''Advertising View parameter'''
| An entity that mediates access to the resource and for whom the resource is intended or useful.
Visitors often view advertisements that they do not necessarily click on. You can use On-Site Advertising to determine the number of visitors to your web site who view particular ads. With this feature you can produce advertising reports for each of your clients.
It must be accompanied by a <code>&lt;link rel="schema.dc" href="<nowiki>http://purl.org/dc/elements/1.1/</nowiki>"&gt;</code> element.
If you are selling advertising space on your web site, for example, you can collect traffic statistics to help determine pricing schedules.
| [http://dublincore.org/documents/dcmi-terms/#terms-mediator DCMI Metadata Terms] mapped according to
The following META tag tracks advertising views:
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
<meta name="WT.ad" content="My content">
An Ad View occurs when a visitor views a page containing an ad. An ad is a link or graphic that contains an Ad Click parameter in the query portion of it's URL.
| [http://product.webtrends.com/WRC/OnDemand/ResourceCenter/rc/Library/PDF/IGOD/WebTrendsAnalyticsOnDemandImplementationGuide.pdf Webtrends Parameters]
|  
|  
| Proposal
| Proposal


|-valign="top"
|-valign="top"
| wt.mc_id
| dc.medium
| '''Identifies the ID of the marketing campaign'''
| The material or physical carrier of the resource.
To attract new students, a university launches a marketing campaign by sending recruitment email to all graduating high school seniors in a metropolitan area. The email links to a special landing page in the university’s web site, containing the following META tag to track marketing campaigns.
It must be accompanied by a <code>&lt;link rel="schema.dc" href="<nowiki>http://purl.org/dc/elements/1.1/</nowiki>"&gt;</code> element.
Example:
| [http://dublincore.org/documents/dcmi-terms/#terms-medium DCMI Metadata Terms] mapped according to
<META NAME="WT.mc_id" CONTENT="1X2GG34">
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
You may use this parameter on the URL.
Example:
<a href="link?WT.mc_id=1X2GG34">
The Campaign ID 1X2GG34 represents recruits to be contacted by email
| [http://product.webtrends.com/WRC/OnDemand/ResourceCenter/rc/Library/PDF/IGOD/WebTrendsAnalyticsOnDemandImplementationGuide.pdf Webtrends Parameters]
|  
|  
| Proposal
| Proposal


|-valign="top"
|-valign="top"
| wt.sv
| dc.modified
| '''Tracking Servers parameter'''
| Date on which the resource was changed.
If your site is hosted on multiple servers, a server cluster, or a server farm, and you want to evaluate the performance of your load balancer, Webtrends can track page views for each server. To do so, populate the following META tag on all pages on each server:
It must be accompanied by a <code>&lt;link rel="schema.dc" href="<nowiki>http://purl.org/dc/elements/1.1/</nowiki>"&gt;</code> element.
Example:
| [http://dublincore.org/documents/dcmi-terms/#terms-modified DCMI Metadata Terms] mapped according to
<meta name="WT.sv" content="My Server">
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
Defines the name of the machine that serves the web page. If you have two servers (Server1 and Server2), you would make two copies of the META tag and designate CONTENT=“Server1” for deployment to pages on the first server and CONTENT=“Server2” for deployment to the same pages on the second server.
For a server farm, you can extract the value of the built-in server name and dynamically assign it to the
META tag using server-side scripting.
Example:
<meta name="WT.sv" content="Server1">
<meta name="WT.sv" content="Server2">
An Ad View occurs when a visitor views a page containing an ad. An ad is a link or graphic that contains an Ad Click parameter in the query portion of it's URL.
| [https://tagbuilder.webtrends.com/Help/Miscellaneous/AdSearch.aspx?keepThis=true&TB_iframe=true&height=450&width=650 About WT.ad].
|  
|  
| Proposal
| Proposal


|-valign="top"
|-valign="top"
| wt.ti
| dc.provenance
| '''Tracking Page Titles'''
| A statement of any changes in ownership and custody of the resource since its creation that are significant for its authenticity, integrity, and interpretation.
You may want to modify a page title before sending it to Webtrends in the following cases:
It must be accompanied by a <code>&lt;link rel="schema.dc" href="<nowiki>http://purl.org/dc/elements/1.1/</nowiki>"&gt;</code> element.
* You are dealing with dynamic content pages identified by URL parameters, and the page title represents the title of the base URL page rather than the dynamic content page.
| [http://dublincore.org/documents/dcmi-terms/#terms-provenance DCMI Metadata Terms] mapped according to
Unless you modify the page titles, all pages have the same title in the reports.
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
* All pages have been assigned the same title, for reasons of style or company policy.
Even though URLs are displayed in addition to page title, the entire URL cannot be depended upon to distinguish one page from another.
Use server-side scripts to change the title to something that reflects the content of the pages so that you can identify them in reports. Next, pass the customized page titles to Webtrends, using the following META tag:
<META NAME="WT.ti" CONTENT="title">
Defines the name of the title for this page.
| [http://product.webtrends.com/WRC/OnDemand/ResourceCenter/rc/Library/PDF/IGOD/WebTrendsAnalyticsOnDemandImplementationGuide.pdf Webtrends Parameters]
|  
|  
| Proposal
| Proposal


|-valign="top"  
|-valign="top"
| y_key
| dc.publisher
| Used to verify ownership for Yahoo! Site Explorer
| An entity responsible for making the resource available.
| [http://help.yahoo.com/l/us/yahoo/search/siteexplorer/siteexplorer-06.html Yahoo! documentation]
It must be accompanied by a <code>&lt;link rel="schema.dc" href="<nowiki>http://purl.org/dc/elements/1.1/</nowiki>"&gt;</code> element.
| [http://dublincore.org/documents/dcmi-terms/#terms-publisher DCMI Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Proposal
| Proposal


|-valign="top"  
|-valign="top"
| yandex-verification
| dc.references
| Used to verify ownership for Yandex Webmaster.
| A related resource that is referenced, cited, or otherwise pointed to by the described resource.
| [http://help.yandex.ru/webmaster/?id=995300#995356 Yandex Webmaster ownership verification]
It must be accompanied by a <code>&lt;link rel="schema.dc" href="<nowiki>http://purl.org/dc/elements/1.1/</nowiki>"&gt;</code> element.
| [http://dublincore.org/documents/dcmi-terms/#terms-references DCMI Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Proposal
| Proposal


|-valign="top"  
|-valign="top"
| globrix.instruction
| dc.temporal
| Globrix property information: Property to Buy or Rent
| Temporal characteristics of the resource.
| [http://content.globrix.com/web-tools/8-technical-guide/74-what-are-globrix-meta-tags-and-how-can-i-use-them FAQ About the Globrix meta tags.]
It must be accompanied by a <code>&lt;link rel="schema.dc" href="<nowiki>http://purl.org/dc/elements/1.1/</nowiki>"&gt;</code> element.
| [http://dublincore.org/documents/dcmi-terms/#terms-temporal DCMI Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Proposal
| Proposal


|-valign="top"  
|-valign="top"
| globrix.price
| dc.title
| Globrix property information: Price for the property
| A name given to the resource.
| [http://content.globrix.com/web-tools/8-technical-guide/74-what-are-globrix-meta-tags-and-how-can-i-use-them FAQ About the Globrix meta tags.]
It must be accompanied by a <code>&lt;link rel="schema.dc" href="<nowiki>http://purl.org/dc/elements/1.1/</nowiki>"&gt;</code> element.
| [http://dublincore.org/documents/dcmi-terms/#terms-title DCMI Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Proposal
| Proposal


|-valign="top"  
|-valign="top"
| globrix.postcode
| dc.type
| Globrix property information: Postcode of the property
| The nature or genre of the resource. Recommended best practice is to use a controlled vocabulary such as the DCMI Type Vocabulary [DCMITYPE].
| [http://content.globrix.com/web-tools/8-technical-guide/74-what-are-globrix-meta-tags-and-how-can-i-use-them FAQ About the Globrix meta tags.]
To describe the file format, physical medium, or dimensions of the resource, use the Format element.
It must be accompanied by a <code>&lt;link rel="schema.dc" href="<nowiki>http://purl.org/dc/elements/1.1/</nowiki>"&gt;</code> element.
| [http://dublincore.org/documents/dcmi-terms/#terms-type DCMI Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Proposal
| Proposal


|-valign="top"  
|-valign="top"
| globrix.bedrooms
| dc.valid
| Globrix property information: Number of bedrooms the property has
| Date (often a range) of validity of a resource.
| [http://content.globrix.com/web-tools/8-technical-guide/74-what-are-globrix-meta-tags-and-how-can-i-use-them FAQ About the Globrix meta tags.]
It must be accompanied by a <code>&lt;link rel="schema.dc" href="<nowiki>http://purl.org/dc/elements/1.1/</nowiki>"&gt;</code> element.
| [http://dublincore.org/documents/dcmi-terms/#terms-valid DCMI Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Proposal
| Proposal


|-valign="top"  
|-valign="top"
| globrix.bathrooms
| DCS.dcssta
| Globrix property information: Number of bathrooms the property has
| '''Error page parameter'''
| [http://content.globrix.com/web-tools/8-technical-guide/74-what-are-globrix-meta-tags-and-how-can-i-use-them FAQ About the Globrix meta tags.]
This defines an error code web page so that Webtrends can identify it as a non-success page. Generally used to identify pages that contain 400 and 500 series return codes. As a result, Webtrends excludes these pages from its standard "Pages" report, to instead populate its standard "errors" report.
Example:
<meta name="DCS.dcssta" content="404">
| [http://product.webtrends.com/WRC/OnDemand/ResourceCenter/rc/Library/PDF/IGOD/WebTrendsAnalyticsOnDemandImplementationGuide.pdf Webtrends Parameters].
|  
|  
| Proposal
| Proposal


|-valign="top"  
|-valign="top"
| globrix.type
| dcterms.abstract
| Globrix property information: Type of property e.g. 'semi-detatched house'
| A summary of the resource.
| [http://content.globrix.com/web-tools/8-technical-guide/74-what-are-globrix-meta-tags-and-how-can-i-use-them FAQ About the Globrix meta tags.]
It must be accompanied by a <code>&lt;link rel="schema.dcterms" href="<nowiki>http://purl.org/dc/terms/</nowiki>"&gt;</code> element.
|  
| [http://dublincore.org/documents/dcmi-terms/#terms-abstract DCMI
Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
| <code>&lt;meta name="description"&gt;</code>
| Proposal
| Proposal


|-valign="top"  
|-valign="top"
| globrix.condition
| dcterms.accessRights
| Globrix property information: Condition of the property e.g. 'renovated'
| Information about who can access the resource or an indication of its security status.
| [http://content.globrix.com/web-tools/8-technical-guide/74-what-are-globrix-meta-tags-and-how-can-i-use-them FAQ About the Globrix meta tags.]
It must be accompanied by a <code>&lt;link rel="schema.dcterms" href="<nowiki>http://purl.org/dc/terms/</nowiki>"&gt;</code> element.
| [http://dublincore.org/documents/dcmi-terms/#terms-accessRights DCMI Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Proposal
| Proposal


|-valign="top"  
|-valign="top"
| globrix.features
| dcterms.accrualMethod
| Globrix property information: Features of the property e.g. 'double glazing'
| The method by which items are added to a collection.
| [http://content.globrix.com/web-tools/8-technical-guide/74-what-are-globrix-meta-tags-and-how-can-i-use-them FAQ About the Globrix meta tags.]
It must be accompanied by a <code>&lt;link rel="schema.dcterms" href="<nowiki>http://purl.org/dc/terms/</nowiki>"&gt;</code> element.
| [http://dublincore.org/documents/dcmi-terms/#terms-accrualMethod DCMI Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Proposal
| Proposal


|-valign="top"  
|-valign="top"
| globrix.outsidespace
| dcterms.accrualPeriodicity
| Globrix property information: External features of the property e.g. 'garden'
| The frequency with which items are added to a collection.
| [http://content.globrix.com/web-tools/8-technical-guide/74-what-are-globrix-meta-tags-and-how-can-i-use-them FAQ About the Globrix meta tags.]
It must be accompanied by a <code>&lt;link rel="schema.dcterms" href="<nowiki>http://purl.org/dc/terms/</nowiki>"&gt;</code> element.
| [http://dublincore.org/documents/dcmi-terms/#terms-accrualPeriodicity DCMI Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Proposal
| Proposal


|-valign="top"  
|-valign="top"
| globrix.parking
| dcterms.accrualPolicy
| Globrix property information: Parking available for property e.g. 'parking for 2 cars'
| The policy governing the addition of items to a collection.
| [http://content.globrix.com/web-tools/8-technical-guide/74-what-are-globrix-meta-tags-and-how-can-i-use-them FAQ About the Globrix meta tags.]
It must be accompanied by a <code>&lt;link rel="schema.dcterms" href="<nowiki>http://purl.org/dc/terms/</nowiki>"&gt;</code> element.
| [http://dublincore.org/documents/dcmi-terms/#terms-accrualPolicy DCMI Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Proposal
| Proposal


|-valign="top"  
|-valign="top"
| globrix.period
| dcterms.alternative
| Globrix property information: Period of the property e.g. 'victorian terrace'
| An alternative name for the resource.
| [http://content.globrix.com/web-tools/8-technical-guide/74-what-are-globrix-meta-tags-and-how-can-i-use-them FAQ About the Globrix meta tags.]
It must be accompanied by a <code>&lt;link rel="schema.dcterms" href="<nowiki>http://purl.org/dc/terms/</nowiki>"&gt;</code> element.
| [http://dublincore.org/documents/dcmi-terms/#terms-alternative DCMI Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Proposal
| Proposal


|-valign="top"  
|-valign="top"
| globrix.poa
| dcterms.audience
| Globrix property information: If the property price is only available on application
| A class of entity for whom the resource is intended or useful.
| [http://content.globrix.com/web-tools/8-technical-guide/74-what-are-globrix-meta-tags-and-how-can-i-use-them FAQ About the Globrix meta tags.]
It must be accompanied by a <code>&lt;link rel="schema.dcterms" href="<nowiki>http://purl.org/dc/terms/</nowiki>"&gt;</code> element.
| [http://dublincore.org/documents/dcmi-terms/#terms-audience DCMI Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Proposal
| Proposal


|-valign="top"  
|-valign="top"
| globrix.tenure
| dcterms.available
| Globrix property information: The tenure of the property e.g. 'leasehold'
| Date (often a range) that the resource became or will become available.
| [http://content.globrix.com/web-tools/8-technical-guide/74-what-are-globrix-meta-tags-and-how-can-i-use-them FAQ About the Globrix meta tags.]
It must be accompanied by a <code>&lt;link rel="schema.dcterms" href="<nowiki>http://purl.org/dc/terms/</nowiki>"&gt;</code> element.
| [http://dublincore.org/documents/dcmi-terms/#terms-available DCMI Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Proposal
| Proposal


|-valign="top"  
|-valign="top"
| globrix.underoffer
| dcterms.bibliographicCitation
| Globrix property information: Indicates if the property is under offer
| A bibliographic reference for the resource.
| [http://content.globrix.com/web-tools/8-technical-guide/74-what-are-globrix-meta-tags-and-how-can-i-use-them FAQ About the Globrix meta tags.]
It must be accompanied by a <code>&lt;link rel="schema.dcterms" href="<nowiki>http://purl.org/dc/terms/</nowiki>"&gt;</code> element.
|  
| [http://dublincore.org/documents/dcmi-terms/#terms-bibliographicCitation DCMI Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
| The HTML attribute <code>cite</code>
| Proposal
| Proposal


|-valign="top"  
|-valign="top"
| globrix.priceproximity
| dcterms.collection
| Globrix property information: The region of the attached price e.g. 'guide price of'
| An aggregation of resources.
| [http://content.globrix.com/web-tools/8-technical-guide/74-what-are-globrix-meta-tags-and-how-can-i-use-them FAQ About the Globrix meta tags.]
It must be accompanied by a <code>&lt;link rel="schema.dcterms" href="<nowiki>http://purl.org/dc/terms/</nowiki>"&gt;</code> element.
| [http://dublincore.org/documents/dcmi-terms/#dcmitype-Collection DCMI Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Proposal
| Proposal


|-valign="top"  
|-valign="top"
| globrix.latitude
| dcterms.conformsTo
| Globrix property information: The latitude of the property
| An established standard to which the described resource conforms.
| [http://content.globrix.com/web-tools/8-technical-guide/74-what-are-globrix-meta-tags-and-how-can-i-use-them FAQ About the Globrix meta tags.]
It must be accompanied by a <code>&lt;link rel="schema.dcterms" href="<nowiki>http://purl.org/dc/terms/</nowiki>"&gt;</code> element.
| [http://dublincore.org/documents/dcmi-terms/#terms-conformsTo DCMI Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Proposal
| Proposal


|-valign="top"  
|-valign="top"
| globrix.longitude
| dcterms.contributor
| Globrix property information: The longitude of the property
| An entity responsible for making contributions to the content of the resource.
| [http://content.globrix.com/web-tools/8-technical-guide/74-what-are-globrix-meta-tags-and-how-can-i-use-them FAQ About the Globrix meta tags.]
It must be accompanied by a <code>&lt;link rel="schema.dcterms" href="<nowiki>http://purl.org/dc/terms/</nowiki>"&gt;</code> element.
| [http://dublincore.org/documents/dcmi-terms/#terms-contributor DCMI Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Proposal
| Proposal


|-valign="top"  
|-valign="top"
| meta_date
| dcterms.coverage
| The date used to indicate that the Metadata has been prepared and/or reviewed and approved by the Metadata Unit. Its purpose is administrative. (Used by "Autonomy".)
| The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant.  
| [http://www.hc-sc.gc.ca/home-accueil/alt_formats/pacrb-dgapcr/pdf/Metadata_Application_Profile_2009.pdf Health Canada Web Metadata Application Profile March 2009 ]
It must be accompanied by a <code>&lt;link rel="schema.dcterms" href="<nowiki>http://purl.org/dc/terms/</nowiki>"&gt;</code> element.
|
| [http://dublincore.org/documents/dcmi-terms/#terms-coverage DCMI Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
| Proposal
| Proposal


|}
|-valign="top"
| dcterms.created
| Date of creation of the resource.
It must be accompanied by a <code>&lt;link rel="schema.dcterms" href="<nowiki>http://purl.org/dc/terms/</nowiki>"&gt;</code> element.
| [http://dublincore.org/documents/dcmi-terms/#terms-created DCMI Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|
| Proposal


== Proposals that don't meet the [http://www.whatwg.org/specs/web-apps/current-work/multipage/semantics.html#other-metadata-names requirements] for a registration ==
|-valign="top"
| dcterms.creator
| An entity primarily responsible for making the resource. Examples of a Creator include a person, an organization, or a service.
It must be accompanied by a <code>&lt;link rel="schema.dcterms" href="<nowiki>http://purl.org/dc/terms/</nowiki>"&gt;</code> element.
| [http://dublincore.org/documents/dcmi-terms/#terms-creator DCMI Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
| In some cases redundant with the HTML built-in keyword <code>author</code>
| Proposal


Note that these proposals can be moved back to the registry table if the problems listed in the rightmost column of this table are addressed.
|-valign="top"
| dcterms.date
| A point or period of time associated with an event in the lifecycle of the resource.
It must be accompanied by a <code>&lt;link rel="schema.dcterms" href="<nowiki>http://purl.org/dc/terms/</nowiki>"&gt;</code> element.
| [http://dublincore.org/documents/dcmi-terms/#terms-date DCMI Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|
| Proposal


{|border=1 cellpadding=4 cellspacing=0
|-valign="top"
! Keyword
| dcterms.dateAccepted
! Brief description
| Date of acceptance of the resource.
! Link to specification
It must be accompanied by a <code>&lt;link rel="schema.dcterms" href="<nowiki>http://purl.org/dc/terms/</nowiki>"&gt;</code> element.
! Synonyms
| [http://dublincore.org/documents/dcmi-terms/#terms-dateAccepted DCMI Metadata Terms] mapped according to
! Status
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
! Registration requirement failure
|
| Proposal


|-valign="top"  
|-valign="top"
| gm-gpx-v
| dcterms.dateCopyrighted
| Wordpress Plugin Google Maps GPX Viewer
| Date of copyright.
| [http://wordpress.org/extend/plugins/google-maps-gpx-viewer/ Google Maps GPX Viewer]
It must be accompanied by a <code>&lt;link rel="schema.dcterms" href="<nowiki>http://purl.org/dc/terms/</nowiki>"&gt;</code> element.
| [http://dublincore.org/documents/dcmi-terms/#terms-dateCopyrighted DCMI Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Incomplete proposal
| Proposal
| Claimed spec link is not a link to a spec


|-valign="top"  
|-valign="top"
| og:title
| dcterms.dateSubmitted
| Open Graph Protocol by Facebook developers
| Date of submission of the resource.
| [http://developers.facebook.com/docs/opengraph/ Facebook developers]
It must be accompanied by a <code>&lt;link rel="schema.dcterms" href="<nowiki>http://purl.org/dc/terms/</nowiki>"&gt;</code> element.
| [http://dublincore.org/documents/dcmi-terms/#terms-dateSubmitted DCMI Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Incomplete proposal
| Proposal
| The spec specifies this to be a value of the property attribute--not a meta keyword


|-valign="top"  
|-valign="top"
| og:type
| dcterms.description
| Open Graph Protocol by Facebook developers
| An account of the resource. Description may include but is not limited to: an abstract, a table of contents, a graphical representation, or a free-text account of the resource.
| [http://developers.facebook.com/docs/opengraph/ Facebook developers]
It must be accompanied by a <code>&lt;link rel="schema.dcterms" href="<nowiki>http://purl.org/dc/terms/</nowiki>"&gt;</code> element.
|  
| [http://dublincore.org/documents/dcmi-terms/#terms-description DCMI Metadata Terms] mapped according to
| Incomplete proposal
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
| The spec specifies this to be a value of the property attribute--not a meta keyword
| HTML built-in keyword <code>description</code>
| Proposal


|-valign="top"  
|-valign="top"
| og:url
| dcterms.educationLevel
| Open Graph Protocol by Facebook developers
| A class of entity, defined in terms of progression through an educational or training context, for which the described resource is intended.
| [http://developers.facebook.com/docs/opengraph/ Facebook developers]
It must be accompanied by a <code>&lt;link rel="schema.dcterms" href="<nowiki>http://purl.org/dc/terms/</nowiki>"&gt;</code> element.
| [http://dublincore.org/documents/dcmi-terms/#terms-educationLevel DCMI Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Incomplete proposal
| Proposal
| The spec specifies this to be a value of the property attribute--not a meta keyword


|-valign="top"  
|-valign="top"
| og:image
| dcterms.extent
| Open Graph Protocol by Facebook developers
| The size or duration of the resource.
| [http://developers.facebook.com/docs/opengraph/ Facebook developers]
It must be accompanied by a <code>&lt;link rel="schema.dcterms" href="<nowiki>http://purl.org/dc/terms/</nowiki>"&gt;</code> element.
| [http://dublincore.org/documents/dcmi-terms/#terms-extent DCMI Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Incomplete proposal
| Proposal
| The spec specifies this to be a value of the property attribute--not a meta keyword


|-valign="top"  
|-valign="top"
| og:site_name
| dcterms.format
| Open Graph Protocol by Facebook developers
| The file format, physical medium, or dimensions of the resource.
| [http://developers.facebook.com/docs/opengraph/ Facebook developers]
It must be accompanied by a <code>&lt;link rel="schema.dcterms" href="<nowiki>http://purl.org/dc/terms/</nowiki>"&gt;</code> element.
|  
| [http://dublincore.org/documents/dcmi-terms/#terms-format DCMI Metadata Terms] mapped according to
| Incomplete proposal
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
| The spec specifies this to be a value of the property attribute--not a meta keyword
| To be limited to dimensions information. File format for the document is to be determined by server. Linked resources can be described by <code>type</code> attribute.
| Proposal
 
|-valign="top"
| dcterms.hasFormat
| A related resource that is substantially the same as the pre-existing described resource, but in another format.
It must be accompanied by a <code>&lt;link rel="schema.dcterms" href="<nowiki>http://purl.org/dc/terms/</nowiki>"&gt;</code> element.
| [http://dublincore.org/documents/dcmi-terms/#terms-hasFormat DCMI Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
| The HTML link type keyword "alternate" used with "link" element:<code>rel="alternate" href="URI of related resource"</code>
| Proposal


|-valign="top"  
|-valign="top"
| fb:admins
| dcterms.hasPart
| Open Graph Protocol by Facebook developers
| A related resource that is included either physically or logically in the described resource.
| [http://developers.facebook.com/docs/opengraph/ Facebook developers]
It must be accompanied by a <code>&lt;link rel="schema.dcterms" href="<nowiki>http://purl.org/dc/terms/</nowiki>"&gt;</code> element.
| [http://dublincore.org/documents/dcmi-terms/#terms-hasPart DCMI Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Incomplete proposal
| Proposal
| The spec specifies this to be a value of the property attribute--not a meta keyword
|-valign="top"
| dcterms.hasVersion
| A related resource that is a version, edition, or adaptation of the described resource.
It must be accompanied by a <code>&lt;link rel="schema.dcterms" href="<nowiki>http://purl.org/dc/terms/</nowiki>"&gt;</code> element.
| [http://dublincore.org/documents/dcmi-terms/#terms-hasVersion DCMI Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
| The HTML link type keyword "alternate" used with "link" element:<code>rel="alternate" href="URI of related resource"</code>
| Proposal


|-valign="top"  
|-valign="top"
| og:description
| dcterms.identifier
| Open Graph Protocol by Facebook developers
| An unambiguous reference to the resource within a given context.
| [http://developers.facebook.com/docs/opengraph/ Facebook developers]
It must be accompanied by a <code>&lt;link rel="schema.dcterms" href="<nowiki>http://purl.org/dc/terms/</nowiki>"&gt;</code> element.
| [http://dublincore.org/documents/dcmi-terms/#terms-identifier DCMI Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Incomplete proposal
| Proposal
| The spec specifies this to be a value of the property attribute--not a meta keyword


|-valign="top"  
|-valign="top"
| fb:page_id
| dcterms.instructionalMethod
| Open Graph Protocol by Facebook developers
| A process used to engender knowledge, attitudes and skills, that the described resource is designed to support.
| [http://developers.facebook.com/docs/opengraph/ Facebook developers]
It must be accompanied by a <code>&lt;link rel="schema.dcterms" href="<nowiki>http://purl.org/dc/terms/</nowiki>"&gt;</code> element.
| [http://dublincore.org/documents/dcmi-terms/#terms-instructionalMethod DCMI Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Incomplete proposal
| Proposal
| The spec specifies this to be a value of the property attribute--not a meta keyword
 
|-valign="top"
| dcterms.isFormatOf
| A related resource that is substantially the same as the described resource, but in another format.
It must be accompanied by a <code>&lt;link rel="schema.dcterms" href="<nowiki>http://purl.org/dc/terms/</nowiki>"&gt;</code> element.
| [http://dublincore.org/documents/dcmi-terms/#terms-isFormatOf DCMI Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
| The HTML link type keyword "alternate" used with "link" element:<code>rel="alternate" href="URI of related resource"</code>
| Proposal


