HTML::Lint is a pure-Perl HTML parser and checker for syntactic legitmacy. . The "weblint" script - provided in the separate package "weblint-perl" - is a wrapper around the HTML::Lint. . You can also look into Apache::Lint which is a mod_perl wrapper around HTML::Lint. . Finally, for those of you doing automated testing with Test::More and its brethren, Test::HTML::Lint lets you automate HTML checking.
