HTML Checking for Large Sites

Rocket Validator automatically checks your pages on the W3C Validator.

Bad value “https://www.w3.org/1999/xlink” for the attribute “xmlns:link” (only “http://www.w3.org/1999/xlink” permitted here).

The only permitted value for the xmlns:link attribute is http://www.w3.org/1999/xlink.

Although using https in the URL looks like it’s going to be more secure, in fact this URL is not used to connect it to, only to declare the namespace.

Learn more:

Related W3C validator issues

Still checking your large sites one page at a time?

Save time using our automated web checker. Let our crawler check your web pages on the W3C Validator.