|-valign="top"  
|-valign="top"
| audience
| dcterms.isPartOf
| To aid search engines in classifying and to aid directory compilers, an audience most appropriate for the page may be suggested. Subject matter may not be a good clue; for example, an analysis of children's literature may be directed to teachers.<br />A value is free-form case-insensitive text without a comma. Multiple values are to be comma-separated. Singular and plural forms have the same meaning.<br />Recognized values:<br />-- "all" and "everyone", which have the same meaning<br />-- "adult" and "mature" have the same meaning and are for content that only adults may access, but no one responsible for preventing a nonadult or the immature from accessing the page or its content should rely on either or both of these values to do so without other means (not the same as "grownup", which see)<br />-- "child" and "juvenile", which have the same meaning<br />-- "teen"<br />-- "grownup" is not identical to "adult" or "mature" in not implying a precise boundary but is approximately any person who may be able to understand and apply the content (e.g., car driving instruction that may be read by a minor not yet old enough to drive a car but who would likely benefit from somewhat early exposure to the instruction)<br />-- "parent" to include guardian and temporary caregiver<br />-- "teacher" to include professor and ad hoc instructor<br />-- "elementary school student" to include any student below high school<br />-- "high school student"<br />-- "elhi" to include any student in elementary school through high school<br />-- "college student" including graduate and professional school<br />-- "business" including management, finance, and prospective customers (this includes e-commerce and investor sites)<br />-- "health" including any health care provider including alternative and ad hoc<br />-- "patient" for any health care recipient<br />-- "lawyer" including judge, paralegal, and jailhouse lawyer<br />-- "law client" for any prospective recipient of a lawyer's service (not usually a social work client) with ''lawyer'' including paralegal and jailhouse lawyer but not necessarily judge<br />-- "craft" for any craftworker including laborer and artisan<br />-- "artist" including musician, actor, dancer, and sculptor and including creator and performer<br />-- "military" including paramilitary<br />-- "news" including any consumer of rapidly-developing news<br />-- "introductory" and "beginner", which have the same meaning<br />-- "intermediate" and "midlevel", which have the same meaning<br />-- "advanced" and "advance", which have the same meaning<br />-- "scholarly" and "scholar", which have the same meaning<br />-- "popular" generally referring to a writing style<br />-- "older" including retiree<br />-- "institution" including from corporation to conspiracy (such as for management advice)<br />-- "government" including agencies and prospective politicians<br />-- values using any integer or single-digit decimal in the form of "grade 8" or "grade 6.4" including to refer to a reading comprehension level (this generally will not exceed 12 and might be meaningless above 20 so higher values may be interpreted as the highest meaningful value)<br />-- "viewers" for when content (such as a movie) is intended almost entirely to be seen rather than read<br />-- "listeners" for when content (such as music) is intended almost entirely to be heard rather than read but not generally including text-to-speech support<br />-- "tts", "text-to-speech", or "text to speech", which three have the same meaning and which are for a page that has substantial support for TTS or that will be readily understood through TTS without need for such support (TTS is often aided by, e.g., pre-resolving pronunciation ambiguities in page coding)<br />-- values using any numbers in the form of "3-6 years old", whether a range or a single-number value<br />-- values using any decade in the form of "born in 1970s"<br />Unrecognized values such as "botanists", "Texans", and "writers who use red ink" may be used but at a risk that a search engine or directory editor will either fail to recognize it or will interpret it in unpredictable ways, or will in the future.<br />Spellings that are erroneous or slightly different from a recognized value may be interpreted by a search engine or directory editor as representing a recognized value.<br />The absence of the keyword defaults to a value of "all" but without overriding another indication arrived at by other means.
| A related resource in which the described resource is physically or logically included.  
It must be accompanied by a <code>&lt;link rel="schema.dcterms" href="<nowiki>http://purl.org/dc/terms/</nowiki>"&gt;</code> element.
| [http://dublincore.org/documents/dcmi-terms/#terms-isPartOf DCMI Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
|
| Proposal
| Incomplete proposal
| Lacks link to a spec


|-valign="top"  
|-valign="top"
| blogcatalog
| dcterms.isReferencedBy
| Used to verify ownership of Blog Catalog.com
| A related resource that references, cites, or otherwise points to the described resource.
| [http://www.blogcatalog.com/ Blog catalog site]
It must be accompanied by a <code>&lt;link rel="schema.dcterms" href="<nowiki>http://purl.org/dc/terms/</nowiki>"&gt;</code> element.
| [http://dublincore.org/documents/dcmi-terms/#terms-isReferencedBy DCMI Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Incomplete proposal
| Proposal
| Claimed spec link is not a link to a spec


|-valign="top"  
|-valign="top"
| bot-. . .
| dcterms.isReplacedBy
| Robot owners, to allow page authors access to robotic capabilities, e.g., to deny them, should prefix "bot-" to the name of their robot, especially for proprietary bots.<br />Example: If a robot were to be named "dullbucklequiz", the name in the meta element would be "bot-dullbucklequiz".<br />The value "bot-" alone represents all bots so prefixed, like a wildcard.<br />Arguably, there's no need for a list here of any specific bots if http://user-agents.org or http://www.botsvsbrowsers.com/ (and perhaps other sites) is reliable.
| A related resource that supplants, displaces, or supersedes the described resource.  
|
It must be accompanied by a <code>&lt;link rel="schema.dcterms" href="<nowiki>http://purl.org/dc/terms/</nowiki>"&gt;</code> element.
|
| [http://dublincore.org/documents/dcmi-terms/#terms-isReplacedBy DCMI Metadata Terms] mapped according to
| Incomplete proposal
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
| Lacks link to a spec, tries to register a space of names instead of enumerated names
| The HTML link type keyword "alternate" used with "link" element:<code>rel="alternate" href="URI of related resource"</code>
| Proposal


|-valign="top"  
|-valign="top"
| citeseerxbot
| dcterms.isRequiredBy
| Synonym of <code>robots</code> for targeting CiteSeerX only.
| A related resource that requires the described resource to support its function, delivery, or coherence.
| [http://csxstatic.ist.psu.edu/about/crawler CiteSeerX Crawler documentation]
It must be accompanied by a <code>&lt;link rel="schema.dcterms" href="<nowiki>http://purl.org/dc/terms/</nowiki>"&gt;</code> element.
| [http://dublincore.org/documents/dcmi-terms/#terms-isRequiredBy DCMI Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Incomplete proposal
| Proposal
| The claimed spec doesn't actually specify meta keyword


|-valign="top"  
|-valign="top"
| created
| dcterms.issued
| The datetime at which the document was created. The value is an ISO8601 date. The date MUST follow the [http://www.w3.org/TR/NOTE-datetime W3C Profile of ISO 8601] with a granularity of "Complete date:" or finer. The [http://www.bbc.co.uk/guidelines/futuremedia/desed/previousversions/searchmetadata_vs_1_0.shtml#metadata BBC] use this name.
| Date of formal issuance (e.g., publication) of the resource. (DC doesn't spec a date format but the established practice is YYYY-MM-DD.)
|  
It must be accompanied by a <code>&lt;link rel="schema.dcterms" href="<nowiki>http://purl.org/dc/terms/</nowiki>"&gt;</code> element.
|
| [http://dublincore.org/documents/dcmi-terms/#terms-issued DCMI Metadata Terms] mapped according to
| Incomplete proposal
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
| Lacks link to a spec
| (former <code>&lt;time pubdate&gt;</code> no longer considered due to the abort of <code>@pubdate</code>)
| Proposal


|-valign="top"  
|-valign="top"
| creator
| dcterms.isVersionOf
| The creator is an off-Web or pre-Web creator of a work for which an author authored a Web page, so that the creator and the author may be different people.<br />Searching for one content creator's work requires a standard robot-parsable format for the information. A personal name, institutional name, or other text entry is permissible.<br />One element represents only one creator. Multiple creators are to be represented with multiple tags.<br />Search engines may index by any component of a name, so a content creator need only enter a name once in one first-last or family-given order (e.g., Pat Thunderbird or Thunderbird, Pat, but not requiring both).
| A related resource of which the described resource is a version, edition, or adaptation.
| [[Talk:MetaExtensions#Re:_Proposed_'creator'_MetaExtension|Talk]]
It must be accompanied by a <code>&lt;link rel="schema.dcterms" href="<nowiki>http://purl.org/dc/terms/</nowiki>"&gt;</code> element.
|
| [http://dublincore.org/documents/dcmi-terms/#terms-isVersionOf DCMI Metadata Terms] mapped according to
| Incomplete proposal
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
| Lacks link to a spec
| The HTML link type keyword "alternate" used with "link" element:<code>rel="alternate" href="URI of related resource"</code>
| Proposal


|-valign="top"
| dcterms.language
| A language of the resource. Recommended best practice is to use a controlled vocabulary such as RFC 4646 [RFC4646].
It must be accompanied by a <code>&lt;link rel="schema.dcterms" href="<nowiki>http://purl.org/dc/terms/</nowiki>"&gt;</code> element.
| [http://dublincore.org/documents/dcmi-terms/#terms-language DCMI Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
| Redundant with the <code>lang</code> attribute on the <code>html</code> element. (Browsers pay attention to the <code>lang</code> attribute but not <code>dcterms.language</code>)
| Proposal


|-valign="top"  
|-valign="top"
| msnbot
| dcterms.license
| Synonym of <code>robots</code> for targeting Bing only.
| A legal document giving official permission to do something with the resource.
It must be accompanied by a <code>&lt;link rel="schema.dcterms" href="<nowiki>http://purl.org/dc/terms/</nowiki>"&gt;</code> element.
| [http://dublincore.org/documents/dcmi-terms/#terms-license DCMI Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
| The HTML <code>&lt;link&gt;</code> element with the keyword <code>"license"</code> as value of the <code>rel</code> attribute.
| Proposal
 
|-valign="top"
| dcterms.mediator
| An entity that mediates access to the resource and for whom the resource is intended or useful.  
It must be accompanied by a <code>&lt;link rel="schema.dcterms" href="<nowiki>http://purl.org/dc/terms/</nowiki>"&gt;</code> element.
| [http://dublincore.org/documents/dcmi-terms/#terms-mediator DCMI Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
|  
| Proposal
| Incomplete proposal
| Lacks link to a spec


|-valign="top"  
|-valign="top"
| ia_archive
| dcterms.medium
| Synonym of <code>robots</code> for targeting Internet Archive and Alexa only.
| The material or physical carrier of the resource.
It must be accompanied by a <code>&lt;link rel="schema.dcterms" href="<nowiki>http://purl.org/dc/terms/</nowiki>"&gt;</code> element.
| [http://dublincore.org/documents/dcmi-terms/#terms-medium DCMI Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
|  
| Proposal
| Incomplete proposal
| Lacks link to a spec


|-valign="top"  
|-valign="top"
| datetime-coverage
| dcterms.modified
| The author may be the best expert on which time frame is most relevant to the content. Leaving that to search engine analysis may be too chancy without search engine optimization, which analysis is difficult to apply by algorithm to, e.g., historical papers that may focus on the 1800s but mention 1731 and 1912 perhaps unimportantly.<br />The value for this keyword is a date or time -- not a range and not vague, for which other keywords are proposed -- in a format in accordance with http://www.w3.org/TR/NOTE-datetime (albeit a note that's at W3C only for discussion). Any of the six levels of granularity in that note are acceptable, such as expressing only a year.<br />Should this keyword appear more than  once, all the values so appearing are determinative. Multiple values are to be expressed with separate meta elements lest the note be revised in the future in a way incompatible with comma-separating a list.
| Date on which the resource was changed. (DC doesn't spec a date format but the established practice is YYYY-MM-DD.)
|
It must be accompanied by a <code>&lt;link rel="schema.dcterms" href="<nowiki>http://purl.org/dc/terms/</nowiki>"&gt;</code> element.
| [http://dublincore.org/documents/dcmi-terms/#terms-modified DCMI Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|
|
| Incomplete proposal
| Proposal
| Lacks link to a spec


|-valign="top"  
|-valign="top"
| property="og:*"
| dcterms.provenance
| Metadata used by the Open Graph protocol (used by Facebook). Note: currently these are defined as: <meta property="og.*" content="x"/>
| A statement for any changes in ownership and custody of the resource since its creation that are significant for its authenticity, integrity, and interpretation.
| [http://developers.facebook.com/docs/opengraph/ FAQ About the Open Graph protocol from Facebook.]
It must be accompanied by a <code>&lt;link rel="schema.dcterms" href="<nowiki>http://purl.org/dc/terms/</nowiki>"&gt;</code> element.
| [http://dublincore.org/documents/dcmi-terms/#terms-provenance DCMI Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Doesn't belong in this registry
| Proposal
| Not a value to be used in the <code>name</code> attribute


|-valign="top"  
|-valign="top"
| datetime-coverage-end
| dcterms.publisher
| This is identical to the keyword datetime-coverage except that it represents only the end. If this keyword is used without datetime-coverage-start (also proposed), its value is interpreted as ending a range without a start.<br />Should this keyword appear more than once, all the values so appearing are determinative, in which case each represents the end of a different range assumed to be nonnesting. Example: If four elements happen to be in the order of datetime-coverage-end=1865, datetime-coverage-start=1914, datetime-coverage-end=1918, and datetime-coverage-start=1862, assuming proper formatting, the ranges should be interpreted as 1862-1865 and 1914-1918.
| An entity responsible for making the resource available.  
|  
It must be accompanied by a <code>&lt;link rel="schema.dcterms" href="<nowiki>http://purl.org/dc/terms/</nowiki>"&gt;</code> element.
|
| [http://dublincore.org/documents/dcmi-terms/#terms-publisher DCMI Metadata Terms] mapped according to
| Incomplete proposal
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
| Lacks link to a spec
| publisher
| Proposal


|-valign="top"  
|-valign="top"
| datetime-coverage-start
| dcterms.references
| This is identical to the keyword datetime-coverage except that it represents only the start. If this keyword is used without datetime-coverage-end (also proposed), its value is interpreted as starting a range without an end.<br />Should this keyword appear more than once, all the values so appearing are determinative, in which case each represents the start of a different range assumed to be nonnesting. Example: If four elements happen to be in the order of datetime-coverage-start=1862, datetime-coverage-start=1914, datetime-coverage-end=1865, and datetime-coverage-end=1918, assuming proper formatting, the ranges should be interpreted as 1862-1865 and 1914-1918.
| A related resource that is referenced, cited, or otherwise pointed to by the described resource.  
|  
It must be accompanied by a <code>&lt;link rel="schema.dcterms" href="<nowiki>http://purl.org/dc/terms/</nowiki>"&gt;</code> element.
|
| [http://dublincore.org/documents/dcmi-terms/#terms-references DCMI Metadata Terms] mapped according to
| Incomplete proposal
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
| Lacks link to a spec
| <code>cite</code> attribute on specific quotes, if any.
| Proposal


|-valign="top"  
|-valign="top"
| datetime-coverage-vague
| dcterms.relation
| This is identical to the keyword datetime-coverage except that its value is not necessarily crisp. This keyword should be used only when datetime-coverage, datetime-coverage-start, and datetime-coverage-end are inappropriate, but there's no ban on using all four. Any text without a comma can be the value (e.g., Pleistocene, 1820s, Tuesdays, or before we were born); multiple values are comma-separated.<br />If this keyword is used with datetime-coverage, datetime-coverage-start, or datetime-coverage-end, the vague value should be exploited along with the value/s for the other keyword/s.<br />Should this keyword appear more than once, all are determinative.
| A related resource.  
|  
It must be accompanied by a <code>&lt;link rel="schema.dcterms" href="<nowiki>http://purl.org/dc/terms/</nowiki>"&gt;</code> element.
|
| [http://dublincore.org/documents/dcmi-terms/#terms-relation DCMI Metadata Terms] mapped according to
| Incomplete proposal
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
| Lacks link to a spec
| If the relation comes from an internal reference or quote, <code>dcterms.references</code> should be preferred.
| Proposal


|-valign="top"  
|-valign="top"
| DC.
| dcterms.replaces
| Dublin Core, maintained by Dublin Core MetaData Initiative (DCMI), is an extensive system with some overlap with non-DC names.<br />This reserves all strings that begin with DC and a dot. ''Not true; DC-HTML doesn't use hardwired prefixes, but defines the prefixes using link/@rel="scheme.prefix"''
| A related resource that is supplanted, displaced, or superseded by the described resource.  
| [http://www.DublinCore.org DCMI]
It must be accompanied by a <code>&lt;link rel="schema.dcterms" href="<nowiki>http://purl.org/dc/terms/</nowiki>"&gt;</code> element.
|
| [http://dublincore.org/documents/dcmi-terms/#terms-replaces DCMI Metadata Terms] mapped according to
| Incomplete proposal
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
| Tries to register a space of names instead of enumerated names
| The HTML link type keyword "alternate" used with "link" element:<code>rel="alternate" href="URI of related resource"</code>
| Proposal


|-valign="top"  
|-valign="top"
| dir-content-pointer
| dcterms.requires
| When several pages in a directory include main content, a table of contents, an index, and the like, a search engine may be able to organize results more usefully by identifying which is which with a standard vocabulary, helpful when different publishers use different conventions when displaying or printing content.<br />A value is free-form case-insensitive text without a comma and optionally with a trailing number. Multiple values are to be comma-separated (multiple values are appropriate when one document serves multiple purposes). Singular and plural forms have the same meaning.<br />Recognized values, which are pointer types to which numbers may be suffixed, are limited to "start" meaning 'the first page that should be seen by a user' (this may be anywhere in the directory and anywhere within content), "toc" meaning 'table of contents', "intro" including introductions, forewords, prefaces, and tables of figures, "abstract", "main", "bibliography" and "biblio", which have the same meaning, "index" which may mean 'sitemap' or not, "afterword" and "update" which have the same meaning and need not actually update, "credit" meaning 'credits and acknowledgments', and "author bio" meaning 'author's biography', including any information about the author including credentials and contact information. The number suffix may be spaceless or not.<br />When numbers are suffixed, a search engine or directory should arrange like items in numerical order in the results, with unnumbered items following like items that are numbered, e.g., intro 1, intro 2, main 1, main 2, main, main, and so on.<br />Each directory and each subdirectory has its own sequence.
| A related resource that is required by the described resource to support its function, delivery, or coherence.
It must be accompanied by a <code>&lt;link rel="schema.dcterms" href="<nowiki>http://purl.org/dc/terms/</nowiki>"&gt;</code> element.
| [http://dublincore.org/documents/dcmi-terms/#terms-requires DCMI Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
|
| Proposal
| Incomplete proposal
| Lacks link to a spec


|-valign="top"
|-valign="top"
|expires
| dcterms.rights
|<code>meta name='expires'</code> defines the expiration date of the page. This can be used for web pages in preparation for an upcoming event, e.g. a registration form for an exposition or competition, or other cases with a pre-set date when the document will no longer be valid, e.g. a product offer in a special sale or a support page for a product known not to be supported anymore from a given time onward.
| Information about rights held in and over the resource.
It must be accompanied by a <code>&lt;link rel="schema.dcterms" href="<nowiki>http://purl.org/dc/terms/</nowiki>"&gt;</code> element.
| [http://dublincore.org/documents/dcmi-terms/#terms-rights DCMI Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
| The HTML <code>&lt;link&gt;</code> element with the keyword <code>"license"</code> as value of the <code>rel</code> attribute, if referring to a legal license format.
| Proposal


Search engines should respond to this meta tag in a reasonable way, i.e. by removing the page from their main search results after the expiration date (possibly still returning the result in a special search for expired pages as long as the page exists and is not explicitly excluded via <code>robots.txt</code> or <code>meta name='robots'</code> etc.) or simply by indicating to the user that this result is out-of-date.
|-valign="top"
| dcterms.rightsHolder
| A person or organization owning or managing rights over the resource.  
It must be accompanied by a <code>&lt;link rel="schema.dcterms" href="<nowiki>http://purl.org/dc/terms/</nowiki>"&gt;</code> element.
| [http://dublincore.org/documents/dcmi-terms/#terms-rightsHolder DCMI Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|
| Proposal


The content attribute should define the expiration date in accordance with http://www.w3.org/TR/NOTE-datetime . The meta tag should not be used for pages without expiration date. However, for historical reasons, search engines should also interpret other date formats where possible and should be prepared to find values such as "", "0", "no" and "never". Such non-date values are to be interpreted as no expiration date.
|-valign="top"
| dcterms.source
| A related resource from which the described resource is derived.
It must be accompanied by a <code>&lt;link rel="schema.dcterms" href="<nowiki>http://purl.org/dc/terms/</nowiki>"&gt;</code> element.
| [http://dublincore.org/documents/dcmi-terms/#terms-source DCMI Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
| The HTML link type keyword "alternate" used with "link" element:<code>rel="alternate" href="URI of related resource"</code> if documents are different versions. Otherwise, <code>cite</code> attribute.
| Proposal


Correctly formatted example:
|-valign="top"
<code><pre><meta name='expires' content='2012-12-31T23:59Z'></pre></code>
| dcterms.spatial
| Spatial characteristics of the resource.
It must be accompanied by a <code>&lt;link rel="schema.dcterms" href="<nowiki>http://purl.org/dc/terms/</nowiki>"&gt;</code> element.
| [http://dublincore.org/documents/dcmi-terms/#terms-spatial DCMI Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
| geographic-coverage
| Proposal


This tag is not to be confused with and has a different meaning than <code>meta http-equiv='expires'.</code>
|-valign="top"
|
| dcterms.subject
|
| The topic of the resource.
| Incomplete proposal
| [http://dublincore.org/documents/dcmi-terms/#terms-subject DCMI Metadata Terms] mapped according to
| Lacks link to a spec
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
| HTML built-in keywords <code>description</code> or <code>keywords</code>
| Proposal
 
|-valign="top"
| dcterms.tableOfContents
| A list of subunits of the resource.
It must be accompanied by a <code>&lt;link rel="schema.dcterms" href="<nowiki>http://purl.org/dc/terms/</nowiki>"&gt;</code> element.
| [http://dublincore.org/documents/dcmi-terms/#terms-tableOfContents DCMI Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
| HTML built-in keywords <code>description</code> or <code>keywords</code>. Otherwise, a <code>details-summary</code> model which would provide user-readable information.
| Proposal


|-valign="top"  
|-valign="top"
| format-print
| dcterms.temporal
| This is to allow a user agent to inform an operating system or a printer driver of the preferred print medium, such as the paper size.<br />A value is free-form case-insensitive text without a comma. Multiple values are to be comma-separated (multiple values might be appropriate because standard paper sizes vary around the world). Singular and plural forms have the same meaning.<br />Recognized values are limited to "letter", "A4", "legal", "A5", "B5", "monarch", "envelope 10" meaning size #10, "envelope 6-3-4" meaning size #6 3/4, values with integers and decimals in the form of "8.5 x 11" or "8.5x11" in which spacing of the "x" does not affect meaning, "paper", which means 'paper of the default color (usually white) and weight (usually 20-lb. stock)', "white", "yellow", "pink", "blue", "green", "violet", or "multicolor", which means a medium of the given color or mixed, "letterhead", "p2 letterhead" meaning 'letterhead intended for any page except the first', "watermark" meaning a 'special watermark such as an organization's own', and "plain" meaning 'not preprinted and not letterhead (it may have a paper manufacturer's watermark not related to letterhead)'.<br />Omitting "paper" when another recognized value is given defaults to an implied meaning of 'paper' with the other value; e.g., "letter" means 'letter paper'; the same principle applies to a medium's color (the default being white for paper and colorless for transparency) and plainness or lack thereof (the default being plain).<br />Other values should be proposed before being recognized here. Label sizes should be proposed here for labels that are not on backing sheets that fit one of the recognized values, e.g., labels on narrow rolls. Blueprint paper sizes should be proposed here. Media other than standard paper, such as onion skin, heavier paper, card, and clear or color transparency, should be proposed here.<br />The user agent may, with the user's or user sysadmin's permission (as by a menu-driven default), interpret a value to offer an alternative the user might accept and software and firmware other than the UA may interpret a value to the same end with or without permission, so this keyword is only suggestive; e.g., "letter" may be interpreted as "A4".<br />The absence of the keyword defaults to a value determined by other than the page, e.g., by the printer driver or the user agent.
| Temporal characteristics of the resource.  
| [[Talk:MetaExtensions#Re:_Proposed_'format-print'_MetaExtension|Talk]]
It must be accompanied by a <code>&lt;link rel="schema.dcterms" href="<nowiki>http://purl.org/dc/terms/</nowiki>"&gt;</code> element.
| [http://dublincore.org/documents/dcmi-terms/#terms-temporal DCMI Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|  
|  
| Incomplete proposal
| Proposal
| Lacks link to a spec


|-valign="top"  
|-valign="top"
| geographic-coverage
| dcterms.title
| The author may be the best expert on the geographic relevance of the content. Leaving that to search engine analysis may be too chancy without search engine optimization, which analysis is difficult to apply by algorithm to, e.g., historical papers and epidemiological studies which may mention locales only once.<br />Absence of the keyword defaults to a value of world (not universe), unless the search engine chooses to interpret the page or larger unit for some other value, probably based on other than just contact information given in the website.<br />The value for this keyword is a semicolon-separated list of one or more place-values, the order of which do not matter. One place-value will use commas to separate, in order, an optional standard natural language symbol applicable to the place-value (when omitted the language applicable to the page will control), a place-class, one or more place-subclasses if any, and one or more place name parts (where, e.g., in "Cape Town, South Africa", "Cape Town" is a place name part but "Town" is not). Spaces after semicolons and commas are optional; spaces within place-values are present when required for each place-value (e.g., "Quezon City", not an invented "QuezonCity").<br />To distinguish names that might otherwise be too similar, place-classes, all lower-case and hyphenatably spaceless, include ''outer-space'', ''region'' (on Earth and crossing or larger than a nation, e.g., southern hemisphere, polar region, temperate zone, or Asia), ''intntl-water'' (an 'international water body'), ''intntl-agcy'' ('international agency' or 'international collection', e.g., all U.N. member nations), ''nation'', ''within-nation'' (limited to only one political level down from nation, e.g., state, province, territory, possession, city not included within other political units of a nation, or any comparable unit), ''city'' (including town, village, hamlet, and any comparable political unit below the level of ''within-nation''), ''addr'' (including address, full-length street, building, institution, and neighborhood without political boundaries), ''pol-unit'' (''pol'' abbreviating 'political') (e.g., a place of disputed nationhood), ''hist-pol-unit'' (''hist'' abbreviating 'historical') (e.g., the Roman Empire), ''feature'' (e.g., river), ''num'' (e.g., latitude and longitude or outer-space equivalent in numbers), and ''ethereal'' (including thealogical/theological, fictional including from modern popular entertainment, and ancient secular mythical, but not including that which is asserted to be a state of mind or existence but not a place, such as nirvana). (Example for one hypothetical page: name="geographic-coverage" content="region, sub-Saharan Africa; nation, Panama; city, Panama, Panama; within-nation, Sao Paulo, Brazil; city, Sao Paulo, Sao Paulo, Brazil; within-nation, Mississippi, United States of America; region, Middle East; region, Midwest, United States of America; hist-pol-unit, Northwest Territory, United States of America; feature, river, Indus; outer-space, Indus; ethereal, ultima Thule; ethereal, Heaven; ethereal, Flatland; ethereal, Valhalla; en-US, addr, Hotel Valhalla, Fredrikstad, Norway; es, nation, Espana" (Indus is both a river and a constellation, illustrating the need for place-classes)).<br />Ambiguity of place-values should be avoided despite convenience in coding because search engines may each interpret them as they see fit, e.g., it would be hard for an engine to distinguish New York from New York.<br />For consistency of spelling, several authority lists should be settled upon, with legal, well-known, and disputed names and common abbreviations all being acceptable; but I'm not proposing one here now (relying on IANA's ccTLD list might be too complex to implement and still assure coding consistency, e.g., occasionally ccTLDs can be phased out and off of IANA's list) (a standard vocabulary possibly usable here is the [http://www.getty.edu/research/conducting_research/vocabularies/tgn/index.html Getty Thesaurus of Geographic Names Online], subject to licensing and charset choice); and promulgating authority lists may best be done publicly by search engine managements, who may disagree with each other.<br />Allowing Unicode for non-Roman alphabet-using locales is desirable, but at present that may raise technical problems, including computer security issues, that are not yet readily soluble.
| A name given to the resource.  
|
It must be accompanied by a <code>&lt;link rel="schema.dcterms" href="<nowiki>http://purl.org/dc/terms/</nowiki>"&gt;</code> element.
|
| [http://dublincore.org/documents/dcmi-terms/#terms-title DCMI Metadata Terms] mapped according to
| Incomplete proposal
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
| Lacks link to a spec
| HTML built-in element <code>title</code> (not to be confused with <code>@title</code> attributes specific to each element)
| Proposal


