Another HTML-Lint is another HTML checker written in Perl. This package includes individual command and CGI gateway. Invoking htmllint without any argument puts the usage string. It supports various HTML versions and variants. From usage string: HTML1.0, HTML2.0, HTML2.x, HTML+, HTML3.0, HTML3.2, HTML4.0 Strict, HTML4.0 Transitional, HTML4.0 Frameset, HTML4.0 Mobile, HTML4.01 Strict, HTML4.01 Transitional, HTML4.01-frameset, XHTML1.0 Strict, XHTML1.0 Transitional, XHTML1.0 Frameset, XHTML1.1, XHTML Basic, ISO/IEC 15545, Netscape Navigator (2.0, 3.0, 4.0), Microsoft Internet Explorer (3.0 beta, 3.0, 4.0, 5.0, 5.5), IBM WebExplorer 1.1, Compact HTML, NTT DoCoMo iMode (1.0, 2.0), J-SkyWeb, J-SkyWeb Station, TTNet dot-i, HTML variant for patent application in Japan