Here are the validation services currently provided by the W3C 1:
- W3C Semantic Data Extractor
- W3C Link Checker
- W3C WebLight – Illumit
- W3C Markup Validation Service
- W3C CSS Validation Service
- W3C RDF Validation Service
- W3C Atom and RSS Feed Validation Service
- W3C P3P Validator
- W3C XML Schema Checking Service
- W3C MUTAT Developer Information
References
- 1 As listed at W3C Quality Tips for Webmasters
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