|-valign="top"  
|-valign="top"
| keywords-not
| dcterms.type
| A comma-separated list of negative keywords that distinguish a closely-related theme from this page's true theme, to support Boolean NOT searches often more realistically than visible text can, especially when both themes share the same lexicon.<br />If keywords is no longer a supported name for a meta element, keywords-not is superfluous; however, debate has been revived on whether keywords should be supported or not; see the keywords entry in this Wiki.
| The nature or genre of the resource.
| [http://www.w3.org/Bugs/Public/show_bug.cgi?id=6609 W3C Bug 6609]
| [http://dublincore.org/documents/dcmi-terms/#terms-type DCMI Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|
| Proposal
 
|-valign="top"
| dcterms.valid
| Date (often a range) of validity of a resource.
It must be accompanied by a <code>&lt;link rel="schema.dcterms" href="<nowiki>http://purl.org/dc/terms/</nowiki>"&gt;</code> element.
| [http://dublincore.org/documents/dcmi-terms/#terms-valid DCMI Metadata Terms] mapped according to
[http://dublincore.org/documents/dc-html/ Expressing Dublin Core metadata using HTML/XHTML meta and link elements]
|
| Proposal
 
|-valign="top"
| detectify-verification
| Used by the Detectify web vulnerability scanner as a domain verification key. The Detectify service will only consider the domain authenticated if it contains the "detectify-verification" meta tag, with the content set according to a per-customer token.
| [http://labs.detectify.com/post/85707633296/detectify-validation-specification Documentation]
|
|
| Incomplete proposal
| Proposal
| Lacks link to a spec


|-valign="top"
| designer
| Credits the designer(s) responsible for the visual presentation of a website.
| [https://sites.google.com/site/metadesignerspec/ Documentation]
|
| Proposal


|-valign="top"
| entity
| Allows for definitions of XML-style entities for substitution of references (defined as specially-named elements (e.g., use of data element and/or data-* attribute) or script tags) via inclusion of a JavaScript library. Library also supports inclusion of additional meta element entity definitions via iframe documents.
| [https://github.com/brettz9/js-css-entities Documentation]
|
| Proposal


|-valign="top"  
|-valign="top"
| nextgen
| EssayDirectory
| Used for nextgen gallery plugin in wordpress
| Defines a custom description of websites listed in EssayDirectory.<br>Example:
| [http://www.alexa.com/faqs/?p=188 Alexa FAQ About this meta attribute Reference]
<meta name="EssayDirectory" content="Helping students find legitimate essay services.">
| [http://essaydirectory.com/privacy-terms/#EssayDirectory_MetaExtension Documentation]
|
| Proposal
 
|-valign="top"
| fdse-description
| Tag used by FDSE search software, allows different description to be displayed in fdse results to that shown in description
| [http://www.xav.com/scripts/search/help/1013.html]
|  
|  
| Incomplete proposal
| Proposal
| Unrelated spec link


|-valign="top"  
|-valign="top"  
| page-datetime
| fdse-index-as
| Better ranking in search engine results for recency or relevance to an event date would be aided by a standard format robots can parse. Users would save search time by not having to load many pages to find which ones are new or date-relevant.<br />To supply a consistent and known format, the value for this keyword is a date-time expression formed in accordance with http://www.w3.org/TR/NOTE-datetime (albeit a note that's at W3C only for discussion). Any of the six levels of granularity in that note are acceptable, such as expressing only a year.<br />Should this keyword appear more than once, only the first one so appearing is determinative.
| Tag used by FDSE search software, allows FDSE to index a page as url described here
| [http://www.xav.com/scripts/search/help/1014.html]
|  
|  
| Proposal
|-valign="top"
| fdse-keywords
| Tag used by FDSE search software, allows different keywords to be used by FDSE to keywords tag
| [http://www.xav.com/scripts/search/help/1013.html]
|  
|  
| Incomplete proposal
| Proposal
| Lacks link to a spec


|-valign="top"  
|-valign="top"  
| page-version
| fdse-refresh
| Pages may be revised several times daily. While date-time given to a granularity of a fraction of a second would often suffice, when a page has to be approved more than once before posting, any or no such time may be correct (without this keyword, a comment could be necessary but probably not parsable by an engine). In addition, versions regardless of date may show consecutiveness and can replace a date that must be vague. In that case, a version number may be more useful for searches and so a robot-parsable format is needed.<br />The keyword's value is stated in ASCII digits, is any nonnegative base-10 rational number expressed as an integer or a decimal, with any number of decimal places allowed, and may be padded with any number of leading zeros to support extraction for ASCII sorting.<br />Should this keyword appear more than once, only the first one so appearing is determinative.<br />The versions 0 and 0.''n'', with ''n'' being to any number of places, signify beta versions, i.e., drafts, in the tradition of beta software, while versions 1 and higher ordinarily signify final-release versions. After a final-release version is released, a draft of a later version is not given a version number of 0 or 0.''n'', but is numbered higher than the last final-release version. It is suggested to page authors that draft status, if applicable, be shown in the visibly displayed text of the page, rather than that this meta tag be relied upon as the sole notice of draft status, as it may be inadequate notice if alone.<br />To assign a low page-version such as 0.''n'' or 1, the page's URL, if static, may be used as the relevant premise. Thus, if a page is copied or moved to a new URL, the author may choose to restart page-version numbering from 0.''n'' or 1. If a page's URL is dynamic, e.g., if created on the fly from a script, the page author may prefer to use as the relevant premise for assigning a low page-version such as 0.''n'' or 1 the URL of the script or other technology that generates the dynamic-URL page, placing this meta element containing this attribute within the script or other technology, not within the generating page's head element (the generating page's head element may have its own meta element with this attribute describing the generating page). If one page containing the script or other technology that generates another page has more than one means for generating dynamic-URL pages, each means should contain its own meta element with this attribute. Page-version is thus largely independent of the page's date, although both would likely advance roughly in parallel.
| Tag used by FDSE search software, allows FDSE to ignore refresh meta tags
| [http://www.xav.com/scripts/search/help/1013.html]
|  
|  
| Proposal
|-valign="top"
| fdse-robots
| Tag used by FDSE search software, allows different robots instructions to be sent to FDSE than that sent to other search engines eg: index no index pages for local search
| [http://www.xav.com/scripts/search/help/1013.html]
|  
|  
| Incomplete proposal
| Proposal
| Lacks link to a spec


|-valign="top"  
|-valign="top"  
| referrer
| FLBlogAuthor
| Developers wish to control the sharing of referrer information with linked resources and followed links at the meta level. It's sometimes desirable to share referrer information from secure to non-secure resources. The proposal is to add:
| Depicts whether author of the blog is lawfirm or FL author
| [http://images.findlaw.com/firmsites/flfs_meta_tags.html FL Meta Names documentation]
|
| Proposal


<code><pre><meta name="referrer" content="never|default|always"></pre></code>
|-valign="top"  
| format-detection
| Enables or disables automatic detection of possible phone numbers in a webpage in Safari on iOS.
| [http://developer.apple.com/library/safari/#documentation/appleapplications/reference/SafariHTMLRef/Articles/MetaTags.html Apple Safari HTML Reference]
|
| Proposal


Where the value of the '''content''' attribute is:
|-valign="top"
* '''never''': No referrer information is leaked when following a links or requesting resources.
| format-print
* '''default''': Include referrer information in non-secure context or for HTTPS resources with the same origin.
| Store print media requirements for a page so a user agent can alert a user to unusual needs, such as special paper, before printing is to begin.
* '''always''': Include referrer information when following all links and requesting any resources.
| [http://brittlebit.org/specifications/html-meta-format-print/specification-for-html-meta-element-with-name-value-format-print.html BrittleBit.org spec]
|
| Proposal


Since <code><meta name="referrer" content="never"></code> is redundant with a proposed <code><link rel="nofollow"></code>, the <code><link rel="nofollow"></code> proposal should be supplanted with this one, which provides more robust control.
|-valign="top"
|
| fragment
|
| Opts a webpage into the AJAX crawling scheme when it does not have a "#!" URL. The only valid content value is "!".
| Incomplete proposal
<meta name="fragment" content="!">
| Lacks link to a spec
| [https://developers.google.com/webmasters/ajax-crawling/docs/specification Google Crawable AJAX Specification]
|  
| Proposal


|-valign="top"  
|-valign="top"  
| resolutions
| FSDateCreation
| Authoring web sites to use resolution independent images that display beautifully on high-resolution displays should be made as easy as possible for developers and should not require JavaScript to accomplish.
| Mentions the date when this web page was created
| [http://images.findlaw.com/firmsites/flfs_meta_tags.html FL Meta Names documentation]
|
| Proposal


To accomplish this, I propose a new HTML Meta Tag, <code>resolutions</code>, that can be used to specify that high-resolution versions of images linked to from the page are available and that the browser should use them in place of the lower-resolution default images if it detects that a user is using a high-resolution screen. The resolutions meta tag lists the device-pixel ratios supported by images in the page.  
|-valign="top"
| FSDatePublish
| Mentions the date when this web page was created
| [http://images.findlaw.com/firmsites/flfs_meta_tags.html FL Meta Names documentation]
|
| Proposal


So, for example…
|-valign="top"
| FSFLContent
| Informs the Publisher tool whether this page contains any content or not. Valid values yes or no
| [http://images.findlaw.com/firmsites/flfs_meta_tags.html FL Meta Names documentation]
|
| Proposal


<code><pre><meta name="resolutions" content="2x"></pre></code>
|-valign="top"  
| FSLanguage
| Language of the content in the page. Example: US English or UK English, etc
| [http://images.findlaw.com/firmsites/flfs_meta_tags.html FL Meta Names documentation]
|
| Proposal


… means that the developer is telling the browser that she has created 2x resolution images for the images linked to from the current page and named them with a @2x suffix.  
|-valign="top"
| FSOnSitemap
| Whether the page is accessible via the Sitemap link in the firmsite
| [http://images.findlaw.com/firmsites/flfs_meta_tags.html FL Meta Names documentation]
|
| Proposal


To illustrate, if her image tag is as follows…
|-valign="top"
| FSPageDescription
| Description of the content of page
| [http://images.findlaw.com/firmsites/flfs_meta_tags.html FL Meta Names documentation]
|
| Proposal


<code><pre><img src="/images/flower.jpg" alt="A flower"></pre></code>
|-valign="top"
| FSPageName
| Name of the page within a Findlaw firmsite
| [http://images.findlaw.com/firmsites/flfs_meta_tags.html FL Meta Names documentation]
|
| Proposal


… then she has two image files under /images: the low-resolution default (flower.jpg), and a higher-resolution (200%) version named flower@2x.jpg.  
|-valign="top"
| FSSearchable
| This tag mentions whether a certain page can be searched or not
| [http://images.findlaw.com/firmsites/flfs_meta_tags.html FL Meta Names documentation]
|
| Proposal


(This is the same naming convention already used by Apple in its Cocoa Touch framework for automatically loading in higher-resolution versions of images.)
|-valign="top"
| FSSection
| Depicts whether a page is a Section Page or simple page. Section pages can have links to other pages
| [http://images.findlaw.com/firmsites/flfs_meta_tags.html FL Meta Names documentation]
|
| Proposal


Based on the meta tag, if the browser detects that the user is running at a <code>min-device-pixel-ratio</code> of 2.0, it will automatically ask for the 2x version of the image (flower@2x.jpg) instead of the default image as specified in the image tag.  
|-valign="top"
| FSWritertoolPageType
| Page Type of a page in the firmsite. Page Type values help the Publisher toold in page creation
| [http://images.findlaw.com/firmsites/flfs_meta_tags.html FL Meta Names documentation]
|
| Proposal


Finally, so as not to flood external sites with high-resolution image requests, this functionality would only work for local images specified via relative links.
|-valign="top"
| gcterms.topicTaxonomy
| Organize resources specifically for taxonomy-based topical browse or search structures on websites (ie: breadcrumbs / website information architecture).
| [http://www.gcpedia.gc.ca/wiki/Metadata_Tools#Metadata_for_Web_Resource_Discovery] Government of Canada, Web Content Management System Metadata Application Profile.
|
| Proposal


<b>Multiple resolutions</b>
|-valign="top"
| geo.a1
| National subdivision (state, canton, region, province, prefecture) of civil address to which the page is related. For resources within the US and Canada, corresponds to the common 2-character State/Province codes.
<meta name="geo.a1" content="AB">
| [http://tools.ietf.org/html/draft-daviel-html-geo-tag-08 IETF Draft]<br>[http://geotags.com/geo/geotags2.html GeoTags.com]<br>RFC 4776
|
| Proposal


The resolutions tag can also contain a list of supported device-pixel ratios so as to support even higher-resolution displays when and if they become available in the future.  
|-valign="top"
| geo.a2
| County, parish, gun (JP), district (IN) of civil address to which the page is related.
<meta name="geo.a2" content="Warwickshire">
| [http://tools.ietf.org/html/draft-daviel-html-geo-tag-08 IETF Draft]<br>[http://geotags.com/geo/geotags2.html GeoTags.com]<br>RFC 4776
|
| Proposal


For example:
|-valign="top"
| geo.a3
| City, township, shi (JP) of civil address to which the page is related.
<meta name="geo.a3" content="Calgary">
| [http://tools.ietf.org/html/draft-daviel-html-geo-tag-08 IETF Draft]<br>[http://geotags.com/geo/geotags2.html GeoTags.com]<br>RFC 4776
|
| Proposal


<code><pre><meta name="resolutions" content="2x, 4x, 8x"></pre></code>
|-valign="top"
| geo.country
| Case-insensitive ISO 3166-1 alpha-2 code of a country to which the page is related.
<meta name="geo.country" content="de">
| [http://tools.ietf.org/html/draft-daviel-html-geo-tag-08 IETF Draft]<br>[http://geotags.com/geo/geotags2.html GeoTags.com]<br>[http://en.wikipedia.org/wiki/ISO_3166-2 ISO-3166-2]
|
| Proposal


In this case, the developer would provide 2x, 4x, and 8x versions of all images. So, in the running example, she would make flower.jpg, flower@2x.jpg, flower@4x.jpg, and flower@8x.jpg.
|-valign="top"
| geo.lmk
| A landmark or vanity address to which the page is related.
<meta name="geo.lmk" content="Auwaldstraße 11, 79110 Freiburg im Breisgau, Deutschland">
| [http://tools.ietf.org/html/draft-daviel-html-geo-tag-08 IETF Draft]<br>[http://geotags.com/geo/geotags2.html GeoTags.com]
|
| Proposal


<b>Advantages</b>
|-valign="top"
| geo.placename
| Superseded by geo.lmk. Name of geographic place to which the page is related.
<meta name="geo.placename" content="London, Ontario">
| [http://tools.ietf.org/html/draft-daviel-html-geo-tag-08 IETF Draft]<br>[http://geotags.com/geo/geotags2.html GeoTags.com]
|
| Proposal


The advantages of this approach are several:
|-valign="top"
| geo.position
| Geographic position to which the page is related.
<meta name="geo.position" content="48.02682000000001;7.809769999999958"><br />Like icbm except for value syntax.
| [http://tools.ietf.org/html/draft-daviel-html-geo-tag-08 IETF Draft (expired)]<br>[http://geotags.com/geo/geotags2.html GeoTags.com]
|
| Proposal


<ol>
|-valign="top"
    <li>Makes it very simple for developers to support high-resolution displays like the iPhone 4's Retina screen</li>
| geo.region
    <li>Does not require JavaScript</li>
| Superseded by either geo.country alone or geo.country plus geo.a1. Name of geographic region to which the page is related. Content is specified by ISO-3166.
    <li>Does not change the default way that things work (if the meta tag is not specified, the browser simply behaves as it always has).</li>
<meta name="geo.region" content="DE-BW">
</ol>
| [http://tools.ietf.org/html/draft-daviel-html-geo-tag-08 IETF Draft]<br>[http://geotags.com/geo/geotags2.html GeoTags.com]<br>[http://en.wikipedia.org/wiki/ISO_3166 ISO-3166]
 
|  
| [http://aralbalkan.com/3355 Proposal for native browser support of high-resolution image substitution]
| Proposal
[http://aralbalkan.com/3331 How to make your web content look stunning on the iPhone 4’s new Retina display]
|
| Incomplete proposal
| Lacks link to a spec


|-valign="top"  
|-valign="top"  
| rights
| globrix.bathrooms
| As a page effectively appears in at least two forms, usually one as interpreted and displayed on a device and the other as source code, arguably intellectual property rights that must be asserted must be asserted in ways understandable in both contexts. For example, &amp;copy; is a raw representation that may legally fail as part of copyright notice to someone seeing source code and not the display, important when someone wants to copy source code for use elsewhere and may rely on a defense of innocent infringement (at least in U.S.). While such assertions can be made in a comment element, it may be helpful to have a tag that search engines can parse and index verbatim.<br />The value may include standard and nonstandard notices, invocations of licenses such as GFDL and ASCAP, and any other information. Content is defined as free-form, leaving the page author discretion for the entry.<br />Statements in one tag may discuss several portions of the page differently, e.g., with different licenses.<br />More than one license may be offered, along with the page's relationship to all.<br />Not all statements need be license grants. A statement may state whom to ask for reprint permission or may reserve all rights, for example.<br />Only one meta tag with this keyword may be present. Page authors must not use more than one. A UA finding multiple such tags on one page must ignore all of them.<br />The copyright symbol that would be generated by its character entity is not recommended for legal notice in source code when the word 'Copyright' may be used instead, because the entity may be read in raw form, but use is up to the page author. The same concept applies to any intellectual property rights symbol for which a suitable alternative is available, such as for trademark or service mark.<br />ASCII text would not suffice when a name or notice legally may have to be in a non-Roman alphabet, but no alternative may yet exist in HTML5.<br />Search engine storage may impose a length limit, but, because of legal consequences, if the value's length exceeds a given limit the search index should retain or interpret none of it but only refer to it.<br />The content string may only be copied verbatim in its full length, referred to, or ignored. It may not be, for example, paraphrased, truncated, interpreted, or classified except in addition to being copied verbatim in its full length.<br />Ignoring shall not void, nullify, or alter any rights stated in such tag.<br />For the synonymy, ''IP'', ''IP-rights'', and ''IP-right'' are not reserved; while the abbreviation ''IP'' 'intellectual property' is common among attorneys in the U.S., page authors will more likely be computerate, and the abbreviation may be wanted for 'Internet Protocol'.
| Globrix property information: Number of bathrooms the property has
| [[Talk:MetaExtensions#rights:_why_reversion|Talk]]
| [http://content.globrix.com/web-tools/8-technical-guide/74-what-are-globrix-meta-tags-and-how-can-i-use-them FAQ About the Globrix meta tags.]
|
|  
| Incomplete proposal
| Proposal
| Lacks link to a spec


|-valign="top"  
|-valign="top"  
| subj-. . .
| globrix.bedrooms
| To classify by subject a page's content, a standard subject taxonomy that will be recognized by a search engine or directory will help. Because many such high-quality taxonomies exist, only a prefix is proposed. Over time, particular taxonomies, in print or online, may be recognized here and keywords assigned for each.<br />The keyword will be constructed case-insensitively with subkeywords in the form subj-[nationAbbrev]-[taxonomy]-[edition][-optionalSubedition], e.g., subj-US-MeSH-2009online (perhaps). After "subj-", the second subkeyword will identify the nation where the taxonomy is published or offered as an aid in identifying the taxonomy and does not limit the subject coverage; e.g., a taxonomy published in Japan may be ideal for classifying Canadian botany or Peruvian economy.<br />As subject values may vary between editions of one taxonomy, an edition and optionally a subedition is to be identified in the third and optionally the fourth subkeywords. The subedition, if any, is any update or revision occurring between editions, such that a value drawn from that edition and subedition is stable. The means of identifying edition and subedition should be included in the registration of a keyword.<br />Examples of taxonomies from the U.S. include MeSH (medical) and the Library of Congress Subject Headings.<br />The value identifying a subject for a Web page will be drawn from the cited taxonomy's edition and subedition.<br />If the value should have a style to prevent ambiguity in interpretation, that style is to be registered here for that keyword. Multiple values are expressed with multiple meta elements, one value for each, since comma-separation is probably not compatible with all taxonomies.<br />If a value requires case-sensitivity to prevent confusion, the entry here registering the keyword must accommodate that need with the needs of HTML 5 with an appropriate rule. To that end, a proposal to allow case-sensitivity in meta tags under some circumstances has been offered in the W3C bug reporting system.
| Globrix property information: Number of bedrooms the property has
| [http://www.w3.org/Bugs/Public/show_bug.cgi?id=6854 W3C Bug 6854]
| [http://content.globrix.com/web-tools/8-technical-guide/74-what-are-globrix-meta-tags-and-how-can-i-use-them FAQ About the Globrix meta tags.]
| subject-. . .
|  
| Incomplete proposal
| Proposal
| Lacks link to a spec, tries to register a space of names instead of enumerated names


|-valign="top"
| globrix.condition
| Globrix property information: Condition of the property e.g. 'renovated'
| [http://content.globrix.com/web-tools/8-technical-guide/74-what-are-globrix-meta-tags-and-how-can-i-use-them FAQ About the Globrix meta tags.]
|
| Proposal


|-valign="top"  
|-valign="top"  
| nibbler-site-verification
| globrix.features
| Used to verify ownership of Nibbler site
| Globrix property information: Features of the property e.g. 'double glazing'
| [http://nibbler.silktide.com/ Nibbler site]
| [http://content.globrix.com/web-tools/8-technical-guide/74-what-are-globrix-meta-tags-and-how-can-i-use-them FAQ About the Globrix meta tags.]
|  
|  
| Incomplete proposal
| Proposal
| Claimed spec link does not link to a spec


|-valign="top"  
|-valign="top"  
| MSSmartTagsPreventParsing
| globrix.instruction
| Microsoft introduced into Internet Explorer 6 Beta a feature that some website designers wished to preclude from applying in order to prevent public misunderstanding of their websites. The feature allowed a browser to add information but at a risk that users wouldn't know that it wasn't supplied by the website. This keyword was provided by Microsoft for those of us who wanted it.<br />Its value was "TRUE". Microsoft spelled the keyword with some capitals and the value in all capitals but whether capitalization was required for either is unknown; some opinions vary. Since it need be understood by only one browser, and that one a beta version, full standards compliance should not be assumed, and original case may be required. (This tag is used by Google: "<meta content='true' name='MSSmartTagsPreventParsing'/>" appeared (with internal quote marks as singles) in the source code for <http://googleblog.blogspot.com/2009/04/listening-to-google-health-users.html>, as accessed 4-27-09.)<br />Microsoft has apparently removed this instruction from its website on the ground that the beta version is no longer available and is not supported, but that doesn't assure that some users aren't still using the beta browser, perhaps inadvertently. Therefore, designers may wish to continue using the keyword and value and they are preserved here.
| Globrix property information: Property to Buy or Rent
| e.g., [http://www.theregister.co.uk/2001/06/25/web_sites_banish_those_winxp/ The Register (U.K.)], [http://cc.uoregon.edu/cnews/summer2001/summer2001.pdf Univ. Oregon (U.S.) (PDF p. 18)], & [http://trillian.mit.edu/~jc/demo/SmartTagsOff.html John Chambers (U.S.) (job résumé near root)], all as accessed 4-19-09
| [http://content.globrix.com/web-tools/8-technical-guide/74-what-are-globrix-meta-tags-and-how-can-i-use-them FAQ About the Globrix meta tags.]
|  
|
| Incomplete proposal
| Proposal
| Lacks spec, potentially never minted by MS as a meta name (as opposed to a http-equiv value), even if minted by Microsoft, abandoned before shipping in any final release of IE
 
 
|-valign="top"
|-valign="top"  
| globrix.latitude
| wot-verification
| Globrix property information: The latitude of the property
| Used to verify ownership of WOT (Web Of Trust)
| [http://content.globrix.com/web-tools/8-technical-guide/74-what-are-globrix-meta-tags-and-how-can-i-use-them FAQ About the Globrix meta tags.]
| [http://www.mywot.com/ WOT site]
|
|  
| Proposal
| Incomplete proposal
 
| Claimed spec URL is not a spec URL
|-valign="top"  
 
| globrix.longitude
|}
| Globrix property information: The longitude of the property
 
| [http://content.globrix.com/web-tools/8-technical-guide/74-what-are-globrix-meta-tags-and-how-can-i-use-them FAQ About the Globrix meta tags.]
== Failed Proposals ==
|
 
| Proposal
{|border=1 cellpadding=4 cellspacing=0
 
! Keyword
|-valign="top"
! Brief description
| globrix.outsidespace
! Link to more details
| Globrix property information: External features of the property e.g. 'garden'
! Synonyms
| [http://content.globrix.com/web-tools/8-technical-guide/74-what-are-globrix-meta-tags-and-how-can-i-use-them FAQ About the Globrix meta tags.]
! Status
|
 
| Proposal
|-valign="top"
 
| cache
|-valign="top"
| This doesn't actually work; use HTTP headers instead.<br />Value must be "public", "private", or "no-cache". Intended as a simple way to tell user agents whether to store a copy of the document or not. An alternate for HTTP/1.1's cache-control; for publishers without access to modifying cache-control.
| globrix.parking
| none
| Globrix property information: Parking available for property e.g. 'parking for 2 cars'
| [http://content.globrix.com/web-tools/8-technical-guide/74-what-are-globrix-meta-tags-and-how-can-i-use-them FAQ About the Globrix meta tags.]
|
| Proposal
 
|-valign="top"
| globrix.period
| Globrix property information: Period of the property e.g. 'victorian terrace'
| [http://content.globrix.com/web-tools/8-technical-guide/74-what-are-globrix-meta-tags-and-how-can-i-use-them FAQ About the Globrix meta tags.]
|  
| Proposal
 
|-valign="top"  
| globrix.poa
| Globrix property information: If the property price is only available on application
| [http://content.globrix.com/web-tools/8-technical-guide/74-what-are-globrix-meta-tags-and-how-can-i-use-them FAQ About the Globrix meta tags.]
|  
| Proposal
 
|-valign="top"
| globrix.postcode
| Globrix property information: Postcode of the property
| [http://content.globrix.com/web-tools/8-technical-guide/74-what-are-globrix-meta-tags-and-how-can-i-use-them FAQ About the Globrix meta tags.]
|
| Proposal
 
|-valign="top"
| globrix.price
| Globrix property information: Price for the property
| [http://content.globrix.com/web-tools/8-technical-guide/74-what-are-globrix-meta-tags-and-how-can-i-use-them FAQ About the Globrix meta tags.]
|
| Proposal
 
|-valign="top"
| globrix.priceproximity
| Globrix property information: The region of the attached price e.g. 'guide price of'
| [http://content.globrix.com/web-tools/8-technical-guide/74-what-are-globrix-meta-tags-and-how-can-i-use-them FAQ About the Globrix meta tags.]
|
| Proposal
 
|-valign="top"
| globrix.tenure
| Globrix property information: The tenure of the property e.g. 'leasehold'
| [http://content.globrix.com/web-tools/8-technical-guide/74-what-are-globrix-meta-tags-and-how-can-i-use-them FAQ About the Globrix meta tags.]
|
| Proposal
 
|-valign="top"
| globrix.type
| Globrix property information: Type of property e.g. 'semi-detatched house'
| [http://content.globrix.com/web-tools/8-technical-guide/74-what-are-globrix-meta-tags-and-how-can-i-use-them FAQ About the Globrix meta tags.]
|
| Proposal
 
|-valign="top"
| globrix.underoffer
| Globrix property information: Indicates if the property is under offer
| [http://content.globrix.com/web-tools/8-technical-guide/74-what-are-globrix-meta-tags-and-how-can-i-use-them FAQ About the Globrix meta tags.]
|
| Proposal
 
|-valign="top"
| go-import
| Defines a remote source code location and version control scheme for the Go programming language's toolchain. Content format: <code>import-prefix vcs repo-root</code>.
| [http://golang.org/cmd/go/#hdr-Remote_import_path_syntax go tool documentation]
|
| Proposal
 
