There is an ongoing outage on the primary CPAN mirror. It is possible to work around the issue by using MetaCPAN as a mirror.

Revision history for W3C::XHTML::HTMLCompatChecker
==================================================

0.10 Thu 12 June 2008
---------------------

   * modularized the original cgi script into a perl module proper
   * added test suite

0.01 Tue 15 August 2006
-----------------------

   * (15 Aug 2006) initial version, as a CGI script based on an XML parser