Validator.nu Common Input Parameters

Validator.nu accepts the following parameters regardless of input method. How these parameters are communicated depends on the input method.

Validator.nu has a generic facet at http://validator.nu/ and an (X)HTML5 facet at http://html5.validator.nu/. Some parameters apply only to the generic facet. All parameters listed here are optional.

Parameters for both the generic and HTML5 facets

out

Value	Format
none	HTML
xhtml	XHTML
xml	XML
json	JSON
text	Human-readable text (not for machine parsing)

showsource

The only supported value is yes which means that source is shown (if supported by the output format).

Parameters for the generic facet only

schema

This parameter takes a space-separated list of schema IRIs (http or https). The schemas can be RELAX NG 1.0 schemas, Schematron 1.5 schemas or identifiers for built-in non-schema-based checkers.

laxtype

The only supported value is yes which means that RFC 3023 character encoding defaults are disrespected and text/html is accepted as an XML MIME type.

parser

Value	Meaning
none	Choice of HTML or XML parser is based on Content-Type. HTML parser configuration is based on doctype. XML parser does not load external entities.
xml	XML parser, will not load external entities
xmldtd	XML parser, will load external entities
html	HTML parser, configuration is based on doctype.
html5	HTML parser in the HTML5 mode.
html4	HTML parser insisting on HTML 4.01 Strict doctype and emitting additional HTML 4 errors that are not HTML5 errors.
html4tr	HTML parser insisting on HTML 4.01 Transitional doctype and emitting additional HTML 4 errors that are not HTML5 errors.

See also

• Validator.nu Web Service Interface