|-valign="top"
| google
| Multiple purposes:<br /><br />Used to declare text that should not be translated by the Google Translate plugin (&lt;meta name="google" value="notranslate"&gt; will declare the whole page should not be translated, while &lt;span class="notranslate"&gt; is for text or paragraph areas you wish to not be translated.<br /><br />Used "[t]o tell Google not to show a Sitelinks search box when your site appears in the search results" (implement with content="nositelinkssearchbox") (already in use).<br /><br />Presumably, multiple meta elements named "google" should all be parsed but this is may not have been explicitly specified anywhere.
| "notranslate": [http://googlewebmastercentral.blogspot.com/2007/12/answering-more-popular-picks-meta-tags.html Google blog post]<br /><br />"nositelinkssearchbox": [https://developers.google.com/structured-data/slsb-overview Google on Structured Data &gt; Sitelinks Search Box]
|
| Nontranslation: Proposal<br /><br />No Sitelinks search box: Proposed
 
|-valign="top"
| google-play-app
| Promoting Apps with Smart App Banners
| [http://jasny.github.io/jquery.smartbanner/] Smart banners for Google Apps
|
| Proposal
 
|-valign="top"
| google-site-verification
| Used to verify ownership for Webmaster Tools.
| [http://www.google.com/support/webmasters/bin/answer.py?hl=en&answer=79812 Google documentation]
|
| Proposal
 
|-valign="top"
| gwt:property
| Used to specify the locale client property
| [https://developers.google.com/web-toolkit/doc/latest/DevGuideI18nLocale Locales in GWT]
|
| Proposal
 
|-valign="top"
| handheldfriendly
| Informs the BlackBerry browser that the content contained within the document is designed for small screens.
| [https://developer.blackberry.com/html5/documentation/v1_0/handheldfriendly.html BlackBerry (handheldfriendly "largely obsolete")]
|
| Proposal
 
|-valign="top"
| icas.datetime
| A point or period of time associated with an event in the lifecycle of the resource represented in terms of an ICAS date and time format of unspecified information density (may include full, long, medium, short, or compressed forms).
| a preliminary specification in the aaticas group on LinkedIn (http://www.linkedin.com/groups/aaticas-4034149). after a period of review, a specification for AAT ICAS meta keywords for HTML(5) will be referenced on an AAT ICAS area of the aatideas.org web site.
|
| Proposal
 
|-valign="top"
| icas.datetime.abbr
| A point or period of time associated with an event in the lifecycle of the resource represented in terms of an ICAS abbreviated format such as "d2M03 t969".
| a preliminary specification in the aaticas group on LinkedIn (http://www.linkedin.com/groups/aaticas-4034149). after a period of review, a specification for AAT ICAS meta keywords for HTML(5) will be referenced on an AAT ICAS area of the aatideas.org web site.
|
| Proposal
 
|-valign="top"
| icas.datetime.day
| A point or period of time associated with an event in the lifecycle of the resource represented in terms of ICAS day-of-year format such as "2012 day 333 t969".
| a preliminary specification in the aaticas group on LinkedIn (http://www.linkedin.com/groups/aaticas-4034149). after a period of review, a specification for AAT ICAS meta keywords for HTML(5) will be referenced on an AAT ICAS area of the aatideas.org web site.
|
| Proposal
 
|-valign="top"
| icas.datetime.long
| A point or period of time associated with an event in the lifecycle of the resource represented in terms of ICAS long date format such as "UCN 12012 M03 Blue ❀ day 333 ❀ IDC zone(UT) t969 tt189". example <meta name="icas.datetime.long" content="UCN 12012 M03 Blue ❀ day 333 ❀ IDC zone(UT) t969 tt189"/>
| a preliminary specification in the aaticas group on LinkedIn (http://www.linkedin.com/groups/aaticas-4034149). after a period of review, a specification for AAT ICAS meta keywords for HTML(5) will be referenced on an AAT ICAS area of the aatideas.org web site.
|
| Proposal
 
|-valign="top"
| icbm
| Defines geographic position to which page is related to. The acronym stands for ICBM Intercontinental Ballistic Missile - an old, humorous allusion to the possible use of such coordinates.<br>Example:
<meta name="ICBM" content="47.0667, 15.4500" /><br />Like geo.position except for value syntax.
| [http://geourl.org/add.html GeoURL documentation]
|
| Proposal
 
|-valign="top"
| IE_RM_OFF
| If set to "true", disables Internet Explorer 11 Reading View button adjacent to address bar when the page is detected to have content suitable for Reading View. This is intended for pages that are not articles and are not intended to be read in IE 11 Reading View.
| [http://ie.microsoft.com/testdrive/browser/readingview/ Microsoft: Reading View Guidelines and Information] In the Code tab, at the bottom where Opt Out is read.
|
| Proposal
 
 
|-valign="top"
| itemsPerPage
| Used to identify the number of search results returned per page.
| [http://www.opensearch.org/Specifications/OpenSearch/1.1#Response_metadata_in_HTML.2FXHTML OpenSearch Specification]
|
| Proposal
 
|-valign="top"
| keywords-not
| Like keywords but instead keywords-not support Boolean NOT searches; useful for metaphors, satire/parody, and pages that say "this page is not about subject x" which therefore would be erroneously excluded by a NOT search against x.
| [http://brittlebit.org/specifications/html-meta-keywords-not/specification-for-html-meta-element-with-name-value-keywords-not.html BrittleBit.org spec]
|
| Proposal
 
|-valign="top"
| license
| Is used to to define the license under which a website is published.
| [https://faq.frontendnet.work/metatags/Miscellaneous/license Unofficial Documentation of license]
|
| Proposal
 
|-valign="top"
| license:uri
| Is used to to define the uri to the license, under which a website is published.
| [https://faq.frontendnet.work/metatags/Miscellaneous/licenseuri Unofficial Documentation of license:uri]
|
| Proposal
 
|-valign="top"
| meta_date
| The date used to indicate that the Metadata has been prepared and/or reviewed and approved by the Metadata Unit. Its purpose is administrative. (Used by "Autonomy".)
| [http://www.hc-sc.gc.ca/home-accueil/alt_formats/pacrb-dgapcr/pdf/Metadata_Application_Profile_2009.pdf Health Canada Web Metadata Application Profile March 2009 ]
|
| Proposal
 
|-valign="top"
| microtip
| Specifies the cryptocurrency address (bitcoin, etc.) for sending tips to the people responsible for creating this page's content. This tag is used by various browser plugins that want to compensate the site's creators. Since it's microtipping instead of micropayments, there is no need to specify an amount.<br>
Example:
<meta name="microtip" content="[bitcoin-address]">
Note: there can be multiple instances of this metatag on a page.
| For full specification, see: http://autotip.io/docs/microtip-meta-tag
|
| Proposal
 
|-valign="top"
| mobile-agent
| Specifies the mobile-compatible url of the web page.  Used by mobile browsers and search engines to redirect mobile phone visitors to the proper mobile page. <br>
The following properties can be used in the value of the content attribute:<br>url - The mobile-compatible url of the web page.<br>format - The format of the mobile page. An enum of "wml", "xhtml" and "html5".<br>Example:
<meta name="mobile-agent" content="format=html5; url=http://3g.sina.com.cn/">
| [http://open.shouji.baidu.com/?page=developer&action=pcandmo Baidu Mobile SEO]
|
| Proposal
 
|-valign="top"
| mobile-web-app-capable
| Sets whether a web application can be added standalone to a home screen and launched in fullscreen mode. Also proposed as a vendor-neutral version of apple-mobile-web-app-capable.
| [https://developers.google.com/chrome/mobile/docs/installtohomescreen Add to Homescreen - Google Chrome Mobile &mdash; Google Developers] (though a WHATWG or W3C spec would be preferred)
| apple-mobile-web-app-capable (vendor specific synonym)
| Proposal
 
|-valign="top"
| mobileoptimized
| Controls layout behavior in older versions of Internet Explorer (e.g., 6.5).
| [http://msdn.microsoft.com/en-us/library/bb431690.aspx Microsoft Windows Mobile 6.5 documentation]
|
| Proposal
 
|-valign="top"
| msapplication-config
| '''"Pinned Sites" in Windows 8'''
The "msapplication-config" metadata defines the path to a browser configuration file, letting you set pinned sites customizations (such as tile background, badge updates and notifications) with this external XML file rather than metadata within the HTML markup of webpages.
<meta name="msapplication-config" content="IEconfig.xml" />
'''Note'''
Without this metadata, IE11 looks for a default "browserconfig.xml" in the root directory of the server.
| [http://msdn.microsoft.com/en-us/library/ie/dn320426%28v=vs.85%29.aspx Browser configuration schema reference]
|
| Proposal
 
|-valign="top"
| msapplication-navbutton-color
| '''"Jump List" or "Pinned Sites" in Windows 7'''
The "msapplication-navbutton-color" metadata define the custom color of the Back and Forward buttons in the Pinned Site browser window. Any named color, or hex color value is valid.
<meta name="msapplication-navbutton-color" content="#FF3300" />
| [http://msdn.microsoft.com/en-us/library/gg491732(v=VS.85).aspx Declaring Pinned Site Metadata]
|
| Proposal
 
|-valign="top"
| msapplication-notification
| '''"Pinned Sites" and "Live Tiles" in Windows 8.1'''
Used to make pinned sites on the start screen into live tiles. Usage:
<META name="msapplication-notification" content="cycle=7;frequency=60;polling-uri=http://www.example.com/notifications.xml"  />
| [https://msdn.microsoft.com/en-us/library/ie/dn255024.aspx#msapplication-notification Pinned site metadata reference]
|
| Proposal
 
|-valign="top"
| msapplication-square150x150logo
| '''msapplication-square150x150logo'''
Specifies the image to use as the wide tile, which is 310x150 pixels at 100% scaling.
<meta name="msapplication-square150x150logo" content="images/logo.png">
'''Note'''  The '''msapplication-square150x150logo''' value is supported as of IE11 Preview and applies to tiles pinned to the Windows Start screen.
| [http://msdn.microsoft.com/en-us/library/ie/dn255024%28v=vs.85%29.aspx Pinned site metadata reference]
|
| Proposal
 
|-valign="top"
| msapplication-square310x310logo
| '''msapplication-square310x310logo'''
Specifies the image to use as the large tile, which is 310x310 pixels at 100% scaling.
<meta name="msapplication-square310x310logo" content="images/largelogo.png">
'''Note'''  The '''msapplication-square310x310logo''' value is supported as of IE11 Preview and applies to tiles pinned to the Windows Start screen.
| [http://msdn.microsoft.com/en-us/library/ie/dn255024%28v=vs.85%29.aspx Pinned site metadata reference]
|
| Proposal
 
|-valign="top"
| msapplication-square70x70logo
| '''msapplication-square70x70logo'''
Specifies the image to use as the small tile, which is 70x70 pixels at 100% scaling.
<meta name="msapplication-square70x70logo" content="images/tinylogo.png">
'''Note'''  The '''msapplication-square70x70logo''' value is supported as of IE11 Preview and applies to tiles pinned to the Windows Start screen.
| [http://msdn.microsoft.com/en-us/library/ie/dn255024%28v=vs.85%29.aspx Pinned site metadata reference]
|
| Proposal
 
|-valign="top"
| msapplication-starturl
| '''"Jump List" or "Pinned Sites" in Windows 7'''
The "msapplication-starturl" metadata contains the root URL of the application. The start URL can be fully qualified, or relative to the current document. Only HTTP and HTTPS protocols are allowed. If this element is missing, the address of the current page is used instead.
<meta name="msapplication-starturl" content="./" />
| [http://msdn.microsoft.com/en-us/library/gg491732(v=VS.85).aspx Declaring Pinned Site Metadata]
|
| Proposal
 
|-valign="top"
| msapplication-tap-highlight
| '''Link highlighting in Internet Explorer'''
The "msapplication-tap-highlight" meta tag can be used to disable automatic highlighting of tapped links in Internet Explorer. Applies to IE10 on Windows Phone 8 and IE11 on Windows 8.1.
<meta name="msapplication-tap-highlight" content="no" />
| [http://msdn.microsoft.com/en-us/library/ie/bg182645%28v=vs.85%29.aspx#tapHighlight Link highlighting]
|
| Proposal
 
|-valign="top"
| msapplication-task
| '''"Jump List" or "Pinned Sites" in Windows 7'''
Jump List items act as entry points into the website even when the browser is not running. A Jump List can contain commonly used destinations and tasks. Some items apply to the whole site, and some apply only to specific users.
For example, to add a single task called "Check Order Status" specify a meta element in the head of your webpage, as follows:
<META name="msapplication-task" content="name=Check Order Status;
      action-uri=./orderStatus.aspx?src=IE9;
      icon-uri=./favicon.ico"  />
| [http://msdn.microsoft.com/en-us/library/gg491725(v=vs.85).aspx Tasks in Jump List]
|
| Proposal
 
|-valign="top"
| msapplication-TileColor
| The "msapplication-TileColor" metadata define the background color of a tile in Pinned Sites in Windows 8. The tile color can be specified as a hex RGB color using CSS’s #rrggbb notation, via CSS color names, or by the CSS rgb() function.
<meta name="msapplication-TileColor" content="#d83434"/>
| [http://blogs.msdn.com/b/ie/archive/2012/06/08/high-quality-visuals-for-pinned-sites-in-windows-8.aspx High Quality Visuals for Pinned Sites in Windows 8]
|
| Proposal
 
|-valign="top"
| msapplication-TileImage
| The "msapplication-TileImage" metadata define the path to an image to be used as background for a tile in Pinned Sites in Windows 8. Tile images must be square PNGs 144px by 144px.
<meta name="msapplication-TileImage" content="images/benthepcguy-144.png" />
| [http://blogs.msdn.com/b/ie/archive/2012/06/08/high-quality-visuals-for-pinned-sites-in-windows-8.aspx High Quality Visuals for Pinned Sites in Windows 8]
|
| Proposal
 
|-valign="top"
| msapplication-tooltip
| '''"Jump List" or "Pinned Sites" in Windows 7'''
The "msapplication-tooltip" metadata provides additional tooltip text that appears when you hover over the Pinned Site shortcut in the Windows Start menu or on the desktop.
<meta name="msapplication-tooltip" content="Channel 9 Podcasts" />
| [http://msdn.microsoft.com/en-us/library/gg491732(v=VS.85).aspx Declaring Pinned Site Metadata]
|
| Proposal
 
|-valign="top"
| msapplication-wide310x150logo
| '''msapplication-wide310x150logo'''
Specifies the image to use as the medium tile, which is 150x150 pixels at 100% scaling.
<meta name="msapplication-wide310x150logo" content="images/widelogo.png">
'''Note'''  The '''msapplication-wide310x150logo''' value is supported as of IE11 Preview and applies to tiles pinned to the Windows Start screen.
| [http://msdn.microsoft.com/en-us/library/ie/dn255024%28v=vs.85%29.aspx Pinned site metadata reference]
|
| Proposal
 
|-valign="top"
| msapplication-window
| '''"Jump List" or "Pinned Sites" in Windows 7'''
The "msapplication-window" metadata sets the initial size of the Pinned Site window when it is launched for the first time. However, if the user adjusts the size of the window, the Pinned Site retains the new dimensions when it is launched again.
The following properties can be used in the value of the <code>content</code> attribute:
* width - The window width in pixels. The minimum value is 800.
* height - The window height in pixels. The minimum value is 600.
<meta name="msapplication-window" content="width=1024;height=768" />
| [http://msdn.microsoft.com/en-us/library/gg491732(v=VS.85).aspx Declaring Pinned Site Metadata]
|
| Proposal
 
|-valign="top"
| MSSmartTagsPreventParsing
| Prevent a Microsoft browser from adding a certain kind of content to a page because users could be confused into thinking the added content was part of the original page. (It's likely only relatively few copies of the browser, a beta release never finalized, are still in the installed Win base, but the base is so large that even relatively few would still be a significant absolute quantity.)<br /><br />This tag is used by Google: [https://support.google.com/customsearch/answer/2595557?hl=en Custom Search Help: Meta Tags], as accessed 1-8-16. And "<meta content='true' name='MSSmartTagsPreventParsing'/>" appeared (with internal quote marks as singles) in the source code for <[http://googleblog.blogspot.com/2009/04/listening-to-google-health-users.html]>, as accessed 4-27-09.
| [http://brittlebit.org/specifications/html-meta-mssmarttagspreventparsing/specification-for-html-meta-element-with-name-value-mssmarttagspreventparsing.html BrittleBit.org spec]
|
| Proposal
 
|-valign="top"
| msvalidate.01
| One of the verification elements used by Bing.
| [http://onlinehelp.microsoft.com/en-us/bing/hh204490.aspx Bing Webmaster Tools]
|
| Proposal
 
|-valign="top"
| nonfiction
| To reduce the "fake news" problem, this lets well-meaning page authors label satire and parody appropriately in metatags although unlabeled in content (not explicitly labeling being common in satire and parody). Characterize the principal content of the page as nonfiction, fiction, mixed, or other. This way, other websites and users needn't be fooled.
| [http://brittlebit.org/specifications/html-meta-nonfiction/specification-for-html-meta-element-with-name-value-nonfiction.html BrittleBit.org spec]
| fiction (antonym; see spec for usage)
| Proposal
 
|-valign="top"
| norton-safeweb-site-verification
| Used to verify ownership of Website for Norton SafeWeb.
| [http://safeweb.norton.com/help/site_owners#verification_tips Norton SafeWeb Help Documentation]
|
| Proposal
 
|-valign="top"
| origin
| The ''origin'' meta tag is used to indicate the original source of a document.
| [https://doc.ohreally.nl/metatag-origin The ''origin'' meta tag]
|
| Proposed
 
|-valign="top"
| origin-trials
| Used to enable experimental browser features for sites which are registered to participate in experimental trials.
| [https://docs.google.com/document/d/1v5fi0EUV_QHckVHVF2K4P72iNywnrJtNhNZ6i2NPt0M/edit?usp=sharing Experimental Framework Trial Token Structure]
|
| Proposal
 
|-valign="top"
| p:domain_verify
| Used to register a site's domain with Pinterest as a "verified domain".
Example:
  <code><meta name="p:domain_verify" content="5dd1c5f2db0ac0b521f08d56b4cd271b"></code>
| [https://help.pinterest.com/entries/22488487-Verify-with-HTML-meta-tags Pinterest Help Article]
|
| Proposal
 
|-valign="top"
| page-version
| When a page uploaded two or more times with the same last-modification date (per dc.modified, dcterms.modified, or article:modified_time metatag), distinguishing different uploads even on the same date can be done with the page-version metatag.
| [http://brittlebit.org/specifications/html-meta-page-version/specification-for-html-meta-element-with-name-value-page-version.html BrittleBit.org spec]
|
| Proposal
 
|-valign="top"
| pingdom
| Used by Pingdom monitoring services as a heartbeat verification. The heartbeat service will only consider the request successful if it contains the "pingdom" meta tag, with the content set according to a per-customer key.
Example:
<code><meta name="pingdom" content="6bh3nxnx"/></code>
|
|
| Proposal
 
|-valign="top"
| pinterest
| Used to block pinterest from linking to content on the URL.
Example:
<code><meta name="pinterest" content="nopin"/></code>
| [https://support.pinterest.com/entries/21101932-what-if-i-don-t-want-images-from-my-site-to-be-pinned Pinterest Help Article]
|
| Proposal
 
|-valign="top"
| prism:alternateTitle
| An alternate title or alternate headline for a resource that may be used in a table of contents, a popup etc. and can vary with platform.
| [http://www.prismstandard.org/specifications/3.0/PRISM_Basic_Metadata_3.0.htm PRISM Basic Metadata Specification V3.0]
|
| Proposal
 
|-valign="top"
| pro
| Signify expertise as judged by an authority. Counterpart to pro-auth (which see). Useful to search engines and Web directories.
| [http://brittlebit.org/specifications/html-meta-pro/specification-for-html-meta-element-with-name-value-pro.html BrittleBit.org spec]
|
| Proposal
 
|-valign="top"
| pro-auth
| Signify an authority, subject to search engine's or directory's judgment of importance and credibility (the judgment could be by a human working for a search engine), so the authority's listing of experts can carry weight, making search results more useful.<br /><br />Counterpart to pro (which see). Supported also by pro-auth-field (which see) and pro-auth-fragment (which see).
| [http://brittlebit.org/specifications/html-meta-pro-auth/specification-for-html-meta-element-with-name-value-pro-auth.html BrittleBit.org spec]
|
| Proposal
 
|-valign="top"
| pro-auth-field
| Signify an authority's claimed field of expertise, importance and validity to be judged by search engine or directory. Supports pro-auth (which see).
| [http://brittlebit.org/specifications/html-meta-pro-auth-field/specification-for-html-meta-element-with-name-value-pro-auth-field.html BrittleBit.org spec]
|
| Proposal
 
|-valign="top"
| pro-auth-fragment
| Signify which links from authority are links to experts, as distinct from other links. Supports pro-auth (which see).
| [http://brittlebit.org/specifications/html-meta-pro-auth-fragment/specification-for-html-meta-element-with-name-value-pro-auth-fragment.html BrittleBit.org spec]
|
| Proposal
 
|-valign="top"
| rating
| The Restricted to Adults label (RTA) provides a way for adult oriented websites to indicate that their content is off limits to children. RTA was introduced in 2006 and is currently used by a large number of adult web content providers. RTA is recognized by all major parental control filters.
Example:
<meta name="RATING" content="RTA-5042-1996-1400-1577-RTA" />
| [http://www.rtalabel.org/index.php?content=howto RTA documentation]
|
| Proposal
 
|-valign="top"
| referrer
| Controls whether the user agent includes the Referer header in HTTP requests originating from this document
| [https://www.w3.org/TR/referrer-policy/ Referrer Policy]
| referer
| Proposal
 
|-valign="top"
| RepostUsAPIKey
| Used to verify ownership of Website for Repost syndication service
| [http://www.repost.us/meta-headers-used-by-repost/ Meta Headers used by Repost]
|
| Proposal
 
|-valign="top"
| ResourceLoaderDynamicStyles
| [[mw:|MediaWiki]]'s [[mw:ResourceLoader|ResourceLoader]] uses this name with <code>content</code> set to the empty string.  The purpose is to mark the DOM position before which dynamic styles should be added.
| [[mw:ResourceLoader/ResourceLoaderDynamicStyles specification|ResourceLoaderDynamicStyles]]
|
| Proposal
|-valign="top"
 
| review_date
| The date a resource is scheduled for review by content creator in order to determine if it should be archived, updated or retained as is.
| [http://www.hc-sc.gc.ca/home-accueil/alt_formats/pacrb-dgapcr/pdf/Metadata_Application_Profile_2009.pdf Health Canada Web Metadata Application Profile March 2009 ]
[http://lists.w3.org/Archives/Public/www-archive/2014Feb/att-0020/dnd_ims-6001-1-2-eng.pdf IMS 6001-1-2, Metadata for Recordkeeping and Web Content]
|
| Proposal
 
|-valign="top"
| revision
| The revision of this page as reported by an underlying Version Control System. This is a free format string.
| [https://github.com/krallin/meta-revision Meta Revision Specification]
|
| Proposal
 
|-valign="top"
| revisit-after
| revisit-after is used to tell search engines how often to recrawl the page. To our knowledge only one search engine has ever supported it, and that search engine was never widely used — at this point, it is nothing more than a good luck charm.
| [http://code.google.com/webstats/2005-12/metadata.html Google documentation]
|
| Proposal
 
|-valign="top"
| rights
| Assert legal rights for the page in a machine-parsable format. Rights could include those in copyright, for trade secrets, and in other intellectual property.<br /><br/>[[Talk:MetaExtensions#rights:_why_reversion|Talk]]
| [http://brittlebit.org/specifications/html-meta-rights/specification-for-html-meta-element-with-name-value-rights.html BrittleBit.org spec]
|
| Proposal
 
|-valign="top"
| rights-standard
| The purpose is to enable search engines and other cataloging services to compile the types of rights allocated to the work. (Does any search engine actually implement this? [[User:Hsivonen|hsivonen]] 07:34, 14 July 2011 (UTC))
 
'''This keyword does not provide, remove or alter any legal protections or designations.'''
 
