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AChecker is a second generation evaluation tool used to assess the accessibility of Web content to people with disabilities, using a variety of international standards.
ht://Check is more than a link checker. It's particularly suitable for checking broken links, anchors and web accessibility barriers, but retrieved data can also be used for Web structure mining. Uses a MySQL backend. Derived from ht://Dig.
OpenWolf is a web accessibility guidelines validator. By default, it checks websites against the WAI checkpoints. It supports CSS and poorly written HTML, and It is easily customised for any particular requirements.
Looking for a way to publish your contents on the web? Something for the standardista in you? Accessibility totally matters and semantics is what you want? Look no further, try 3co!
wuhkag is a Web application written in PHP for evaluating Web sites accessibility and publishing an HTML accessibility policy. It supports W3C WCAG 1.0 and requires PHP 4; future developments include XML and EARL output support, with XSL i18 policies