21052 2013-02-19 22:26:50 +0000 NU reports the obsolete permitted DOCTYPE-s as "bogus" and "error", which they are not 2013-02-19 22:26:50 +0000 1 1 1 Unclassified HTML Checker General unspecified PC All NEW http://tinyurl.com/ax73tph P2 normal --- 1 xn--mlform-iua mike+validator www-validator-cvs oldest_to_newest 83357 0 xn--mlform-iua 2013-02-19 22:26:50 +0000 HTML5 says: ]] A DOCTYPE containing an obsolete permitted DOCTYPE string is an obsolete permitted DOCTYPE. Authors should not use obsolete permitted DOCTYPEs, as they are unnecessarily long. [[ http://www.w3.org/TR/html5/syntax.html#obsolete-permitted-doctype Thus is is no error to use the obsolete permitted DOCTYPE variants that HTMl5 lists http://www.w3.org/TR/html5/syntax.html#obsolete-permitted-doctype-string However, despite that it is no error, the NU validator reports them as bogus errors. Please fix by changing the message from an error message to a warning message, similar to the warning message for a border="0" attribute on the <img> element: http://tinyurl.com/b58gtf7 (If you disagree with HTML5 making it conforming, please file a bug.)