Format:
<pre><meta name="rights-standard" content="element id;rights" /></pre>
 
* element id - the HTML Element ID of the item these rights apply to
* rights - what rights are assigned to the item
** "pd" - Public domain
** "cc by-sa" - Creative Commons Attribution
** "cc by-nd" - Creative Commons  NoDerivs
** "cc by-nc" - Creative Commons Attribution-NonCommercial
** "cc by-nc-sa" - Creative Commons Attribution-NonCommercial-ShareAlike
** "cc by-nc-nd" - Creative Commons Attribution-NonCommercial-NoDerivs
 
| [http://sites.google.com/site/metarightsstandard/ Spec]
| Redundant with [http://www.whatwg.org/specs/web-apps/current-work/multipage/microdata.html#licensing-works Microdata vocabulary for licensing works].
| Proposal
 
|-valign="top"
| robots
| A comma-separated list of operators explaining how search engine crawlers should treat the content. This meta name is already supported by every popular search engine.<br />Possible values are "noarchive" to prevent cached versions, "noindex" to prevent indexing, and "nofollow" works as the link rel value with the same name.<br />The content value "NOODP" has been offered elsewhere, so I'm proposing it here. It blocks robots from using [http://www.dmoz.org Open Directory Project] descriptions of a website instead of Web pages' own meta descriptions. It may have been introduced by Microsoft.<br />The content value "NOYDIR" has been offered by Yahoo, so I'm proposing it here. It blocks Yahoo's robot from using the Yahoo directory's descriptions of a website instead of Web pages' own meta descriptions. Whether any other robot supports this is unknown but possibly no other search engine uses Yahoo's directory anyway.
| [http://www.robotstxt.org/meta.html About the Robots &lt;META&gt; tag]; NOODP value: [http://www.google.com/support/webmasters/bin/answer.py?hl=en&answer=35264 Google], [http://help.yahoo.com/l/us/yahoo/search/indexing/indexing-11.html Yahoo], NOYDIR value: [http://ysearchblog.com/2007/02/28/yahoo-search-support-for-noydir-meta-tags-and-weather-update/ Yahoo], as accessed 4-28-09
| baiduspider (for targeting Baidu or Baiduspider only)<br />citeseerxbot (for targeting CiteSeerX only)<br />googlebot (for targeting Googlebot only)<br />googlebot-mobile (for targeting Googlebot-Mobile)<br />ia_archive (for targeting Internet Archive (Wayback Machine) or Alexa only)<br />msnbot (for targeting Microsoft or Bing only)<br />slurp (for targeting Yahoo or slurp only)<br />teoma (for targeting TEOMA or Ask.com only)
| Proposal
 
|-valign="top"
| rpuPlugin
| Version of installed  Repost syndication service plugin
| [http://www.repost.us/meta-headers-used-by-repost/ Meta Headers used by Repost]
|
| Proposal
 
|-valign="top"
| rqid
| Request identifier of request that generated this page.
| [http://wiki.whatwg.org/wiki/RequestID RequestID]
|
| Proposal
 
|-valign="top"
| shareaholic:analytics
| Enables or disables Shareaholic Analytics for use with the Shareaholic Content Amplification system
| [https://github.com/shareaholic/shareaholic-api-docs/blob/master/shareaholic_meta_tags.md Shareaholic CAS Specification]
|
| Proposal
 
|-valign="top"
| shareaholic:article_author
| A URL to the profile of the author of the content of the webpage for use with the Shareaholic Content Amplification system
| [https://github.com/shareaholic/shareaholic-api-docs/blob/master/shareaholic_meta_tags.md Shareaholic CAS Specification]
|
| Proposal
 
|-valign="top"
| shareaholic:article_author_name
| Contains the name of the author of the content of the webpage for use with the Shareaholic Content Amplification system
| [https://github.com/shareaholic/shareaholic-api-docs/blob/master/shareaholic_meta_tags.md Shareaholic CAS Specification]
|
| Proposal
 
|-valign="top"
| shareaholic:article_modified_time
| When the article was last modified for use with the Shareaholic Content Amplification system
| [https://github.com/shareaholic/shareaholic-api-docs/blob/master/shareaholic_meta_tags.md Shareaholic CAS Specification]
|
| Proposal
 
|-valign="top"
| shareaholic:article_published_time
| When the article was first published for use with the Shareaholic Content Amplification system
| [https://github.com/shareaholic/shareaholic-api-docs/blob/master/shareaholic_meta_tags.md Shareaholic CAS Specification]
|
| Proposal
 
|-valign="top"
| shareaholic:article_visibility
| Specifies whether a webpage should be publicly recommendable for use with the Shareaholic Content Amplification system
| [https://github.com/shareaholic/shareaholic-api-docs/blob/master/shareaholic_meta_tags.md Shareaholic CAS Specification]
|
| Proposal
 
|-valign="top"
| shareaholic:drupal_version
| Specifies Shareaholic for Drupal module version for use with the Shareaholic Content Amplification system
| [https://github.com/shareaholic/shareaholic-api-docs/blob/master/shareaholic_meta_tags.md Shareaholic CAS Specification]
|
| Proposal
 
|-valign="top"
| shareaholic:image
| An image URL which represents your webpage for use with the Shareaholic Content Amplification system
| [https://github.com/shareaholic/shareaholic-api-docs/blob/master/shareaholic_meta_tags.md Shareaholic CAS Specification]
|
| Proposal
 
|-valign="top"
| shareaholic:keywords
| Keywords associated with the content of a webpage for use with the Shareaholic Content Amplification system
| [https://github.com/shareaholic/shareaholic-api-docs/blob/master/shareaholic_meta_tags.md Shareaholic CAS Specification]
|
| Proposal
 
|-valign="top"
| shareaholic:language
| Language of the content of the webpage for use with the Shareaholic Content Amplification system
| [https://github.com/shareaholic/shareaholic-api-docs/blob/master/shareaholic_meta_tags.md Shareaholic CAS Specification]
|
| Proposal
 
|-valign="top"
| shareaholic:outstreamads
| Enables or disables Shareaholic Outstream Ads for use with the Shareaholic Content Amplification system
| [https://github.com/shareaholic/shareaholic-api-docs/blob/master/shareaholic_meta_tags.md Shareaholic CAS Specification]
|
| Proposal
 
|-valign="top"
| shareaholic:shareable_page
| Specifies whether a webpage should be publicly shareable for use with the Shareaholic Content Amplification system
| [https://github.com/shareaholic/shareaholic-api-docs/blob/master/shareaholic_meta_tags.md Shareaholic CAS Specification]
|
| Proposal
 
|-valign="top"
| shareaholic:site_id
| Shareaholic Site ID for the website for use with the Shareaholic Content Amplification system
| [https://github.com/shareaholic/shareaholic-api-docs/blob/master/shareaholic_meta_tags.md Shareaholic CAS Specification]
|
| Proposal
 
|-valign="top"
| shareaholic:site_name
| The name which should be displayed for the overall site for use with the Shareaholic Content Amplification system
| [https://github.com/shareaholic/shareaholic-api-docs/blob/master/shareaholic_meta_tags.md Shareaholic CAS Specification]
|
| Proposal
 
|-valign="top"
| shareaholic:title
| Title associated with the content of a webpage for use with the Shareaholic Content Amplification system
| [https://github.com/shareaholic/shareaholic-api-docs/blob/master/shareaholic_meta_tags.md Shareaholic CAS Specification]
|
| Proposal
 
|-valign="top"
| shareaholic:url
| The canonical URL of your webpage that will be used as its permanent ID for use with the Shareaholic Content Amplification system
| [https://github.com/shareaholic/shareaholic-api-docs/blob/master/shareaholic_meta_tags.md Shareaholic CAS Specification]
|
| Proposal
 
|-valign="top"
| shareaholic:wp_version
| Specifies Shareaholic for WordPress plugin version for use with the Shareaholic Content Amplification system
| [https://github.com/shareaholic/shareaholic-api-docs/blob/master/shareaholic_meta_tags.md Shareaholic CAS Specification]
|
| Proposal
 
|-valign="top"
| signet:authors
| Authors of a page for use with javascript signet library
| [https://github.com/HubSpot/signet/blob/master/README.md Signet Revision Specification]
|
| Proposal
 
|-valign="top"
| signet:links
| links to related pages, for use with the javascript signet library
| [https://github.com/HubSpot/signet/blob/master/README.md Signet Revision Specification]
|
| Proposal
 
|-valign="top"
| skype_toolbar
| Prevents the Skype browser extension from automatically seeking through the page and replacing telephone numbers (or any number the program's algorithm thinks is a telephone number) with its own custom presentation that allows direct invocation of the Skype program to call the telephone number.
 
Example:
<meta name="skype_toolbar" content="skype_toolbar_parser_compatible" />
| [http://skype.otherlinks.co.uk/page.asp?id=toolbar_number_formatting Skype Info]
|
| Proposal
 
|-valign="top"
| startIndex
| Used to identify the index of the first search result in the current set of search results.
| [http://www.opensearch.org/Specifications/OpenSearch/1.1#Response_metadata_in_HTML.2FXHTML OpenSearch Specification]
|
| Proposal
 
|-valign="top"
| startver
| Used to verify WebApps for JokeNetwork's Start!-WebApp
| [https://faq.frontendnet.work/metatags/Deprecated/start JokeNetwork's Start Documentation]
|
| Proposal
 
|-valign="top"
| subject-datetime
| Identify the principal datetime ranges of the subject of the page’s content, such as the dates of an historical event.
| [http://brittlebit.org/specifications/html-meta-subject-datetime/specification-for-html-meta-element-with-name-value-subject-datetime.html BrittleBit.org spec]
| page-datetime<br /><br />datetime-coverage<br />datetime-coverage-start<br />datetime-coverage-end<br />datetime-coverage-vague<br />
| Proposal
 
|-valign="top"
| subject-system
| Where another metatag provides a subject for the page, that subject should be selected in accordance with a standard system for classifying subjects, such as one used for academic or public libraries of books. This metatag identifies the system in use for the current page, using a standard controlled vocabulary of system identifiiers.
| [http://brittlebit.org/specifications/html-meta-subject-system/specification-for-html-meta-element-with-name-value-subject-system.html BrittleBit.org spec]
| subj-.&nbsp;.&nbsp;. or subj-* (namespace not approved thus synonym would be "subj-" plus whatever is after hyphen in token)
| Proposal
 
|-valign="top"
| supported-media
| Indicates the range of media for which the page's viewing is supported. Not intended for use by browsers, but rather by referrers that make use of crawl data.
| [https://github.com/google/webpackager/blob/master/docs/supported_media.md supported-media spec]
|
| Proposal
 
|-valign="top"
| theme-color
| Indicates a color associated with the web site's theme. Web browsers might use this color to theme their UI to be consistent with the web site's color scheme.<br>
Usage: <code><meta name="theme-color" content="papayawhip"></code>
| [https://html.spec.whatwg.org/multipage/semantics.html#meta-theme-color Defined in HTML]
|
| Standard
 
|-valign="top"
| thumbnail
| The full URL of a file that provides a thumbnail for the HTML page.<br /><br />(Note: This violates HTML5, section 4.2.5.2, which says this, because the value is a URL, must be a link element and not a meta element, but Google already recommends and parses this as a meta element.)
| [https://support.google.com/customsearch/answer/1626955?hl=en Google page], as accessed Jan. 2, 2016. Original date unknown.
|
| Proposed
 
|-valign="top"
| topper
| Notify website visitors of later changes; easier for website authors to maintain than RSS or Atom.
| [http://brittlebit.org/specifications/html-meta-topper-topper-major-topper-minor/specification-for-html-meta-element-with-name-values-topper-topper-major-and-topper-minor.html BrittleBit.org spec]
|
| Proposal
 
|-valign="top"
| topper-major
| Limit use of topper to major changes.
| [http://brittlebit.org/specifications/html-meta-topper-topper-major-topper-minor/specification-for-html-meta-element-with-name-values-topper-topper-major-and-topper-minor.html BrittleBit.org spec]
|
| Proposal
 
|-valign="top"
| topper-minor
| In use of topper, include minor changes.
| [http://brittlebit.org/specifications/html-meta-topper-topper-major-topper-minor/specification-for-html-meta-element-with-name-values-topper-topper-major-and-topper-minor.html BrittleBit.org spec]
|
| Proposal
 
|-valign="top"
| totalResults
| Used to identify the number of search results available for the current search.
| [http://www.opensearch.org/Specifications/OpenSearch/1.1#Response_metadata_in_HTML.2FXHTML OpenSearch Specification]
|
| Proposal
 
|-valign="top"
| translator
| The ''translator'' meta tag is used to give credit to, and provide contact info for, the translator of a document.
| [https://doc.ohreally.nl/metatag-translator The ''translator'' meta tag]
|
| Proposed
 
|-valign="top"
| twitter:app:country
| If your application is not available in the US App Store, you must set this value to the two-letter country code for the App Store that contains your application.
|
|
| Proposal
 
|-valign="top"
| twitter:app:id:googleplay
| String value, and should be the numeric representation of your app ID in Google Play.
|
|
| Proposal
 
|-valign="top"
| twitter:app:id:ipad
| String value, should be the numeric representation of your app ID in the App Store.
|
|
| Proposal
 
|-valign="top"
| twitter:app:id:iphone
| String value, should be the numeric representation of your app ID in the App Store.
|
|
| Proposal
 
|-valign="top"
| twitter:app:name:googleplay
| Name of your Android app
|
|
| Proposal
 
|-valign="top"
| twitter:app:name:ipad
| Name of your iPad optimized app
|
|
| Proposal
 
|-valign="top"
| twitter:app:name:iphone
| Name of your iPhone app
|
|
| Proposal
 
|-valign="top"
| twitter:app:url:googleplay
| Your app's custom URL scheme.
|
|
| Proposal
 
|-valign="top"
| twitter:app:url:ipad
| Your app's custom URL scheme.
|
|
| Proposal
 
|-valign="top"
| twitter:app:url:iphone
| Your app's custom URL scheme.
|
|
| Proposal
 
|-valign="top"
| twitter:card
| The card type, which will be one of "summary", "photo", "app", or "player".
|
|
| Proposal
 
|-valign="top"
| twitter:creator
| @username for the content creator / author.
|
|
| Proposal
 
|-valign="top"
| twitter:creator:id
| Twitter ID for the content creator / author.
|
|
| Proposal
 
|-valign="top"
| twitter:data1
| String value; value for labels such as price, items in stock, sizes, etc
|
|
| Proposal
 
|-valign="top"
| twitter:data2
| String value; value for labels such as price, items in stock, sizes, etc
|
|
| Proposal
 
|-valign="top"
| twitter:description
| A description of the content in a maximum of 200 characters.
|
|
| Proposal
 
|-valign="top"
| twitter:domain
| Short URL assigned by Twitter to a website.
|
|
| Proposal
 
|-valign="top"
| twitter:image
| A URL to the image representing the content.
|
|
| Proposal
 
|-valign="top"
| twitter:image0
| A URL to the image representing the first photo in your gallery.
|
|
| Proposal
 
|-valign="top"
| twitter:image1
| A URL to the image representing the second photo in your gallery.
|
|
| Proposal
 
|-valign="top"
| twitter:image2
| A URL to the image representing the third photo in your gallery.
|
|
| Proposal
 
|-valign="top"
| twitter:image3
| A URL to the image representing the fourth photo in your gallery.
|
|
| Proposal
 
|-valign="top"
| twitter:image:height
| The height of the image representing the content.
|
|
| Proposal
 
|-valign="top"
| twitter:image:src
| URL of image to use in the card. Image must be less than 1MB in size.
|
|
| Proposal
 
|-valign="top"
| twitter:image:width
| The width of the image representing the content.
|
|
| Proposal
 
|-valign="top"
| twitter:label1
| String value; label such as price, items in stock, sizes, etc
|
|
| Proposal
 
|-valign="top"
| twitter:label2
| String value; label such as price, items in stock, sizes, etc
|
|
| Proposal
 
|-valign="top"
| twitter:player
| HTTPS URL to iframe player. This must be a HTTPS URL which does not generate active mixed content warnings in a web browser
|
|
| Proposal
 
|-valign="top"
| twitter:player:height
| Height of IFRAME specified in twitter:player in pixels
|
|
| Proposal
 
|-valign="top"
| twitter:player:stream
| URL to raw stream that will be rendered in Twitter's mobile applications directly
|
|
| Proposal
 
|-valign="top"
| twitter:player:stream:content_type
| The MIME type/subtype combination that describes the content contained in twitter:player:stream
|
|
| Proposal
 
|-valign="top"
| twitter:player:width
| Width of IFRAME specified in twitter:player in pixels
|
|
| Proposal
 
|-valign="top"
| twitter:site
| @username for the website used in the card footer.
|
|
| Proposal
 
|-valign="top"
| twitter:site:id
| Twitter ID for the website used in the card footer.
|
|
| Proposal
 
|-valign="top"
| twitter:title
| The title of the content as it should appear in the card.
|
|
| Proposal
 
|-valign="top"
| twitter:url
| Canonical URL of the card content.
|
|
| Proposal
 
|-valign="top"
| typemetal.formatprefs
| Per-file HTML formatting preferences used by the TypeMetal HTML editor
| [http://coherencelabs.com/typemetal/manual/typemetal-custom-metadata.html TypeMetal User Guide]
|
| Proposal
 
|-valign="top"
| verify-v1
| Superseded by google-site-verification. Legacy verification for Google Sitemaps.
| [http://sitemaps.blogspot.com/2006/05/more-about-meta-tag-verification.html Inside Google Sitemaps: More about meta tag verification]
|
| Proposal
 
|-valign="top"
| version
| The version of a web application according to the [http://semver.org/ Semantic Versioning] specification<br>
Example:
<code><meta name="version" content="0.1.0+1"></code>
| [https://github.com/dvorapa/meta-version Documentation]
|
| Proposal
 
|-valign="top"
| vfb-version
| Specifies a Visual Form Builder plugin version for Wordpress.
| [http://wordpress.org/plugins/visual-form-builder/ Visual Form Builder Documentation and specs]
|
| Proposal
 
|-valign="top"
| <span id="viewport">viewport</span>
| Provides a way for documents to specify (using markup rather than CSS) the size, zoom factor, and orientation of the viewport that is used as the base for the document's [http://www.w3.org/TR/CSS21/visudet.html#containing-block-details initial containing block]. The following properties can be used in the value of the <code>content</code> attribute:
* width
* height
* initial-scale
* minimum-scale
* maximum-scale
* user-scalable
Examples:
<meta name="viewport" content="initial-scale=1.0">
<meta name="viewport" content="width=480, initial-scale=2.0, user-scalable=1">
| [http://dev.w3.org/csswg/css-device-adapt/#viewport-meta CSS Device Adaptation]
|
| Proposal
 
|-valign="top"
| web_author
| Credits the developer(s) responsible for the technical design of a website.
| [http://www.metatags.info/meta_name_webauthor Documentation]
| [https://sites.google.com/site/metadesignerspec/ designer] - for visual presentation
| Proposal
 
|-valign="top"
| witget
| Used to verify ownership for Witget.com.
Example <meta name="witget" content="XXXXXXXXXXXXXXXXXXXXXX">
| [http://support.witget.com/topic/435278-prostaya-ustanovka-skripta/ Witget manual]
|
| Proposal
 
|-valign="top"
| wot-verification
| Used to verify ownership of WOT (Web Of Trust)
| [http://www.mywot.com/wiki/Verify_your_website WOT's verify your site wiki page]
|
| Proposal
 
|-valign="top"
| wt.ac
| '''Advertising Click parameter'''
When a visitor to your site clicks on an ad, that action is referred to as an Ad Click. The following META tag tracks advertising clicks:
<META NAME="WT.ac" CONTENT="name">
Defines the name of the advertisement clicked to reach a particular web page. The Ad Click must contain an external redirect back to the client. The redirect needs to include the necessary code to generate a hit to the SDC server. You can designate multiple Advertising Clicks using semicolons.
Examples:
<a href="file111.html?WT.ac=CONTENT111">
<a href="file222.html?WT.ac=CONTENT222">
The name of the advertisement clicked to reach a particular web page. To capture this information with DCS, the Advertising Click must contain an external redirect back to the client. The redirect needs to
 
include the necessary code to generate a hit to the DCS. The maximum length for each name is 64 bytes.
| [http://product.webtrends.com/WRC/OnDemand/ResourceCenter/rc/Library/PDF/IGOD/WebTrendsAnalyticsOnDemandImplementationGuide.pdf Webtrends Parameters]
|
| Proposal
 
|-valign="top"
| wt.ad
| '''Advertising View parameter'''
Visitors often view advertisements that they do not necessarily click on. You can use On-Site Advertising to determine the number of visitors to your web site who view particular ads. With this feature you can produce advertising reports for each of your clients.
If you are selling advertising space on your web site, for example, you can collect traffic statistics to help determine pricing schedules.
The following META tag tracks advertising views:
<meta name="WT.ad" content="My content">
An Ad View occurs when a visitor views a page containing an ad. An ad is a link or graphic that contains an Ad Click parameter in the query portion of it's URL.
| [http://product.webtrends.com/WRC/OnDemand/ResourceCenter/rc/Library/PDF/IGOD/WebTrendsAnalyticsOnDemandImplementationGuide.pdf Webtrends Parameters]
|
| Proposal
 
|-valign="top"
| wt.cg_n
| '''Name of the Content Group'''
Used to configure the appropriate Webtrends advanced feature. These are just some of the more popular ones. These appear in your META tags.  – showing you the web page, the source (meta tag), the log files entry and the subsequent WT report.
Example:
<meta name="wt.cg_n" content="My content">
| [http://product.webtrends.com/WRC/OnDemand/ResourceCenter/rc/Library/PDF/IGOD/WebTrendsAnalyticsOnDemandImplementationGuide.pdf Webtrends Parameters]
|
| Proposal
 
|-valign="top"
| wt.cg_s
| '''Name of Content Sub-Group'''
Used to configure the appropriate Webtrends advanced feature. These are just some of the more popular ones. These appear in your META tags.  – showing you the web page, the source (meta tag), the log files entry and the subsequent WT report.
Example:
<meta name="wt.cg_s" content="My content">
| [http://product.webtrends.com/WRC/OnDemand/ResourceCenter/rc/Library/PDF/IGOD/WebTrendsAnalyticsOnDemandImplementationGuide.pdf Webtrends Parameters]
|
| Proposal
 
|-valign="top"
| wt.mc_id
| '''Identifies the ID of the marketing campaign'''
To attract new students, a university launches a marketing campaign by sending recruitment email to all graduating high school seniors in a metropolitan area. The email links to a special landing page in the university’s web site, containing the following META tag to track marketing campaigns.
Example:
<META NAME="WT.mc_id" CONTENT="1X2GG34">
You may use this parameter on the URL.
Example:
<a href="link?WT.mc_id=1X2GG34">
The Campaign ID 1X2GG34 represents recruits to be contacted by email
| [http://product.webtrends.com/WRC/OnDemand/ResourceCenter/rc/Library/PDF/IGOD/WebTrendsAnalyticsOnDemandImplementationGuide.pdf Webtrends Parameters]
|
| Proposal
 
|-valign="top"
| WT.si_n
| '''Scenario analysis parameter - scenario name'''
This defines a scenario name for the page or set of pages to be included in the scenario. This in turn produces a funnel type report in Webtrends.
Example:
<meta name="WT.si_n" content="my_scenario_name">
| [http://product.webtrends.com/WRC/OnDemand/ResourceCenter/rc/Library/PDF/IGOD/WebTrendsAnalyticsOnDemandImplementationGuide.pdf Webtrends Parameters].
|
| Proposal
 
|-valign="top"
| WT.si_p
| '''Scenario analysis parameter - scenario step name'''
This defines a scenario step name for the page or set of pages to be included in the scenario. This in turn produces a funnel type report in Webtrends. It works when paired with metedata tag name WT.si_n.
Example:
<meta name="WT.si_p" content="my_scenario_step_name">
| [http://product.webtrends.com/WRC/OnDemand/ResourceCenter/rc/Library/PDF/IGOD/WebTrendsAnalyticsOnDemandImplementationGuide.pdf Webtrends Parameters].
|
| Proposal
 
|-valign="top"
| WT.si_x
| '''Scenario analysis parameter - scenario step number'''
This defines a scenario step number for the page or set of pages to be included in the scenario. This in turn produces a funnel type report in Webtrends. It works when paired with metedata tag name WT.si_n, and as an alternative to Wt.si_p.
Example:
<meta name="WT.si_x" content="my_scenario_step_number">
| [http://product.webtrends.com/WRC/OnDemand/ResourceCenter/rc/Library/PDF/IGOD/WebTrendsAnalyticsOnDemandImplementationGuide.pdf Webtrends Parameters].
|
| Proposal
 
|-valign="top"
| wt.sv
| '''Tracking Servers parameter'''
If your site is hosted on multiple servers, a server cluster, or a server farm, and you want to evaluate the performance of your load balancer, Webtrends can track page views for each server. To do so, populate the following META tag on all pages on each server:
Example:
<meta name="WT.sv" content="My Server">
Defines the name of the machine that serves the web page. If you have two servers (Server1 and Server2), you would make two copies of the META tag and designate CONTENT=“Server1” for deployment to pages on the first server and CONTENT=“Server2” for deployment to the same pages on the second server.
For a server farm, you can extract the value of the built-in server name and dynamically assign it to the
META tag using server-side scripting.
Example:
<meta name="WT.sv" content="Server1">
<meta name="WT.sv" content="Server2">
An Ad View occurs when a visitor views a page containing an ad. An ad is a link or graphic that contains an Ad Click parameter in the query portion of it's URL.
| [https://tagbuilder.webtrends.com/Help/Miscellaneous/AdSearch.aspx?keepThis=true&TB_iframe=true&height=450&width=650 About WT.ad].
|
| Proposal
 
|-valign="top"
| wt.ti
| '''Tracking Page Titles'''
You may want to modify a page title before sending it to Webtrends in the following cases:
* You are dealing with dynamic content pages identified by URL parameters, and the page title represents the title of the base URL page rather than the dynamic content page.
Unless you modify the page titles, all pages have the same title in the reports.
* All pages have been assigned the same title, for reasons of style or company policy.
Even though URLs are displayed in addition to page title, the entire URL cannot be depended upon to distinguish one page from another.
Use server-side scripts to change the title to something that reflects the content of the pages so that you can identify them in reports. Next, pass the customized page titles to Webtrends, using the following META tag:
<META NAME="WT.ti" CONTENT="title">
Defines the name of the title for this page.
| [http://product.webtrends.com/WRC/OnDemand/ResourceCenter/rc/Library/PDF/IGOD/WebTrendsAnalyticsOnDemandImplementationGuide.pdf Webtrends Parameters]
|
| Proposal
 
|-valign="top"
| y_key
| Used to verify ownership for Yahoo! Site Explorer
| [http://help.yahoo.com/l/us/yahoo/search/siteexplorer/siteexplorer-06.html Yahoo! documentation]
|
| Proposal
 
|-valign="top"
| yandex-verification
| Used to verify ownership for Yandex Webmaster.
| [http://help.yandex.ru/webmaster/?id=995300#995356 Yandex Webmaster ownership verification]
|
| Proposal
 
|-valign="top"
| ZOOMCATEGORY
| Category of page to be grouped in Wrensoft Zoom Search Engine.
| [http://www.wrensoft.com/zoom/zoommeta.html Wrensoft Zoom Meta Documentation]
|
| Proposal
 
|-valign="top"
| ZOOMDESCRIPTION
| Alternative page description for Wrensoft Zoom Search Engine.
| [http://www.wrensoft.com/zoom/zoommeta.html Wrensoft Zoom Meta Documentation]
|
| Proposal
 
|-valign="top"
| ZOOMIMAGE
| URL to image to be displayed alongside result in Wrensoft Zoom Search Engine.
| [http://www.wrensoft.com/zoom/zoommeta.html Wrensoft Zoom Meta Documentation]
|
| Proposal
 
|-valign="top"
| ZOOMPAGEBOOST
| Page boost factor to increase or decrease the relevance of page in Wrensoft Zoom Search Engine.
| [http://www.wrensoft.com/zoom/zoommeta.html Wrensoft Zoom Meta Documentation]
|
| Proposal
 
|-valign="top"
| ZOOMTITLE
| Alternative page title for Wrensoft Zoom Search Engine.
| [http://www.wrensoft.com/zoom/zoommeta.html Wrensoft Zoom Meta Documentation]
|
| Proposal
 
|-valign="top"
| ZOOMWORDS
| Additional keywords to be indexed for Wrensoft Zoom Search Engine.
| [http://www.wrensoft.com/zoom/zoommeta.html Wrensoft Zoom Meta Documentation]
|
| Proposal
 
|}
 
== Proposals That Don't Meet the [http://www.whatwg.org/specs/web-apps/current-work/multipage/semantics.html#other-metadata-names Requirements] For a Registration ==
 
Note that these proposals can be moved back to the registry table if the problems listed in the rightmost column of this table are addressed.
 
{| class="wikitable sortable"
! Keyword
! Brief description
! Link to specification
! Synonyms
! Status
! Registration requirement failure
 
|-valign="top"
| blogcatalog
| Used to verify ownership of Blog Catalog.com
| [http://www.blogcatalog.com/ Blog catalog site]
|
| Incomplete proposal
| Claimed spec link is not a link to a spec
 
|-valign="top"
| created
| The datetime at which the document was created. The value is an ISO8601 date. The date MUST follow the [http://www.w3.org/TR/NOTE-datetime W3C Profile of ISO 8601] with a granularity of "Complete date:" or finer. The [http://www.bbc.co.uk/guidelines/futuremedia/desed/previousversions/searchmetadata_vs_1_0.shtml#metadata BBC] use this name.
|
|
| Incomplete proposal
| Lacks link to a spec
 
|-valign="top"
| expires
| <code>meta name='expires'</code> defines the expiration date of the page. This can be used for web pages in preparation for an upcoming event, e.g. a registration form for an exposition or competition, or other cases with a pre-set date when the document will no longer be valid, e.g. a product offer in a special sale or a support page for a product known not to be supported anymore from a given time onward.
 
Search engines should respond to this meta tag in a reasonable way, i.e. by removing the page from their main search results after the expiration date (possibly still returning the result in a special search for expired pages as long as the page exists and is not explicitly excluded via <code>robots.txt</code> or <code>meta name='robots'</code> etc.) or simply by indicating to the user that this result is out-of-date.
 
The content attribute should define the expiration date in accordance with http://www.w3.org/TR/NOTE-datetime . The meta tag should not be used for pages without expiration date. However, for historical reasons, search engines should also interpret other date formats where possible and should be prepared to find values such as "", "0", "no" and "never". Such non-date values are to be interpreted as no expiration date.
 
