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Validator.nu GET Input
This document is obsolete.
For the current specification, see: https://github.com/validator/validator/wiki/GET-input
To use Validator.nu as a Web service via GET, the client issues an HTTP request either to https://validator.nu/ or https://html5.validator.nu/ using the GET method. The IRI (http or https.) of the document to check is encoded as a query string parameter called doc. Common parameters are also encoded as query string parameters.
Only & is supported as a query parameter separator. ; is not supported.
Percent-encoded octets in the query string must decode to UTF-8.