HTML Validation Service

This is an easy-to-use HTML validation service based on an SGML parser. It checks HTML documents for compliance with W3C HTML Recommendations and other HTML standards.

Recent updates

August 24, 1999
Added support for HTML 4.01; updated XHTML 1.0 DTDs
April 8, 1999
Added username/password proxying
March 4, 1999
Added support for XHTML
Feb 25, 1999
Added support for Japanese character encodings

You can also check your Cascading Style Sheets using W3C's CSS Validation Service.

Validate Documents by URI

Enter the location of a document you would like validated:

Include Weblint results run Weblint in "pedantic" mode
Show source input Show an outline of this document
Show parse tree exclude attributes from the parse tree

See Also


This service uses:

Valid HTML 4.0! Gerald Oskoboiny $Date: 1999/10/07 18:28:46 $