Correctly formatted example:
<code><pre><meta name='expires' content='2012-12-31T23:59Z'></pre></code>
 
This tag is not to be confused with and has a different meaning than <code>meta http-equiv='expires'.</code>
|
|
| Incomplete proposal
| Lacks link to a spec
 
|-valign="top"
| fb:admins
| Open Graph Protocol by Facebook developers
| [http://developers.facebook.com/docs/opengraph/ Facebook developers]
|
| Incomplete proposal
| The spec specifies this to be a value of the property attribute--not a meta keyword
 
|-valign="top"
| fb:page_id
| Open Graph Protocol by Facebook developers
| [http://developers.facebook.com/docs/opengraph/ Facebook developers]
|
| Incomplete proposal
| The spec specifies this to be a value of the property attribute--not a meta keyword
 
|-valign="top"
| gm-gpx-v
| Wordpress Plugin Google Maps GPX Viewer
| [http://wordpress.org/extend/plugins/google-maps-gpx-viewer/ Google Maps GPX Viewer]
|
| Incomplete proposal
| Claimed spec link is not a link to a spec
 
|-valign="top"
| google-translate-customization
| Used to verify ownership for Website Translator. <meta name="google-translate-customization" content="Your Website Code Goes Here. Generated When Adding The Google Translate Plugin To Your Site" />
|
|
| Incomplete proposal
| Lacks link to a spec
 
|-valign="top"
| nextgen
| Used for nextgen gallery plugin in wordpress
| [http://www.alexa.com/faqs/?p=188 Alexa FAQ About this meta attribute Reference]
|
| Incomplete proposal
| Unrelated spec link
 
|-valign="top"
| nibbler-site-verification
| Used to verify ownership of Nibbler site
| [http://nibbler.silktide.com/ Nibbler site]
|
| Incomplete proposal
| Claimed spec link does not link to a spec
 
|-valign="top"
| og:description
| Open Graph Protocol by Facebook developers
| [http://developers.facebook.com/docs/opengraph/ Facebook developers]
|
| Incomplete proposal
| The spec specifies this to be a value of the property attribute--not a meta keyword
 
|-valign="top"
| og:image
| Open Graph Protocol by Facebook developers
| [http://developers.facebook.com/docs/opengraph/ Facebook developers]
|
| Incomplete proposal
| The spec specifies this to be a value of the property attribute--not a meta keyword
 
|-valign="top"
| og:site_name
| Open Graph Protocol by Facebook developers
| [http://developers.facebook.com/docs/opengraph/ Facebook developers]
|
| Incomplete proposal
| The spec specifies this to be a value of the property attribute--not a meta keyword
 
|-valign="top"
| og:title
| Open Graph Protocol by Facebook developers
| [http://developers.facebook.com/docs/opengraph/ Facebook developers]
|
| Incomplete proposal
| The spec specifies this to be a value of the property attribute--not a meta keyword
 
|-valign="top"
| og:type
| Open Graph Protocol by Facebook developers
| [http://developers.facebook.com/docs/opengraph/ Facebook developers]
|
| Incomplete proposal
| The spec specifies this to be a value of the property attribute--not a meta keyword
 
|-valign="top"
| og:url
| Open Graph Protocol by Facebook developers
| [http://developers.facebook.com/docs/opengraph/ Facebook developers]
|
| Incomplete proposal
| The spec specifies this to be a value of the property attribute--not a meta keyword
 
|-valign="top"
| property="og:*"
| Metadata used by the Open Graph protocol (used by Facebook). Note: currently these are defined as: <meta property="og.*" content="x"/>
| [http://developers.facebook.com/docs/opengraph/ FAQ About the Open Graph protocol from Facebook.]
|
| Doesn't belong in this registry
| Not a value to be used in the <code>name</code> attribute
 
|-valign="top"
| resolutions
| Authoring web sites to use resolution independent images that display beautifully on high-resolution displays should be made as easy as possible for developers and should not require JavaScript to accomplish.
 
To accomplish this, I propose a new HTML Meta Tag, <code>resolutions</code>, that can be used to specify that high-resolution versions of images linked to from the page are available and that the browser should use them in place of the lower-resolution default images if it detects that a user is using a high-resolution screen. The resolutions meta tag lists the device-pixel ratios supported by images in the page.
 
So, for example…
 
<code><pre><meta name="resolutions" content="2x"></pre></code>
 
… means that the developer is telling the browser that she has created 2x resolution images for the images linked to from the current page and named them with a @2x suffix.
 
To illustrate, if her image tag is as follows…
 
<code><pre><img src="/images/flower.jpg" alt="A flower"></pre></code>
 
… then she has two image files under /images: the low-resolution default (flower.jpg), and a higher-resolution (200%) version named [email protected].
 
(This is the same naming convention already used by Apple in its Cocoa Touch framework for automatically loading in higher-resolution versions of images.)
 
Based on the meta tag, if the browser detects that the user is running at a <code>min-device-pixel-ratio</code> of 2.0, it will automatically ask for the 2x version of the image ([email protected]) instead of the default image as specified in the image tag.
 
Finally, so as not to flood external sites with high-resolution image requests, this functionality would only work for local images specified via relative links.
 
<b>Multiple resolutions</b>
 
The resolutions tag can also contain a list of supported device-pixel ratios so as to support even higher-resolution displays when and if they become available in the future.
 
For example:
 
<code><pre><meta name="resolutions" content="2x, 4x, 8x"></pre></code>
 
In this case, the developer would provide 2x, 4x, and 8x versions of all images. So, in the running example, she would make flower.jpg, [email protected], [email protected], and [email protected].
 
<b>Advantages</b>
 
The advantages of this approach are several:
 
<ol>
    <li>Makes it very simple for developers to support high-resolution displays like the iPhone 4's Retina screen</li>
    <li>Does not require JavaScript</li>
    <li>Does not change the default way that things work (if the meta tag is not specified, the browser simply behaves as it always has).</li>
</ol>
 
| [http://aralbalkan.com/3355 Proposal for native browser support of high-resolution image substitution]
[http://aralbalkan.com/3331 How to make your web content look stunning on the iPhone 4’s new Retina display]
|
| Incomplete proposal
| Lacks link to a spec
 
|}
 
== Failed Proposals ==
 
{| class="wikitable sortable"
! Keyword
! Brief description
! Link to more details
! Synonyms
! Status
 
|-valign="top"
| bot-.&nbsp;.&nbsp;.
|
| [https://wiki.whatwg.org/index.php?title=MetaExtensions&diff=3727&oldid=3705 Old MetaExtensions revision diff] &  [https://wiki.whatwg.org/index.php?title=MetaExtensions&diff=4088&oldid=3824 edit]
|
| Unendorsed
 
|-valign="top"
| cache
| This doesn't actually work; use HTTP headers instead.<br />Value must be "public", "private", or "no-cache". Intended as a simple way to tell user agents whether to store a copy of the document or not. An alternate for HTTP/1.1's cache-control; for publishers without access to modifying cache-control.
| none
|
| Unendorsed
 
|-valign="top"
| DC.
| Dublin Core, maintained by Dublin Core MetaData Initiative (DCMI), is an extensive system with some overlap with non-DC names.<br />This reserves all strings that begin with DC and a dot. ''Not true; DC-HTML doesn't use hardwired prefixes, but defines the prefixes using link/@rel="scheme.prefix"''
| [http://www.DublinCore.org DCMI]
|
| Unendorsed
 
|-valign="top"
| dir-content-pointer
| No longer useful. The function is better performed with HTML markup.
| [https://wiki.whatwg.org/index.php?title=MetaExtensions&diff=3727&oldid=3705 Old MetaExtensions revision diff] &  [https://wiki.whatwg.org/index.php?title=MetaExtensions&diff=10213&oldid=10212 edit]
|  
|  
| Unendorsed
| Unendorsed
Line 1,486: Line 3,201:


|}
|}
== Process ==
For the "Status" section to be changed to "Ratified", the proposed keyword must be defined by a W3C specification in the Candidate Recommendation or Recommendation state. If it fails to go through this process, it is "Unendorsed".
For more details, see [http://whatwg.org/specs/web-apps/current-work/#concept-meta-extensions the HTML5 specification].


[[Category:Registries]]
[[Category:Registries]]

Latest revision as of 15:13, 12 October 2023

This page lists extension values for the name="" attribute of the HTML <meta> element. You may add your own values to this list.

For assistance in preparing a specification, see the specification editing category and the Bikeshed documentation.

If the specification is ready, we ask that you:

  • Avoid redundancy. If someone has already defined a name that does roughly what you want, please reuse it.
  • Be sure to include all the items outlined in the spec including a link to a specification that specifies the keyword as an HTML meta keyword. If a proposal lacks a specification and a version in a complete specification exists, the latter is to be preferred.
  • Alphabetize by keyword, without regard for case, in any table. Sort nonalphanumerics by ASCII value.
  • Not reserve namespaces. Instead, register individual names (known as enumerated values although you don't have to number them).

URL-valued attributes must not be added to this page as meta names but should be registered as rel keywords instead.

Meta Name Extensions

Keyword Brief description Link to specification Synonyms Status
AGLSTERMS.accessibility A statement indicating the accessibility characteristics of the resource. AGLS Metadata Usage Guide Proposal
AGLSTERMS.accessMode Perceptual mode for the resource. AGLS Metadata Usage Guide Proposal
AGLSTERMS.act A specific piece of legislation which requires or drives the creation or provision of the resource. AGLS Metadata Usage Guide Proposal
AGLSTERMS.aggregationLevel The level of aggregation of the described resource - an 'item' or a 'collection'. AGLS Metadata Usage Guide Proposal
AGLSTERMS.allow-search A specific piece of legislation which requires or drives the creation or provision of the resource. AGLS Metadata Usage Guide Proposal
AGLSTERMS.availability How the resource can be obtained or accessed, or contact information. Primarily used for offline resources to provide information on how to obtain physical access to the resource. AGLS Metadata Usage Guide Proposal
AGLSTERMS.case A specific piece of case law which requires or drives the creation or provision of the resource. AGLS Metadata Usage Guide Proposal
AGLSTERMS.category The generic type of the resource being described - a 'service', 'document' or 'agency'. AGLS Metadata Usage Guide Proposal
AGLSTERMS.dateLicensed Date a license was applied or became effective. AGLS Metadata Usage Guide Proposal
AGLSTERMS.documentType The form of the described resource where the value of category is‘document’. Document is used in its widest sense and includes resources such as text, images, sound files and software. AGLS Metadata Usage Guide Proposal
AGLSTERMS.function The business function to which the resource relates. Functions are the major units of activity which organisations pursue in order to meet the mission and goals of the organisation. AGLS Metadata Usage Guide Proposal
AGLSTERMS.isBasedOn A related resource of which the described resource is a performance, production, derivation, translation or interpretation. AGLS Metadata Usage Guide Proposal
AGLSTERMS.isBasisFor A related resource that is a performance, production, derivation, translation or interpretation of the described resource. AGLS Metadata Usage Guide Proposal
AGLSTERMS.jurisdiction The name of the political/administrative entity covered by the described resource. AGLS Metadata Usage Guide Proposal
AGLSTERMS.mandate A specific legal instrument which requires or drives the creation or provision of the resource. AGLS Metadata Usage Guide Proposal
AGLSTERMS.protectiveMarking A protective marking applied to the described resource. AGLS Metadata Usage Guide Proposal
AGLSTERMS.regulation A specific regulation which requires or drives the creation or provision of the resource. AGLS Metadata Usage Guide Proposal
AGLSTERMS.serviceType The form of the described resource where the value of category is ‘service'. AGLS Metadata Usage Guide Proposal
alexaverifyid Used to verify ownership of Alexa Search Alexa FAQ About this meta attribute Reference Proposal
apple-itunes-app Promoting Apps with Smart App Banners Safari Web Content Guide Proposal
apple-mobile-web-app-capable Sets whether a web application runs in full-screen mode. Apple Safari HTML Reference mobile-web-app-capable (also could maybe be assumed when application-name is set?) Proposal
apple-mobile-web-app-status-bar-style Sets the style of the status bar for a web application. Apple Safari HTML Reference Proposal
apple-mobile-web-app-title Sets the title of the application when added to the homescreen on iOS6+ Unofficial Documentation of apple-mobile-web-app-title - Read more about Apple's web-app's at Apple Safari HTML Reference Proposal
apple-touch-fullscreen forces iPhone Fullscreen mode, if added to home screen. Not needed anymore. No specification yet Proposal
application-name For Windows 7: "[D]efines the name of the Pinned site application instance. This is the name that appears in a tooltip when hovering over the Pinned site button on the Windows 7 taskbar. The application name is also appended to the window title of the Pinned site application instance." Although the documentation refers to an application, it gives an example of writing this metadata for HTML. Indeed, this name must not be used except in a Web application, according to HTML Living Standard and HTML 5.1. Declaring Pinned Site Metadata (Microsoft Developer Network) Proposed
application-url Start URL of web apps in Google Chrome

The "application-url" meta tag can be used to specify the start URL of pinned web apps in Google Chrome. 

<meta name="application-url" content="https://gmail.com/">
Google Chrome Webmaster FAQ Chromium issue response Proposal
appstore:bundle_id Application bundle identifier or package identifier, used to identify applications on platforms and within some app stores. Usage: <meta name="appstore:bundle_id" content="com.example.myapp"> IAB Tech Lab app-ads.txt documentation: https://iabtechlab.com/ads-txt/ Proposal
appstore:developer_url The consumer-visible URL published as developer contact details within an app store listing for an app. Usage: <meta name="appstore:developer_url" content="https://www.path.to/page"> IAB Tech Lab app-ads.txt documentation: https://iabtechlab.com/ads-txt/ Proposal
appstore:store_id An app store specific identifier representing the stock keeping unit (SKU) or another identifier used to locate the app within the store. Usage: <meta name="appstore:store_id" content="SKU12345"> IAB Tech Lab app-ads.txt documentation: https://iabtechlab.com/ads-txt/ Proposal
audience Categorize the principal intended audience for the page, generally with a controlled vocabulary.

Google uses this tag: Custom Search Help, as accessed Jan. 8, 2016. 		BrittleBit.org spec Proposal
bitcoin A bitcoin-address Short documentation (unofficial): FrontendNetworks unofficial documentation for bitcoin-metatag, more informations about the Bitcoin-adress: Bitcoin wiki Proposal
blazerr-secure Decides whether connect via a secure connection or not to JokeNetwork's Blazerr-System. Synonym to blazerr-ssl, but only for old browsers such as Internet Explorer 7.

Usage: <meta name="blazerr-secure" content="yes">

JokeNetwork's Blazerr Documentation Proposal
blazerr-seo Checks whether Blazerr SEO has been used or not. It contains the user-id and the SEO Version.

Usage: <meta name="blazerr-seo" content="0001;v0.7">
0001 is an example for a user id, v0.7 identifies which version of SEO is used (In this case version Beta 7 / 0.7). If you're using Blazerr SEO, you have to include this meta-tag. Otherwise the tool will not work.

JokeNetwork's Blazerr Documentation Proposal
blazerr-ssl Decides whether connect via a secure connection or not to JokeNetwork's Blazerr-System. Similar to blazerr-secure.

Usage: <meta name="blazerr-ssl" content="yes">

JokeNetwork's Blazerr Documentation blazerr-secure is partial synonym (see that entry) Proposal
blazerr-support-id-noncookies Used to identify users for JokeNetwork's Blazerr Support-System without a cookie. Deprecated. JokeNetwork's Blazerr Documentation Proposal
blazerr-support-identifier Used to identify users for JokeNetwork's Blazerr Support-System along with a cookie. The verification of a user without the use of cookies can be obtained with the deprecated meta tag blazerr-support-id-noncookies. JokeNetwork's Blazerr Documentation Proposal
bug.blocked Bugzilla dependency tree to which the https://dvcs.w3.org/hg/webcomponents/raw-file/default/assets/scripts/bug-assist.js bug-creation script will add a link. Embedded documentation Proposal
bug.comment Bugzilla comment used by the https://dvcs.w3.org/hg/webcomponents/raw-file/default/assets/scripts/bug-assist.js bug-creation script. Embedded documentation Proposal
bug.component Bugzilla component against which the https://dvcs.w3.org/hg/webcomponents/raw-file/default/assets/scripts/bug-assist.js bug-creation script will create a new bug. Embedded documentation Proposal
bug.product Bugzilla product against which the https://dvcs.w3.org/hg/webcomponents/raw-file/default/assets/scripts/bug-assist.js bug-creation script will create a new bug. Embedded documentation Proposal
bug.short_desc Bugzilla short description used by the https://dvcs.w3.org/hg/webcomponents/raw-file/default/assets/scripts/bug-assist.js bug-creation script. Embedded documentation Proposal
cfia.gdr.activity Canadian Food Inspection Agency Guidance Document Repository Page Activity Coming soon at CFIA website Proposal
cfia.gdr.commodity Canadian Food Inspection Agency Guidance Document Repository Page Commodity Coming soon at CFIA website Proposal
cfia.gdr.include Canadian Food Inspection Agency Guidance Document Repository Page Coming soon at CFIA website Proposal
cfia.gdr.program Canadian Food Inspection Agency Guidance Document Repository Page Program Coming soon at CFIA website Proposal
citation_author The name of an author of an academic paper Google Scholar indexing documentation Proposal
citation_author_email The email address of the preceding author (identified using citation_author) of an academic paper Proposal
citation_author_institution The name of an institution to which the preceding author (identified using citation_author) of an academic paper is affiliated Proposal
citation_conference_title The title of the conference at which an academic paper is published Google Scholar indexing documentation Proposal
citation_date The publication date of an academic paper Proposal
citation_dissertation_institution The name of the institution which published an academic dissertation Google Scholar indexing documentation Proposal
citation_doi The Digital Object Identifier of an academic paper Proposal
citation_firstpage The first page of the journal in which an academic paper is published Google Scholar indexing documentation Proposal
citation_fulltext_html_url The URL of the full text HTML version of an academic paper Proposal
citation_isbn The ISBN of the book in which an academic paper is published Google Scholar indexing documentation Proposal
citation_issn The ISSN of the journal in which an academic paper is published Google Scholar indexing documentation Proposal
citation_issue The issue of the journal in which an academic paper is published Google Scholar indexing documentation Proposal
citation_journal_abbrev The abbreviated title of the journal in which an academic paper is published Proposal
citation_journal_title The title of the journal in which an academic paper is published Google Scholar indexing documentation Proposal
citation_keywords A semicolon-separated list of keywords associated with an academic paper Proposal
citation_language The language in which an academic paper is written, as an ISO 639-1 two-letter code Proposal
citation_lastpage The last page of the journal in which an academic paper is published Google Scholar indexing documentation Proposal
citation_pdf_url The URL of a PDF version of an academic paper Google Scholar indexing documentation Proposal
citation_publication_date The publication date of an academic paper Google Scholar indexing documentation Proposal
citation_publisher The name of the publisher of an academic paper The spec (as accessed 11-26-17) omits this meta name but refers to the meta name DC.publisher (see that on this page). Proposal
citation_technical_report_institution The name of the institution which published an academic technical report or preprint Google Scholar indexing documentation Proposal
citation_technical_report_number The identification number of an academic technical report or preprint Google Scholar indexing documentation Proposal
citation_title The title of an academic paper Google Scholar indexing documentation Proposal
citation_volume The volume of the journal in which an academic paper is published Google Scholar indexing documentation Proposal
collection To replace the obsolete dc:collection. A collection is described as a group, an aggregation of topics Used to describe the top-level content of XHTML documents. These appear in your META tags showing a group of subject. Website Taxonomy improve classification for search engine analysis and semantic communication with a description language content.

<meta name="collection" content="MetaExtensions" /> <meta name="subject" content="topics, thesaurus, Meta Tag, header, semantic" />

[1] Proposal
contact Defines the vendor's contact information by way of a phone-number (such as the customer support number), an e-mail ID (such as the customer support mail ID) or a physical address (such as the office address or billing address).

Usage: <meta name="contact" content="+1-555-555-5555 [email protected] '5844 South Oak Street, Chicago, Illinois'">
or in case of multiple entries:
<meta name="contact" content="Chicago: +1-555-555-5555 [email protected] '5844 South Oak Street, Chicago, Illinois'; Brookfield: +1-444-444-4444 [email protected] '2341 Cherry Lane, Brookfield, Illinois'">
The content attribute is a space separated string containing the phone-number followed by the e-mail ID and then the address (specified within quotes).
For specifying multiple entries a semi-colon separated list of name: value pairs can be defined. The name can be any descriptive tag identifying the given location.
Valid phone numbers and mail IDs should be provided by the vendor. The address can either be a string specified within quotes or the latitude and longtitude coordinates.

Documentation Proposal
creator Identify the creator of the page’s content, the content generally being the principal part of what info is rendered for website visitors. BrittleBit.org spec Proposal
csrf-param Cross-site request forgery protection parameter for Ruby on Rails Rails API Proposal
csrf-token Cross-site request forgery protection token for Ruby on Rails Rails API Proposal
da_anonymiseIP Defines anonymiseIP parameter for Decibel Insight Documentation Proposal
da_contactCompany Defines the contactCompany of the page for Decibel Insight Documentation Proposal
da_contactEmail Defines the contactEmail of the page for Decibel Insight Documentation Proposal
da_contactFirstName Defines the contactFirstName of the page for Decibel Insight Documentation Proposal
da_contactLastName Defines the contactLastName of the page for Decibel Insight Documentation Proposal
da_contactName Defines the contactName of the page for Decibel Insight Documentation Proposal
da_contactTelephone Defines the contactTelephone of the page for Decibel Insight Documentation Proposal
da_conversionCurrency Defines the conversionCurrency of the page for Decibel Insight Documentation Proposal
da_conversionId Defines the conversionId of the page for Decibel Insight Documentation Proposal
da_conversionValue Defines the conversionValue of the page for Decibel Insight Documentation Proposal
da_goalCurrency Defines the goalCurrency of the page for Decibel Insight Documentation Proposal
da_goalId Defines the goalId of the page for Decibel Insight Documentation Proposal
da_goalValue Defines the goalValue of the page for Decibel Insight Documentation Proposal
da_interactionSelector Defines the interactionSelector parameter for Decibel Insight Documentation Proposal
da_pageRole Defines the role of the page for Decibel Insight Documentation Proposal
da_pageTaxonomy Defines the taxonomy of the page for Decibel Insight Documentation Proposal
da_pageTitle Defines the pageTitle of the page for Decibel Insight Documentation Proposal
da_pageVersion Defines the pageVersion of the page for Decibel Insight Documentation Proposal
da_sessionId Defines the sessionId parameter for Decibel Insight Documentation Proposal
da_userId Defines the userId parameter for Decibel Insight Documentation Proposal
dc.created Date of creation of the resource.

It must be accompanied by a <link rel="schema.dc" href="http://purl.org/dc/elements/1.1/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

Proposal
dc.creator An entity primarily responsible for making the resource.

It must be accompanied by a <link rel="schema.dc" href="http://purl.org/dc/elements/1.1/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

Proposal
dc.date.issued Date of publication for Google News. The format of the content is YYYY-MM-DD or YYYY-MM-DDThh:mm:ssTZD.

It must be accompanied by a <link rel="schema.dc" href="http://purl.org/dc/elements/1.1/"> element

Google News documentation dcterms.issued (former <time pubdate> no longer considered due to the abort of @pubdate) Proposal
dc.dateCopyrighted Date of copyright.

It must be accompanied by a <link rel="schema.dc" href="http://purl.org/dc/elements/1.1/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

Proposal
dc.dateSubmitted Date of submission of the resource.

It must be accompanied by a <link rel="schema.dc" href="http://purl.org/dc/elements/1.1/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

Proposal
dc.description An account of the resource.

It must be accompanied by a <link rel="schema.dc" href="http://purl.org/dc/elements/1.1/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

Proposal
dc.language A language of the resource. Recommended best practice is to use a controlled vocabulary such as RFC 4646 [RFC4646].

It must be accompanied by a <link rel="schema.dc" href="http://purl.org/dc/elements/1.1/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

Redundant with the lang attribute on the

html element. (Browsers pay attention to the lang attribute but not dc.language)

Proposal
dc.license A legal document giving official permission to do something with the resource.

It must be accompanied by a <link rel="schema.dc" href="http://purl.org/dc/elements/1.1/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

Proposal
dc.mediator An entity that mediates access to the resource and for whom the resource is intended or useful.

It must be accompanied by a <link rel="schema.dc" href="http://purl.org/dc/elements/1.1/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

Proposal
dc.medium The material or physical carrier of the resource.

It must be accompanied by a <link rel="schema.dc" href="http://purl.org/dc/elements/1.1/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

Proposal
dc.modified Date on which the resource was changed.

It must be accompanied by a <link rel="schema.dc" href="http://purl.org/dc/elements/1.1/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

Proposal
dc.provenance A statement of any changes in ownership and custody of the resource since its creation that are significant for its authenticity, integrity, and interpretation.

It must be accompanied by a <link rel="schema.dc" href="http://purl.org/dc/elements/1.1/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

Proposal
dc.publisher An entity responsible for making the resource available.

It must be accompanied by a <link rel="schema.dc" href="http://purl.org/dc/elements/1.1/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

Proposal
dc.references A related resource that is referenced, cited, or otherwise pointed to by the described resource.

It must be accompanied by a <link rel="schema.dc" href="http://purl.org/dc/elements/1.1/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

Proposal
dc.temporal Temporal characteristics of the resource.

It must be accompanied by a <link rel="schema.dc" href="http://purl.org/dc/elements/1.1/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

Proposal
dc.title A name given to the resource.

It must be accompanied by a <link rel="schema.dc" href="http://purl.org/dc/elements/1.1/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

Proposal
dc.type The nature or genre of the resource. Recommended best practice is to use a controlled vocabulary such as the DCMI Type Vocabulary [DCMITYPE].

To describe the file format, physical medium, or dimensions of the resource, use the Format element. It must be accompanied by a <link rel="schema.dc" href="http://purl.org/dc/elements/1.1/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

Proposal
dc.valid Date (often a range) of validity of a resource.

It must be accompanied by a <link rel="schema.dc" href="http://purl.org/dc/elements/1.1/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

Proposal
DCS.dcssta Error page parameter

This defines an error code web page so that Webtrends can identify it as a non-success page. Generally used to identify pages that contain 400 and 500 series return codes. As a result, Webtrends excludes these pages from its standard "Pages" report, to instead populate its standard "errors" report. Example: 

<meta name="DCS.dcssta" content="404">
Webtrends Parameters. Proposal
dcterms.abstract A summary of the resource.

It must be accompanied by a <link rel="schema.dcterms" href="http://purl.org/dc/terms/"> element.

[http://dublincore.org/documents/dcmi-terms/#terms-abstract DCMI

Metadata Terms] mapped according to Expressing Dublin Core metadata using HTML/XHTML meta and link elements

<meta name="description"> Proposal
dcterms.accessRights Information about who can access the resource or an indication of its security status.

It must be accompanied by a <link rel="schema.dcterms" href="http://purl.org/dc/terms/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

Proposal
dcterms.accrualMethod The method by which items are added to a collection.

It must be accompanied by a <link rel="schema.dcterms" href="http://purl.org/dc/terms/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

Proposal
dcterms.accrualPeriodicity The frequency with which items are added to a collection.

It must be accompanied by a <link rel="schema.dcterms" href="http://purl.org/dc/terms/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

Proposal
dcterms.accrualPolicy The policy governing the addition of items to a collection.

It must be accompanied by a <link rel="schema.dcterms" href="http://purl.org/dc/terms/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

Proposal
dcterms.alternative An alternative name for the resource.

It must be accompanied by a <link rel="schema.dcterms" href="http://purl.org/dc/terms/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

Proposal
dcterms.audience A class of entity for whom the resource is intended or useful.

It must be accompanied by a <link rel="schema.dcterms" href="http://purl.org/dc/terms/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

Proposal
dcterms.available Date (often a range) that the resource became or will become available.

It must be accompanied by a <link rel="schema.dcterms" href="http://purl.org/dc/terms/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

Proposal
dcterms.bibliographicCitation A bibliographic reference for the resource.

It must be accompanied by a <link rel="schema.dcterms" href="http://purl.org/dc/terms/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

The HTML attribute cite Proposal
dcterms.collection An aggregation of resources.

It must be accompanied by a <link rel="schema.dcterms" href="http://purl.org/dc/terms/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

Proposal
dcterms.conformsTo An established standard to which the described resource conforms.

It must be accompanied by a <link rel="schema.dcterms" href="http://purl.org/dc/terms/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

Proposal
dcterms.contributor An entity responsible for making contributions to the content of the resource.

It must be accompanied by a <link rel="schema.dcterms" href="http://purl.org/dc/terms/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

Proposal
dcterms.coverage The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant.

