Help for The W3C Markup Validation Service
What other validators are there? How does The Validator work? How do I send feedback/bug reports about the Markup Validator? How do I use the Markup validator? What is (are) this (these) error message(s)? I don't want error messages, I want you to clean up my page! My document is valid, can I use your "valid" icon? Is there a list of all available icons somewhere? Why do I see warnings about "insecure items" when viewing my page after including the icon? Can I modify the existing icons to create my own?