Your page doesn't validate, and you don't know why, or you have a question about HTML , stylesheets or validation? First, check our Help and FAQ document, as ...
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This validator checks the markup validity of Web documents in HTML, XHTML, SMIL, MathML, etc. If you wish to validate specific content such as RSS/Atom feeds or ...
Why validate? Who owns/maintain the Markup Validator? What other validators are there? How do I send feedback/bug reports about the Markup Validator?
Dec 23, 2020 · Hmmm… seemingly the Markup Validation Service site itself is having issues this morning. I went there trying to get a screenshot or two for ...
Check the markup (HTML, XHTML, …) of Web documents. How to Contribute. The W3C Markup Validator is an entirely open source project hosted by W3C: there are ...
This validator can process documents written in most markup languages. Supported document types include the HTML (through HTML 4.01) and XHTML (1.0 and 1.1) ...
Nov 16, 1999 · http://validator.w3.org/feedback.html · This message: Message body; Respond; More options · Related messages: Next message · Previous message ...
I have been trying to validate HTML code on my blog. So I went to use The W3C Markup Validation Service. And since I really dont know how to.
This document is an overview of how developers can modify the Markup Validator, and how to contribute to the development of the project.
Apr 23, 2018 · The W3C validators for html and css are no longer recognizing the correct referrer url from my website (they used to).