It must be accompanied by a <link rel="schema.dcterms" href="http://purl.org/dc/terms/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

Proposal
dcterms.created Date of creation of the resource.

It must be accompanied by a <link rel="schema.dcterms" href="http://purl.org/dc/terms/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

Proposal
dcterms.creator An entity primarily responsible for making the resource. Examples of a Creator include a person, an organization, or a service.

It must be accompanied by a <link rel="schema.dcterms" href="http://purl.org/dc/terms/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

In some cases redundant with the HTML built-in keyword author Proposal
dcterms.date A point or period of time associated with an event in the lifecycle of the resource.

It must be accompanied by a <link rel="schema.dcterms" href="http://purl.org/dc/terms/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

Proposal
dcterms.dateAccepted Date of acceptance of the resource.

It must be accompanied by a <link rel="schema.dcterms" href="http://purl.org/dc/terms/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

Proposal
dcterms.dateCopyrighted Date of copyright.

It must be accompanied by a <link rel="schema.dcterms" href="http://purl.org/dc/terms/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

Proposal
dcterms.dateSubmitted Date of submission of the resource.

It must be accompanied by a <link rel="schema.dcterms" href="http://purl.org/dc/terms/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

Proposal
dcterms.description An account of the resource. Description may include but is not limited to: an abstract, a table of contents, a graphical representation, or a free-text account of the resource.

It must be accompanied by a <link rel="schema.dcterms" href="http://purl.org/dc/terms/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

HTML built-in keyword description Proposal
dcterms.educationLevel A class of entity, defined in terms of progression through an educational or training context, for which the described resource is intended.

It must be accompanied by a <link rel="schema.dcterms" href="http://purl.org/dc/terms/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

Proposal
dcterms.extent The size or duration of the resource.

It must be accompanied by a <link rel="schema.dcterms" href="http://purl.org/dc/terms/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

Proposal
dcterms.format The file format, physical medium, or dimensions of the resource.

It must be accompanied by a <link rel="schema.dcterms" href="http://purl.org/dc/terms/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

To be limited to dimensions information. File format for the document is to be determined by server. Linked resources can be described by type attribute. Proposal
dcterms.hasFormat A related resource that is substantially the same as the pre-existing described resource, but in another format.

It must be accompanied by a <link rel="schema.dcterms" href="http://purl.org/dc/terms/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

The HTML link type keyword "alternate" used with "link" element:rel="alternate" href="URI of related resource" Proposal
dcterms.hasPart A related resource that is included either physically or logically in the described resource.

It must be accompanied by a <link rel="schema.dcterms" href="http://purl.org/dc/terms/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

Proposal
dcterms.hasVersion A related resource that is a version, edition, or adaptation of the described resource.

It must be accompanied by a <link rel="schema.dcterms" href="http://purl.org/dc/terms/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

The HTML link type keyword "alternate" used with "link" element:rel="alternate" href="URI of related resource" Proposal
dcterms.identifier An unambiguous reference to the resource within a given context.

It must be accompanied by a <link rel="schema.dcterms" href="http://purl.org/dc/terms/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

Proposal
dcterms.instructionalMethod A process used to engender knowledge, attitudes and skills, that the described resource is designed to support.

It must be accompanied by a <link rel="schema.dcterms" href="http://purl.org/dc/terms/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

Proposal
dcterms.isFormatOf A related resource that is substantially the same as the described resource, but in another format.

It must be accompanied by a <link rel="schema.dcterms" href="http://purl.org/dc/terms/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

The HTML link type keyword "alternate" used with "link" element:rel="alternate" href="URI of related resource" Proposal
dcterms.isPartOf A related resource in which the described resource is physically or logically included.

It must be accompanied by a <link rel="schema.dcterms" href="http://purl.org/dc/terms/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

Proposal
dcterms.isReferencedBy A related resource that references, cites, or otherwise points to the described resource.

It must be accompanied by a <link rel="schema.dcterms" href="http://purl.org/dc/terms/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

Proposal
dcterms.isReplacedBy A related resource that supplants, displaces, or supersedes the described resource.

It must be accompanied by a <link rel="schema.dcterms" href="http://purl.org/dc/terms/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

The HTML link type keyword "alternate" used with "link" element:rel="alternate" href="URI of related resource" Proposal
dcterms.isRequiredBy A related resource that requires the described resource to support its function, delivery, or coherence.

It must be accompanied by a <link rel="schema.dcterms" href="http://purl.org/dc/terms/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

Proposal
dcterms.issued Date of formal issuance (e.g., publication) of the resource. (DC doesn't spec a date format but the established practice is YYYY-MM-DD.)

It must be accompanied by a <link rel="schema.dcterms" href="http://purl.org/dc/terms/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

(former <time pubdate> no longer considered due to the abort of @pubdate) Proposal
dcterms.isVersionOf A related resource of which the described resource is a version, edition, or adaptation.

It must be accompanied by a <link rel="schema.dcterms" href="http://purl.org/dc/terms/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

The HTML link type keyword "alternate" used with "link" element:rel="alternate" href="URI of related resource" Proposal
dcterms.language A language of the resource. Recommended best practice is to use a controlled vocabulary such as RFC 4646 [RFC4646].

It must be accompanied by a <link rel="schema.dcterms" href="http://purl.org/dc/terms/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

Redundant with the lang attribute on the html element. (Browsers pay attention to the lang attribute but not dcterms.language) Proposal
dcterms.license A legal document giving official permission to do something with the resource.

It must be accompanied by a <link rel="schema.dcterms" href="http://purl.org/dc/terms/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

The HTML <link> element with the keyword "license" as value of the rel attribute. Proposal
dcterms.mediator An entity that mediates access to the resource and for whom the resource is intended or useful.

It must be accompanied by a <link rel="schema.dcterms" href="http://purl.org/dc/terms/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

Proposal
dcterms.medium The material or physical carrier of the resource.

It must be accompanied by a <link rel="schema.dcterms" href="http://purl.org/dc/terms/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

Proposal
dcterms.modified Date on which the resource was changed. (DC doesn't spec a date format but the established practice is YYYY-MM-DD.)

It must be accompanied by a <link rel="schema.dcterms" href="http://purl.org/dc/terms/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

Proposal
dcterms.provenance A statement for any changes in ownership and custody of the resource since its creation that are significant for its authenticity, integrity, and interpretation.

It must be accompanied by a <link rel="schema.dcterms" href="http://purl.org/dc/terms/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

Proposal
dcterms.publisher An entity responsible for making the resource available.

It must be accompanied by a <link rel="schema.dcterms" href="http://purl.org/dc/terms/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

publisher Proposal
dcterms.references A related resource that is referenced, cited, or otherwise pointed to by the described resource.

It must be accompanied by a <link rel="schema.dcterms" href="http://purl.org/dc/terms/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

cite attribute on specific quotes, if any. Proposal
dcterms.relation A related resource.

It must be accompanied by a <link rel="schema.dcterms" href="http://purl.org/dc/terms/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

If the relation comes from an internal reference or quote, dcterms.references should be preferred. Proposal
dcterms.replaces A related resource that is supplanted, displaced, or superseded by the described resource.

It must be accompanied by a <link rel="schema.dcterms" href="http://purl.org/dc/terms/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

The HTML link type keyword "alternate" used with "link" element:rel="alternate" href="URI of related resource" Proposal
dcterms.requires A related resource that is required by the described resource to support its function, delivery, or coherence.

It must be accompanied by a <link rel="schema.dcterms" href="http://purl.org/dc/terms/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

Proposal
dcterms.rights Information about rights held in and over the resource.

It must be accompanied by a <link rel="schema.dcterms" href="http://purl.org/dc/terms/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

The HTML <link> element with the keyword "license" as value of the rel attribute, if referring to a legal license format. Proposal
dcterms.rightsHolder A person or organization owning or managing rights over the resource.

It must be accompanied by a <link rel="schema.dcterms" href="http://purl.org/dc/terms/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

Proposal
dcterms.source A related resource from which the described resource is derived.

It must be accompanied by a <link rel="schema.dcterms" href="http://purl.org/dc/terms/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

The HTML link type keyword "alternate" used with "link" element:rel="alternate" href="URI of related resource" if documents are different versions. Otherwise, cite attribute. Proposal
dcterms.spatial Spatial characteristics of the resource.

It must be accompanied by a <link rel="schema.dcterms" href="http://purl.org/dc/terms/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

geographic-coverage Proposal
dcterms.subject The topic of the resource. DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

HTML built-in keywords description or keywords Proposal
dcterms.tableOfContents A list of subunits of the resource.

It must be accompanied by a <link rel="schema.dcterms" href="http://purl.org/dc/terms/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

HTML built-in keywords description or keywords. Otherwise, a details-summary model which would provide user-readable information. Proposal
dcterms.temporal Temporal characteristics of the resource.

It must be accompanied by a <link rel="schema.dcterms" href="http://purl.org/dc/terms/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

Proposal
dcterms.title A name given to the resource.

It must be accompanied by a <link rel="schema.dcterms" href="http://purl.org/dc/terms/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

HTML built-in element title (not to be confused with @title attributes specific to each element) Proposal
dcterms.type The nature or genre of the resource. DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

Proposal
dcterms.valid Date (often a range) of validity of a resource.

It must be accompanied by a <link rel="schema.dcterms" href="http://purl.org/dc/terms/"> element.

DCMI Metadata Terms mapped according to

Expressing Dublin Core metadata using HTML/XHTML meta and link elements

Proposal
detectify-verification Used by the Detectify web vulnerability scanner as a domain verification key. The Detectify service will only consider the domain authenticated if it contains the "detectify-verification" meta tag, with the content set according to a per-customer token. Documentation Proposal
designer Credits the designer(s) responsible for the visual presentation of a website. Documentation Proposal
entity Allows for definitions of XML-style entities for substitution of references (defined as specially-named elements (e.g., use of data element and/or data-* attribute) or script tags) via inclusion of a JavaScript library. Library also supports inclusion of additional meta element entity definitions via iframe documents. Documentation Proposal
EssayDirectory Defines a custom description of websites listed in EssayDirectory.
Example: 
<meta name="EssayDirectory" content="Helping students find legitimate essay services.">
Documentation Proposal
fdse-description Tag used by FDSE search software, allows different description to be displayed in fdse results to that shown in description [2] Proposal
fdse-index-as Tag used by FDSE search software, allows FDSE to index a page as url described here [3] Proposal
fdse-keywords Tag used by FDSE search software, allows different keywords to be used by FDSE to keywords tag [4] Proposal
fdse-refresh Tag used by FDSE search software, allows FDSE to ignore refresh meta tags [5] Proposal
fdse-robots Tag used by FDSE search software, allows different robots instructions to be sent to FDSE than that sent to other search engines eg: index no index pages for local search [6] Proposal
FLBlogAuthor Depicts whether author of the blog is lawfirm or FL author FL Meta Names documentation Proposal
format-detection Enables or disables automatic detection of possible phone numbers in a webpage in Safari on iOS. Apple Safari HTML Reference Proposal
format-print Store print media requirements for a page so a user agent can alert a user to unusual needs, such as special paper, before printing is to begin. BrittleBit.org spec Proposal
fragment Opts a webpage into the AJAX crawling scheme when it does not have a "#!" URL. The only valid content value is "!". 
<meta name="fragment" content="!">
Google Crawable AJAX Specification Proposal
FSDateCreation Mentions the date when this web page was created FL Meta Names documentation Proposal
FSDatePublish Mentions the date when this web page was created FL Meta Names documentation Proposal
FSFLContent Informs the Publisher tool whether this page contains any content or not. Valid values yes or no FL Meta Names documentation Proposal
FSLanguage Language of the content in the page. Example: US English or UK English, etc FL Meta Names documentation Proposal
FSOnSitemap Whether the page is accessible via the Sitemap link in the firmsite FL Meta Names documentation Proposal
FSPageDescription Description of the content of page FL Meta Names documentation Proposal
FSPageName Name of the page within a Findlaw firmsite FL Meta Names documentation Proposal
FSSearchable This tag mentions whether a certain page can be searched or not FL Meta Names documentation Proposal
FSSection Depicts whether a page is a Section Page or simple page. Section pages can have links to other pages FL Meta Names documentation Proposal
FSWritertoolPageType Page Type of a page in the firmsite. Page Type values help the Publisher toold in page creation FL Meta Names documentation Proposal
gcterms.topicTaxonomy Organize resources specifically for taxonomy-based topical browse or search structures on websites (ie: breadcrumbs / website information architecture). [7] Government of Canada, Web Content Management System Metadata Application Profile. Proposal
geo.a1 National subdivision (state, canton, region, province, prefecture) of civil address to which the page is related. For resources within the US and Canada, corresponds to the common 2-character State/Province codes. 
<meta name="geo.a1" content="AB">
IETF Draft
GeoTags.com
RFC 4776 		Proposal
geo.a2 County, parish, gun (JP), district (IN) of civil address to which the page is related. 
<meta name="geo.a2" content="Warwickshire">
IETF Draft
GeoTags.com
RFC 4776 		Proposal
geo.a3 City, township, shi (JP) of civil address to which the page is related. 
<meta name="geo.a3" content="Calgary">
IETF Draft
GeoTags.com
RFC 4776 		Proposal
geo.country Case-insensitive ISO 3166-1 alpha-2 code of a country to which the page is related. 
<meta name="geo.country" content="de">
IETF Draft
GeoTags.com
ISO-3166-2 		Proposal
geo.lmk A landmark or vanity address to which the page is related. 
<meta name="geo.lmk" content="Auwaldstraße 11, 79110 Freiburg im Breisgau, Deutschland">
IETF Draft
GeoTags.com 		Proposal
geo.placename Superseded by geo.lmk. Name of geographic place to which the page is related. 
<meta name="geo.placename" content="London, Ontario">
IETF Draft
GeoTags.com 		Proposal
geo.position Geographic position to which the page is related. 
<meta name="geo.position" content="48.02682000000001;7.809769999999958">
Like icbm except for value syntax.
IETF Draft (expired)
GeoTags.com 		Proposal
geo.region Superseded by either geo.country alone or geo.country plus geo.a1. Name of geographic region to which the page is related. Content is specified by ISO-3166. 
<meta name="geo.region" content="DE-BW">
IETF Draft
GeoTags.com
ISO-3166 		Proposal
globrix.bathrooms Globrix property information: Number of bathrooms the property has FAQ About the Globrix meta tags. Proposal
globrix.bedrooms Globrix property information: Number of bedrooms the property has FAQ About the Globrix meta tags. Proposal
globrix.condition Globrix property information: Condition of the property e.g. 'renovated' FAQ About the Globrix meta tags. Proposal
globrix.features Globrix property information: Features of the property e.g. 'double glazing' FAQ About the Globrix meta tags. Proposal
globrix.instruction Globrix property information: Property to Buy or Rent FAQ About the Globrix meta tags. Proposal
globrix.latitude Globrix property information: The latitude of the property FAQ About the Globrix meta tags. Proposal
globrix.longitude Globrix property information: The longitude of the property FAQ About the Globrix meta tags. Proposal
globrix.outsidespace Globrix property information: External features of the property e.g. 'garden' FAQ About the Globrix meta tags. Proposal
globrix.parking Globrix property information: Parking available for property e.g. 'parking for 2 cars' FAQ About the Globrix meta tags. Proposal
globrix.period Globrix property information: Period of the property e.g. 'victorian terrace' FAQ About the Globrix meta tags. Proposal
globrix.poa Globrix property information: If the property price is only available on application FAQ About the Globrix meta tags. Proposal
globrix.postcode Globrix property information: Postcode of the property FAQ About the Globrix meta tags. Proposal
globrix.price Globrix property information: Price for the property FAQ About the Globrix meta tags. Proposal
globrix.priceproximity Globrix property information: The region of the attached price e.g. 'guide price of' FAQ About the Globrix meta tags. Proposal
globrix.tenure Globrix property information: The tenure of the property e.g. 'leasehold' FAQ About the Globrix meta tags. Proposal
globrix.type Globrix property information: Type of property e.g. 'semi-detatched house' FAQ About the Globrix meta tags. Proposal
globrix.underoffer Globrix property information: Indicates if the property is under offer FAQ About the Globrix meta tags. Proposal
go-import Defines a remote source code location and version control scheme for the Go programming language's toolchain. Content format: import-prefix vcs repo-root. go tool documentation Proposal
google Multiple purposes:

Used to declare text that should not be translated by the Google Translate plugin (<meta name="google" value="notranslate"> will declare the whole page should not be translated, while <span class="notranslate"> is for text or paragraph areas you wish to not be translated.

Used "[t]o tell Google not to show a Sitelinks search box when your site appears in the search results" (implement with content="nositelinkssearchbox") (already in use).

Presumably, multiple meta elements named "google" should all be parsed but this is may not have been explicitly specified anywhere. 		"notranslate": Google blog post

"nositelinkssearchbox": Google on Structured Data > Sitelinks Search Box 		Nontranslation: Proposal

No Sitelinks search box: Proposed
google-play-app Promoting Apps with Smart App Banners [8] Smart banners for Google Apps Proposal
google-site-verification Used to verify ownership for Webmaster Tools. Google documentation Proposal
gwt:property Used to specify the locale client property Locales in GWT Proposal
handheldfriendly Informs the BlackBerry browser that the content contained within the document is designed for small screens. BlackBerry (handheldfriendly "largely obsolete") Proposal
icas.datetime A point or period of time associated with an event in the lifecycle of the resource represented in terms of an ICAS date and time format of unspecified information density (may include full, long, medium, short, or compressed forms). a preliminary specification in the aaticas group on LinkedIn (http://www.linkedin.com/groups/aaticas-4034149). after a period of review, a specification for AAT ICAS meta keywords for HTML(5) will be referenced on an AAT ICAS area of the aatideas.org web site. Proposal
icas.datetime.abbr A point or period of time associated with an event in the lifecycle of the resource represented in terms of an ICAS abbreviated format such as "d2M03 t969". a preliminary specification in the aaticas group on LinkedIn (http://www.linkedin.com/groups/aaticas-4034149). after a period of review, a specification for AAT ICAS meta keywords for HTML(5) will be referenced on an AAT ICAS area of the aatideas.org web site. Proposal
icas.datetime.day A point or period of time associated with an event in the lifecycle of the resource represented in terms of ICAS day-of-year format such as "2012 day 333 t969". a preliminary specification in the aaticas group on LinkedIn (http://www.linkedin.com/groups/aaticas-4034149). after a period of review, a specification for AAT ICAS meta keywords for HTML(5) will be referenced on an AAT ICAS area of the aatideas.org web site. Proposal
icas.datetime.long A point or period of time associated with an event in the lifecycle of the resource represented in terms of ICAS long date format such as "UCN 12012 M03 Blue ❀ day 333 ❀ IDC zone(UT) t969 tt189". example <meta name="icas.datetime.long" content="UCN 12012 M03 Blue ❀ day 333 ❀ IDC zone(UT) t969 tt189"/> a preliminary specification in the aaticas group on LinkedIn (http://www.linkedin.com/groups/aaticas-4034149). after a period of review, a specification for AAT ICAS meta keywords for HTML(5) will be referenced on an AAT ICAS area of the aatideas.org web site. Proposal
icbm Defines geographic position to which page is related to. The acronym stands for ICBM Intercontinental Ballistic Missile - an old, humorous allusion to the possible use of such coordinates.
Example: 
<meta name="ICBM" content="47.0667, 15.4500" />
Like geo.position except for value syntax.
GeoURL documentation Proposal
IE_RM_OFF If set to "true", disables Internet Explorer 11 Reading View button adjacent to address bar when the page is detected to have content suitable for Reading View. This is intended for pages that are not articles and are not intended to be read in IE 11 Reading View. Microsoft: Reading View Guidelines and Information In the Code tab, at the bottom where Opt Out is read. Proposal


itemsPerPage Used to identify the number of search results returned per page. OpenSearch Specification Proposal
keywords-not Like keywords but instead keywords-not support Boolean NOT searches; useful for metaphors, satire/parody, and pages that say "this page is not about subject x" which therefore would be erroneously excluded by a NOT search against x. BrittleBit.org spec Proposal
license Is used to to define the license under which a website is published. Unofficial Documentation of license Proposal
license:uri Is used to to define the uri to the license, under which a website is published. Unofficial Documentation of license:uri Proposal
meta_date The date used to indicate that the Metadata has been prepared and/or reviewed and approved by the Metadata Unit. Its purpose is administrative. (Used by "Autonomy".) Health Canada Web Metadata Application Profile March 2009 Proposal
microtip Specifies the cryptocurrency address (bitcoin, etc.) for sending tips to the people responsible for creating this page's content. This tag is used by various browser plugins that want to compensate the site's creators. Since it's microtipping instead of micropayments, there is no need to specify an amount.

Example: 

<meta name="microtip" content="[bitcoin-address]">

Note: there can be multiple instances of this metatag on a page.

For full specification, see: http://autotip.io/docs/microtip-meta-tag Proposal
mobile-agent Specifies the mobile-compatible url of the web page. Used by mobile browsers and search engines to redirect mobile phone visitors to the proper mobile page.

The following properties can be used in the value of the content attribute:
url - The mobile-compatible url of the web page.
format - The format of the mobile page. An enum of "wml", "xhtml" and "html5".
Example: 

<meta name="mobile-agent" content="format=html5; url=http://3g.sina.com.cn/">
Baidu Mobile SEO Proposal
mobile-web-app-capable Sets whether a web application can be added standalone to a home screen and launched in fullscreen mode. Also proposed as a vendor-neutral version of apple-mobile-web-app-capable. Add to Homescreen - Google Chrome Mobile — Google Developers (though a WHATWG or W3C spec would be preferred) apple-mobile-web-app-capable (vendor specific synonym) Proposal
mobileoptimized Controls layout behavior in older versions of Internet Explorer (e.g., 6.5). Microsoft Windows Mobile 6.5 documentation Proposal
msapplication-config "Pinned Sites" in Windows 8

The "msapplication-config" metadata defines the path to a browser configuration file, letting you set pinned sites customizations (such as tile background, badge updates and notifications) with this external XML file rather than metadata within the HTML markup of webpages. 

<meta name="msapplication-config" content="IEconfig.xml" />

Note Without this metadata, IE11 looks for a default "browserconfig.xml" in the root directory of the server.

Browser configuration schema reference Proposal
msapplication-navbutton-color "Jump List" or "Pinned Sites" in Windows 7

The "msapplication-navbutton-color" metadata define the custom color of the Back and Forward buttons in the Pinned Site browser window. Any named color, or hex color value is valid. 

<meta name="msapplication-navbutton-color" content="#FF3300" />
Declaring Pinned Site Metadata Proposal
msapplication-notification "Pinned Sites" and "Live Tiles" in Windows 8.1

Used to make pinned sites on the start screen into live tiles. Usage: 

<META name="msapplication-notification" content="cycle=7;frequency=60;polling-uri=http://www.example.com/notifications.xml"  />
Pinned site metadata reference Proposal
msapplication-square150x150logo msapplication-square150x150logo

Specifies the image to use as the wide tile, which is 310x150 pixels at 100% scaling. 

<meta name="msapplication-square150x150logo" content="images/logo.png">

Note The msapplication-square150x150logo value is supported as of IE11 Preview and applies to tiles pinned to the Windows Start screen.

Pinned site metadata reference Proposal
msapplication-square310x310logo msapplication-square310x310logo

Specifies the image to use as the large tile, which is 310x310 pixels at 100% scaling. 

<meta name="msapplication-square310x310logo" content="images/largelogo.png">

Note The msapplication-square310x310logo value is supported as of IE11 Preview and applies to tiles pinned to the Windows Start screen.

Pinned site metadata reference Proposal
msapplication-square70x70logo msapplication-square70x70logo

Specifies the image to use as the small tile, which is 70x70 pixels at 100% scaling. 

<meta name="msapplication-square70x70logo" content="images/tinylogo.png">

Note The msapplication-square70x70logo value is supported as of IE11 Preview and applies to tiles pinned to the Windows Start screen.

Pinned site metadata reference Proposal
msapplication-starturl "Jump List" or "Pinned Sites" in Windows 7

The "msapplication-starturl" metadata contains the root URL of the application. The start URL can be fully qualified, or relative to the current document. Only HTTP and HTTPS protocols are allowed. If this element is missing, the address of the current page is used instead. 

<meta name="msapplication-starturl" content="./" />
Declaring Pinned Site Metadata Proposal
msapplication-tap-highlight Link highlighting in Internet Explorer

The "msapplication-tap-highlight" meta tag can be used to disable automatic highlighting of tapped links in Internet Explorer. Applies to IE10 on Windows Phone 8 and IE11 on Windows 8.1. 

<meta name="msapplication-tap-highlight" content="no" />
Link highlighting Proposal
msapplication-task "Jump List" or "Pinned Sites" in Windows 7

Jump List items act as entry points into the website even when the browser is not running. A Jump List can contain commonly used destinations and tasks. Some items apply to the whole site, and some apply only to specific users. For example, to add a single task called "Check Order Status" specify a meta element in the head of your webpage, as follows: 

<META name="msapplication-task" content="name=Check Order Status;
     action-uri=./orderStatus.aspx?src=IE9;
     icon-uri=./favicon.ico"  />
Tasks in Jump List Proposal
msapplication-TileColor The "msapplication-TileColor" metadata define the background color of a tile in Pinned Sites in Windows 8. The tile color can be specified as a hex RGB color using CSS’s #rrggbb notation, via CSS color names, or by the CSS rgb() function. 
<meta name="msapplication-TileColor" content="#d83434"/>
High Quality Visuals for Pinned Sites in Windows 8 Proposal
msapplication-TileImage The "msapplication-TileImage" metadata define the path to an image to be used as background for a tile in Pinned Sites in Windows 8. Tile images must be square PNGs 144px by 144px. 
<meta name="msapplication-TileImage" content="images/benthepcguy-144.png" />
High Quality Visuals for Pinned Sites in Windows 8 Proposal
msapplication-tooltip "Jump List" or "Pinned Sites" in Windows 7

The "msapplication-tooltip" metadata provides additional tooltip text that appears when you hover over the Pinned Site shortcut in the Windows Start menu or on the desktop. 

<meta name="msapplication-tooltip" content="Channel 9 Podcasts" />
Declaring Pinned Site Metadata Proposal
msapplication-wide310x150logo msapplication-wide310x150logo

Specifies the image to use as the medium tile, which is 150x150 pixels at 100% scaling. 

<meta name="msapplication-wide310x150logo" content="images/widelogo.png">

Note The msapplication-wide310x150logo value is supported as of IE11 Preview and applies to tiles pinned to the Windows Start screen.

Pinned site metadata reference Proposal
msapplication-window "Jump List" or "Pinned Sites" in Windows 7

The "msapplication-window" metadata sets the initial size of the Pinned Site window when it is launched for the first time. However, if the user adjusts the size of the window, the Pinned Site retains the new dimensions when it is launched again. The following properties can be used in the value of the content attribute:

  • width - The window width in pixels. The minimum value is 800.
  • height - The window height in pixels. The minimum value is 600.
<meta name="msapplication-window" content="width=1024;height=768" />
Declaring Pinned Site Metadata Proposal
MSSmartTagsPreventParsing Prevent a Microsoft browser from adding a certain kind of content to a page because users could be confused into thinking the added content was part of the original page. (It's likely only relatively few copies of the browser, a beta release never finalized, are still in the installed Win base, but the base is so large that even relatively few would still be a significant absolute quantity.)

