the Web's Universal Conformance Checker - ALPHA Test Version

Validate by URI
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Validate by File Upload
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Validate by direct input
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Latest News

September 2008: public preview, phase 2

The public preview of the Unicorn framework gets a massive update after two summers of code and spec improvements. All the changes, aimed at making the unicorn framework faster, more reliable and easier to integrate with validators and web observation tools, include:

September 2006: public preview

Welcome to the public preview of the unicorn tool. To learn more about this tool or how you can provide feedback for this preview, check the W3C QA Weblog.

Note: You need to enable Javascript to be able to check documents.

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