This tag is used by Google: Custom Search Help: Meta Tags, as accessed 1-8-16. And "<meta content='true' name='MSSmartTagsPreventParsing'/>" appeared (with internal quote marks as singles) in the source code for <[9]>, as accessed 4-27-09. 		BrittleBit.org spec Proposal
msvalidate.01 One of the verification elements used by Bing. Bing Webmaster Tools Proposal
nonfiction To reduce the "fake news" problem, this lets well-meaning page authors label satire and parody appropriately in metatags although unlabeled in content (not explicitly labeling being common in satire and parody). Characterize the principal content of the page as nonfiction, fiction, mixed, or other. This way, other websites and users needn't be fooled. BrittleBit.org spec fiction (antonym; see spec for usage) Proposal
norton-safeweb-site-verification Used to verify ownership of Website for Norton SafeWeb. Norton SafeWeb Help Documentation Proposal
origin The origin meta tag is used to indicate the original source of a document. The origin meta tag Proposed
origin-trials Used to enable experimental browser features for sites which are registered to participate in experimental trials. Experimental Framework Trial Token Structure Proposal
p:domain_verify Used to register a site's domain with Pinterest as a "verified domain".

Example: 

 <meta name="p:domain_verify" content="5dd1c5f2db0ac0b521f08d56b4cd271b">
Pinterest Help Article Proposal
page-version When a page uploaded two or more times with the same last-modification date (per dc.modified, dcterms.modified, or article:modified_time metatag), distinguishing different uploads even on the same date can be done with the page-version metatag. BrittleBit.org spec Proposal
pingdom Used by Pingdom monitoring services as a heartbeat verification. The heartbeat service will only consider the request successful if it contains the "pingdom" meta tag, with the content set according to a per-customer key.

Example: 

<meta name="pingdom" content="6bh3nxnx"/>
Proposal
pinterest Used to block pinterest from linking to content on the URL.

Example: 

<meta name="pinterest" content="nopin"/>
Pinterest Help Article Proposal
prism:alternateTitle An alternate title or alternate headline for a resource that may be used in a table of contents, a popup etc. and can vary with platform. PRISM Basic Metadata Specification V3.0 Proposal
pro Signify expertise as judged by an authority. Counterpart to pro-auth (which see). Useful to search engines and Web directories. BrittleBit.org spec Proposal
pro-auth Signify an authority, subject to search engine's or directory's judgment of importance and credibility (the judgment could be by a human working for a search engine), so the authority's listing of experts can carry weight, making search results more useful.

Counterpart to pro (which see). Supported also by pro-auth-field (which see) and pro-auth-fragment (which see). 		BrittleBit.org spec Proposal
pro-auth-field Signify an authority's claimed field of expertise, importance and validity to be judged by search engine or directory. Supports pro-auth (which see). BrittleBit.org spec Proposal
pro-auth-fragment Signify which links from authority are links to experts, as distinct from other links. Supports pro-auth (which see). BrittleBit.org spec Proposal
rating The Restricted to Adults label (RTA) provides a way for adult oriented websites to indicate that their content is off limits to children. RTA was introduced in 2006 and is currently used by a large number of adult web content providers. RTA is recognized by all major parental control filters.

Example: 

<meta name="RATING" content="RTA-5042-1996-1400-1577-RTA" />
RTA documentation Proposal
referrer Controls whether the user agent includes the Referer header in HTTP requests originating from this document Referrer Policy referer Proposal
RepostUsAPIKey Used to verify ownership of Website for Repost syndication service Meta Headers used by Repost Proposal
ResourceLoaderDynamicStyles MediaWiki's ResourceLoader uses this name with content set to the empty string. The purpose is to mark the DOM position before which dynamic styles should be added. ResourceLoaderDynamicStyles Proposal
review_date The date a resource is scheduled for review by content creator in order to determine if it should be archived, updated or retained as is. Health Canada Web Metadata Application Profile March 2009

IMS 6001-1-2, Metadata for Recordkeeping and Web Content

Proposal
revision The revision of this page as reported by an underlying Version Control System. This is a free format string. Meta Revision Specification Proposal
revisit-after revisit-after is used to tell search engines how often to recrawl the page. To our knowledge only one search engine has ever supported it, and that search engine was never widely used — at this point, it is nothing more than a good luck charm. Google documentation Proposal
rights Assert legal rights for the page in a machine-parsable format. Rights could include those in copyright, for trade secrets, and in other intellectual property.

Talk 		BrittleBit.org spec Proposal
rights-standard The purpose is to enable search engines and other cataloging services to compile the types of rights allocated to the work. (Does any search engine actually implement this? hsivonen 07:34, 14 July 2011 (UTC))

This keyword does not provide, remove or alter any legal protections or designations.

Format: 

<meta name="rights-standard" content="element id;rights" />
  • element id - the HTML Element ID of the item these rights apply to
  • rights - what rights are assigned to the item
    • "pd" - Public domain
    • "cc by-sa" - Creative Commons Attribution
    • "cc by-nd" - Creative Commons NoDerivs
    • "cc by-nc" - Creative Commons Attribution-NonCommercial
    • "cc by-nc-sa" - Creative Commons Attribution-NonCommercial-ShareAlike
    • "cc by-nc-nd" - Creative Commons Attribution-NonCommercial-NoDerivs
 Spec Redundant with Microdata vocabulary for licensing works. Proposal
robots A comma-separated list of operators explaining how search engine crawlers should treat the content. This meta name is already supported by every popular search engine.
Possible values are "noarchive" to prevent cached versions, "noindex" to prevent indexing, and "nofollow" works as the link rel value with the same name.
The content value "NOODP" has been offered elsewhere, so I'm proposing it here. It blocks robots from using Open Directory Project descriptions of a website instead of Web pages' own meta descriptions. It may have been introduced by Microsoft.
The content value "NOYDIR" has been offered by Yahoo, so I'm proposing it here. It blocks Yahoo's robot from using the Yahoo directory's descriptions of a website instead of Web pages' own meta descriptions. Whether any other robot supports this is unknown but possibly no other search engine uses Yahoo's directory anyway. 		About the Robots <META> tag; NOODP value: Google, Yahoo, NOYDIR value: Yahoo, as accessed 4-28-09 baiduspider (for targeting Baidu or Baiduspider only)
citeseerxbot (for targeting CiteSeerX only)
googlebot (for targeting Googlebot only)
googlebot-mobile (for targeting Googlebot-Mobile)
ia_archive (for targeting Internet Archive (Wayback Machine) or Alexa only)
msnbot (for targeting Microsoft or Bing only)
slurp (for targeting Yahoo or slurp only)
teoma (for targeting TEOMA or Ask.com only) 		Proposal
rpuPlugin Version of installed Repost syndication service plugin Meta Headers used by Repost Proposal
rqid Request identifier of request that generated this page. RequestID Proposal
shareaholic:analytics Enables or disables Shareaholic Analytics for use with the Shareaholic Content Amplification system Shareaholic CAS Specification Proposal
shareaholic:article_author A URL to the profile of the author of the content of the webpage for use with the Shareaholic Content Amplification system Shareaholic CAS Specification Proposal
shareaholic:article_author_name Contains the name of the author of the content of the webpage for use with the Shareaholic Content Amplification system Shareaholic CAS Specification Proposal
shareaholic:article_modified_time When the article was last modified for use with the Shareaholic Content Amplification system Shareaholic CAS Specification Proposal
shareaholic:article_published_time When the article was first published for use with the Shareaholic Content Amplification system Shareaholic CAS Specification Proposal
shareaholic:article_visibility Specifies whether a webpage should be publicly recommendable for use with the Shareaholic Content Amplification system Shareaholic CAS Specification Proposal
shareaholic:drupal_version Specifies Shareaholic for Drupal module version for use with the Shareaholic Content Amplification system Shareaholic CAS Specification Proposal
shareaholic:image An image URL which represents your webpage for use with the Shareaholic Content Amplification system Shareaholic CAS Specification Proposal
shareaholic:keywords Keywords associated with the content of a webpage for use with the Shareaholic Content Amplification system Shareaholic CAS Specification Proposal
shareaholic:language Language of the content of the webpage for use with the Shareaholic Content Amplification system Shareaholic CAS Specification Proposal
shareaholic:outstreamads Enables or disables Shareaholic Outstream Ads for use with the Shareaholic Content Amplification system Shareaholic CAS Specification Proposal
shareaholic:shareable_page Specifies whether a webpage should be publicly shareable for use with the Shareaholic Content Amplification system Shareaholic CAS Specification Proposal
shareaholic:site_id Shareaholic Site ID for the website for use with the Shareaholic Content Amplification system Shareaholic CAS Specification Proposal
shareaholic:site_name The name which should be displayed for the overall site for use with the Shareaholic Content Amplification system Shareaholic CAS Specification Proposal
shareaholic:title Title associated with the content of a webpage for use with the Shareaholic Content Amplification system Shareaholic CAS Specification Proposal
shareaholic:url The canonical URL of your webpage that will be used as its permanent ID for use with the Shareaholic Content Amplification system Shareaholic CAS Specification Proposal
shareaholic:wp_version Specifies Shareaholic for WordPress plugin version for use with the Shareaholic Content Amplification system Shareaholic CAS Specification Proposal
signet:authors Authors of a page for use with javascript signet library Signet Revision Specification Proposal
signet:links links to related pages, for use with the javascript signet library Signet Revision Specification Proposal
skype_toolbar Prevents the Skype browser extension from automatically seeking through the page and replacing telephone numbers (or any number the program's algorithm thinks is a telephone number) with its own custom presentation that allows direct invocation of the Skype program to call the telephone number.

Example: 

<meta name="skype_toolbar" content="skype_toolbar_parser_compatible" />
Skype Info Proposal
startIndex Used to identify the index of the first search result in the current set of search results. OpenSearch Specification Proposal
startver Used to verify WebApps for JokeNetwork's Start!-WebApp JokeNetwork's Start Documentation Proposal
subject-datetime Identify the principal datetime ranges of the subject of the page’s content, such as the dates of an historical event. BrittleBit.org spec page-datetime

datetime-coverage
datetime-coverage-start
datetime-coverage-end
datetime-coverage-vague
 Proposal
subject-system Where another metatag provides a subject for the page, that subject should be selected in accordance with a standard system for classifying subjects, such as one used for academic or public libraries of books. This metatag identifies the system in use for the current page, using a standard controlled vocabulary of system identifiiers. BrittleBit.org spec subj-. . . or subj-* (namespace not approved thus synonym would be "subj-" plus whatever is after hyphen in token) Proposal
supported-media Indicates the range of media for which the page's viewing is supported. Not intended for use by browsers, but rather by referrers that make use of crawl data. supported-media spec Proposal
theme-color Indicates a color associated with the web site's theme. Web browsers might use this color to theme their UI to be consistent with the web site's color scheme.

Usage: <meta name="theme-color" content="papayawhip">

Defined in HTML Standard
thumbnail The full URL of a file that provides a thumbnail for the HTML page.

(Note: This violates HTML5, section 4.2.5.2, which says this, because the value is a URL, must be a link element and not a meta element, but Google already recommends and parses this as a meta element.) 		Google page, as accessed Jan. 2, 2016. Original date unknown. Proposed
topper Notify website visitors of later changes; easier for website authors to maintain than RSS or Atom. BrittleBit.org spec Proposal
topper-major Limit use of topper to major changes. BrittleBit.org spec Proposal
topper-minor In use of topper, include minor changes. BrittleBit.org spec Proposal
totalResults Used to identify the number of search results available for the current search. OpenSearch Specification Proposal
translator The translator meta tag is used to give credit to, and provide contact info for, the translator of a document. The translator meta tag Proposed
twitter:app:country If your application is not available in the US App Store, you must set this value to the two-letter country code for the App Store that contains your application. Proposal
twitter:app:id:googleplay String value, and should be the numeric representation of your app ID in Google Play. Proposal
twitter:app:id:ipad String value, should be the numeric representation of your app ID in the App Store. Proposal
twitter:app:id:iphone String value, should be the numeric representation of your app ID in the App Store. Proposal
twitter:app:name:googleplay Name of your Android app Proposal
twitter:app:name:ipad Name of your iPad optimized app Proposal
twitter:app:name:iphone Name of your iPhone app Proposal
twitter:app:url:googleplay Your app's custom URL scheme. Proposal
twitter:app:url:ipad Your app's custom URL scheme. Proposal
twitter:app:url:iphone Your app's custom URL scheme. Proposal
twitter:card The card type, which will be one of "summary", "photo", "app", or "player". Proposal
twitter:creator @username for the content creator / author. Proposal
twitter:creator:id Twitter ID for the content creator / author. Proposal
twitter:data1 String value; value for labels such as price, items in stock, sizes, etc Proposal
twitter:data2 String value; value for labels such as price, items in stock, sizes, etc Proposal
twitter:description A description of the content in a maximum of 200 characters. Proposal
twitter:domain Short URL assigned by Twitter to a website. Proposal
twitter:image A URL to the image representing the content. Proposal
twitter:image0 A URL to the image representing the first photo in your gallery. Proposal
twitter:image1 A URL to the image representing the second photo in your gallery. Proposal
twitter:image2 A URL to the image representing the third photo in your gallery. Proposal
twitter:image3 A URL to the image representing the fourth photo in your gallery. Proposal
twitter:image:height The height of the image representing the content. Proposal
twitter:image:src URL of image to use in the card. Image must be less than 1MB in size. Proposal
twitter:image:width The width of the image representing the content. Proposal
twitter:label1 String value; label such as price, items in stock, sizes, etc Proposal
twitter:label2 String value; label such as price, items in stock, sizes, etc Proposal
twitter:player HTTPS URL to iframe player. This must be a HTTPS URL which does not generate active mixed content warnings in a web browser Proposal
twitter:player:height Height of IFRAME specified in twitter:player in pixels Proposal
twitter:player:stream URL to raw stream that will be rendered in Twitter's mobile applications directly Proposal
twitter:player:stream:content_type The MIME type/subtype combination that describes the content contained in twitter:player:stream Proposal
twitter:player:width Width of IFRAME specified in twitter:player in pixels Proposal
twitter:site @username for the website used in the card footer. Proposal
twitter:site:id Twitter ID for the website used in the card footer. Proposal
twitter:title The title of the content as it should appear in the card. Proposal
twitter:url Canonical URL of the card content. Proposal
typemetal.formatprefs Per-file HTML formatting preferences used by the TypeMetal HTML editor TypeMetal User Guide Proposal
verify-v1 Superseded by google-site-verification. Legacy verification for Google Sitemaps. Inside Google Sitemaps: More about meta tag verification Proposal
version The version of a web application according to the Semantic Versioning specification

Example: 

<meta name="version" content="0.1.0+1">
Documentation Proposal
vfb-version Specifies a Visual Form Builder plugin version for Wordpress. Visual Form Builder Documentation and specs Proposal
viewport Provides a way for documents to specify (using markup rather than CSS) the size, zoom factor, and orientation of the viewport that is used as the base for the document's initial containing block. The following properties can be used in the value of the content attribute:
  • width
  • height
  • initial-scale
  • minimum-scale
  • maximum-scale
  • user-scalable

Examples: 

<meta name="viewport" content="initial-scale=1.0">
<meta name="viewport" content="width=480, initial-scale=2.0, user-scalable=1">
CSS Device Adaptation Proposal
web_author Credits the developer(s) responsible for the technical design of a website. Documentation designer - for visual presentation Proposal
witget Used to verify ownership for Witget.com.

Example <meta name="witget" content="XXXXXXXXXXXXXXXXXXXXXX">

Witget manual Proposal
wot-verification Used to verify ownership of WOT (Web Of Trust) WOT's verify your site wiki page Proposal
wt.ac Advertising Click parameter

When a visitor to your site clicks on an ad, that action is referred to as an Ad Click. The following META tag tracks advertising clicks: 

<META NAME="WT.ac" CONTENT="name">

Defines the name of the advertisement clicked to reach a particular web page. The Ad Click must contain an external redirect back to the client. The redirect needs to include the necessary code to generate a hit to the SDC server. You can designate multiple Advertising Clicks using semicolons. Examples: 

<a href="file111.html?WT.ac=CONTENT111">
<a href="file222.html?WT.ac=CONTENT222">

The name of the advertisement clicked to reach a particular web page. To capture this information with DCS, the Advertising Click must contain an external redirect back to the client. The redirect needs to

include the necessary code to generate a hit to the DCS. The maximum length for each name is 64 bytes.

Webtrends Parameters Proposal
wt.ad Advertising View parameter

Visitors often view advertisements that they do not necessarily click on. You can use On-Site Advertising to determine the number of visitors to your web site who view particular ads. With this feature you can produce advertising reports for each of your clients. If you are selling advertising space on your web site, for example, you can collect traffic statistics to help determine pricing schedules. The following META tag tracks advertising views: 

<meta name="WT.ad" content="My content">

An Ad View occurs when a visitor views a page containing an ad. An ad is a link or graphic that contains an Ad Click parameter in the query portion of it's URL.

Webtrends Parameters Proposal
wt.cg_n Name of the Content Group

Used to configure the appropriate Webtrends advanced feature. These are just some of the more popular ones. These appear in your META tags. – showing you the web page, the source (meta tag), the log files entry and the subsequent WT report. Example: 

<meta name="wt.cg_n" content="My content">
Webtrends Parameters Proposal
wt.cg_s Name of Content Sub-Group

Used to configure the appropriate Webtrends advanced feature. These are just some of the more popular ones. These appear in your META tags. – showing you the web page, the source (meta tag), the log files entry and the subsequent WT report. Example: 

<meta name="wt.cg_s" content="My content">
Webtrends Parameters Proposal
wt.mc_id Identifies the ID of the marketing campaign

To attract new students, a university launches a marketing campaign by sending recruitment email to all graduating high school seniors in a metropolitan area. The email links to a special landing page in the university’s web site, containing the following META tag to track marketing campaigns. Example: 

<META NAME="WT.mc_id" CONTENT="1X2GG34">

You may use this parameter on the URL. Example: 

<a href="link?WT.mc_id=1X2GG34">

The Campaign ID 1X2GG34 represents recruits to be contacted by email

Webtrends Parameters Proposal
WT.si_n Scenario analysis parameter - scenario name

This defines a scenario name for the page or set of pages to be included in the scenario. This in turn produces a funnel type report in Webtrends. Example: 

<meta name="WT.si_n" content="my_scenario_name">
Webtrends Parameters. Proposal
WT.si_p Scenario analysis parameter - scenario step name

This defines a scenario step name for the page or set of pages to be included in the scenario. This in turn produces a funnel type report in Webtrends. It works when paired with metedata tag name WT.si_n. Example: 

<meta name="WT.si_p" content="my_scenario_step_name">
Webtrends Parameters. Proposal
WT.si_x Scenario analysis parameter - scenario step number

This defines a scenario step number for the page or set of pages to be included in the scenario. This in turn produces a funnel type report in Webtrends. It works when paired with metedata tag name WT.si_n, and as an alternative to Wt.si_p. Example: 

<meta name="WT.si_x" content="my_scenario_step_number">
Webtrends Parameters. Proposal
wt.sv Tracking Servers parameter

If your site is hosted on multiple servers, a server cluster, or a server farm, and you want to evaluate the performance of your load balancer, Webtrends can track page views for each server. To do so, populate the following META tag on all pages on each server: Example: 

<meta name="WT.sv" content="My Server">

Defines the name of the machine that serves the web page. If you have two servers (Server1 and Server2), you would make two copies of the META tag and designate CONTENT=“Server1” for deployment to pages on the first server and CONTENT=“Server2” for deployment to the same pages on the second server. For a server farm, you can extract the value of the built-in server name and dynamically assign it to the META tag using server-side scripting. Example: 

<meta name="WT.sv" content="Server1">
<meta name="WT.sv" content="Server2">

An Ad View occurs when a visitor views a page containing an ad. An ad is a link or graphic that contains an Ad Click parameter in the query portion of it's URL.

About WT.ad. Proposal
wt.ti Tracking Page Titles

You may want to modify a page title before sending it to Webtrends in the following cases:

  • You are dealing with dynamic content pages identified by URL parameters, and the page title represents the title of the base URL page rather than the dynamic content page.

Unless you modify the page titles, all pages have the same title in the reports.

  • All pages have been assigned the same title, for reasons of style or company policy.

Even though URLs are displayed in addition to page title, the entire URL cannot be depended upon to distinguish one page from another. Use server-side scripts to change the title to something that reflects the content of the pages so that you can identify them in reports. Next, pass the customized page titles to Webtrends, using the following META tag: 

<META NAME="WT.ti" CONTENT="title">

Defines the name of the title for this page.

Webtrends Parameters Proposal
y_key Used to verify ownership for Yahoo! Site Explorer Yahoo! documentation Proposal
yandex-verification Used to verify ownership for Yandex Webmaster. Yandex Webmaster ownership verification Proposal
ZOOMCATEGORY Category of page to be grouped in Wrensoft Zoom Search Engine. Wrensoft Zoom Meta Documentation Proposal
ZOOMDESCRIPTION Alternative page description for Wrensoft Zoom Search Engine. Wrensoft Zoom Meta Documentation Proposal
ZOOMIMAGE URL to image to be displayed alongside result in Wrensoft Zoom Search Engine. Wrensoft Zoom Meta Documentation Proposal
ZOOMPAGEBOOST Page boost factor to increase or decrease the relevance of page in Wrensoft Zoom Search Engine. Wrensoft Zoom Meta Documentation Proposal
ZOOMTITLE Alternative page title for Wrensoft Zoom Search Engine. Wrensoft Zoom Meta Documentation Proposal
ZOOMWORDS Additional keywords to be indexed for Wrensoft Zoom Search Engine. Wrensoft Zoom Meta Documentation Proposal

Proposals That Don't Meet the Requirements For a Registration

Note that these proposals can be moved back to the registry table if the problems listed in the rightmost column of this table are addressed.

Keyword Brief description Link to specification Synonyms Status Registration requirement failure
blogcatalog Used to verify ownership of Blog Catalog.com Blog catalog site Incomplete proposal Claimed spec link is not a link to a spec
created The datetime at which the document was created. The value is an ISO8601 date. The date MUST follow the W3C Profile of ISO 8601 with a granularity of "Complete date:" or finer. The BBC use this name. Incomplete proposal Lacks link to a spec
expires meta name='expires' defines the expiration date of the page. This can be used for web pages in preparation for an upcoming event, e.g. a registration form for an exposition or competition, or other cases with a pre-set date when the document will no longer be valid, e.g. a product offer in a special sale or a support page for a product known not to be supported anymore from a given time onward.

Search engines should respond to this meta tag in a reasonable way, i.e. by removing the page from their main search results after the expiration date (possibly still returning the result in a special search for expired pages as long as the page exists and is not explicitly excluded via robots.txt or meta name='robots' etc.) or simply by indicating to the user that this result is out-of-date.

The content attribute should define the expiration date in accordance with http://www.w3.org/TR/NOTE-datetime . The meta tag should not be used for pages without expiration date. However, for historical reasons, search engines should also interpret other date formats where possible and should be prepared to find values such as "", "0", "no" and "never". Such non-date values are to be interpreted as no expiration date.

Correctly formatted example: 

<meta name='expires' content='2012-12-31T23:59Z'>

This tag is not to be confused with and has a different meaning than meta http-equiv='expires'.

Incomplete proposal Lacks link to a spec
fb:admins Open Graph Protocol by Facebook developers Facebook developers Incomplete proposal The spec specifies this to be a value of the property attribute--not a meta keyword
fb:page_id Open Graph Protocol by Facebook developers Facebook developers Incomplete proposal The spec specifies this to be a value of the property attribute--not a meta keyword
gm-gpx-v Wordpress Plugin Google Maps GPX Viewer Google Maps GPX Viewer Incomplete proposal Claimed spec link is not a link to a spec
google-translate-customization Used to verify ownership for Website Translator. <meta name="google-translate-customization" content="Your Website Code Goes Here. Generated When Adding The Google Translate Plugin To Your Site" /> Incomplete proposal Lacks link to a spec
nextgen Used for nextgen gallery plugin in wordpress Alexa FAQ About this meta attribute Reference Incomplete proposal Unrelated spec link
nibbler-site-verification Used to verify ownership of Nibbler site Nibbler site Incomplete proposal Claimed spec link does not link to a spec
og:description Open Graph Protocol by Facebook developers Facebook developers Incomplete proposal The spec specifies this to be a value of the property attribute--not a meta keyword
og:image Open Graph Protocol by Facebook developers Facebook developers Incomplete proposal The spec specifies this to be a value of the property attribute--not a meta keyword
og:site_name Open Graph Protocol by Facebook developers Facebook developers Incomplete proposal The spec specifies this to be a value of the property attribute--not a meta keyword
og:title Open Graph Protocol by Facebook developers Facebook developers Incomplete proposal The spec specifies this to be a value of the property attribute--not a meta keyword
og:type Open Graph Protocol by Facebook developers Facebook developers Incomplete proposal The spec specifies this to be a value of the property attribute--not a meta keyword
og:url Open Graph Protocol by Facebook developers Facebook developers Incomplete proposal The spec specifies this to be a value of the property attribute--not a meta keyword
property="og:*" Metadata used by the Open Graph protocol (used by Facebook). Note: currently these are defined as: <meta property="og.*" content="x"/> FAQ About the Open Graph protocol from Facebook. Doesn't belong in this registry Not a value to be used in the name attribute
resolutions Authoring web sites to use resolution independent images that display beautifully on high-resolution displays should be made as easy as possible for developers and should not require JavaScript to accomplish.

To accomplish this, I propose a new HTML Meta Tag, resolutions, that can be used to specify that high-resolution versions of images linked to from the page are available and that the browser should use them in place of the lower-resolution default images if it detects that a user is using a high-resolution screen. The resolutions meta tag lists the device-pixel ratios supported by images in the page.

So, for example… 

<meta name="resolutions" content="2x">

… means that the developer is telling the browser that she has created 2x resolution images for the images linked to from the current page and named them with a @2x suffix.

To illustrate, if her image tag is as follows… 

<img src="/images/flower.jpg" alt="A flower">

… then she has two image files under /images: the low-resolution default (flower.jpg), and a higher-resolution (200%) version named [email protected].

(This is the same naming convention already used by Apple in its Cocoa Touch framework for automatically loading in higher-resolution versions of images.)

Based on the meta tag, if the browser detects that the user is running at a min-device-pixel-ratio of 2.0, it will automatically ask for the 2x version of the image ([email protected]) instead of the default image as specified in the image tag.

Finally, so as not to flood external sites with high-resolution image requests, this functionality would only work for local images specified via relative links.

Multiple resolutions

The resolutions tag can also contain a list of supported device-pixel ratios so as to support even higher-resolution displays when and if they become available in the future.

For example: 

<meta name="resolutions" content="2x, 4x, 8x">

In this case, the developer would provide 2x, 4x, and 8x versions of all images. So, in the running example, she would make flower.jpg, [email protected], [email protected], and [email protected].

Advantages

The advantages of this approach are several:

  1. Makes it very simple for developers to support high-resolution displays like the iPhone 4's Retina screen
  2. Does not require JavaScript
  3. Does not change the default way that things work (if the meta tag is not specified, the browser simply behaves as it always has).
 Proposal for native browser support of high-resolution image substitution

How to make your web content look stunning on the iPhone 4’s new Retina display

Incomplete proposal Lacks link to a spec

Failed Proposals

Keyword Brief description Link to more details Synonyms Status
bot-. . . Old MetaExtensions revision diff & edit Unendorsed
cache This doesn't actually work; use HTTP headers instead.
Value must be "public", "private", or "no-cache". Intended as a simple way to tell user agents whether to store a copy of the document or not. An alternate for HTTP/1.1's cache-control; for publishers without access to modifying cache-control. 		none Unendorsed
DC. Dublin Core, maintained by Dublin Core MetaData Initiative (DCMI), is an extensive system with some overlap with non-DC names.
This reserves all strings that begin with DC and a dot. Not true; DC-HTML doesn't use hardwired prefixes, but defines the prefixes using link/@rel="scheme.prefix" 		DCMI Unendorsed
dir-content-pointer No longer useful. The function is better performed with HTML markup. Old MetaExtensions revision diff & edit Unendorsed
no-email-collection HTML5 prohibits URL-valued meta names. They should be rel keywords instead.
Intended to reference legal policy of web site indicating that harvesting of e-mail addresses on the site is not permitted and in violation of applicable laws such as the CAN-SPAM Act of 2003. 		Project Honey Pot Unendorsed
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