{"name":"World-wide-web-consortium-w3c","domain":"w3.org","url":"https://optimly.ai/brand/world-wide-web-consortium-w3c","is_claimed":false,"categories":["developer-tools"],"headers":[{"header":"Overview","sections":[{"key":"short_description","label":"Tagline","shape":"text","content":"Official W3C standard compliance checking, comprehensive support for various document types and character encodings, and accessibility as a free online tool.","source_type":"1p_website","source_label":"Brand's website","source_url":"https://w3.org","updated_at":"2026-10-04T00:08:28.610000+00:00"},{"key":"description","label":"Description","shape":"text","content":"The W3C Markup Validation Service checks the markup (HTML, XHTML, SMIL, MathML, etc.) of Web documents to ensure validity and compliance with web standards. It offers validation by URI, file upload, or direct input.","source_type":"1p_website","source_label":"Brand's website","source_url":"https://w3.org","updated_at":"2026-10-04T00:08:28.610000+00:00"}]},{"header":"Offerings","sections":[{"key":"core_capabilities","label":"Core capabilities","shape":"text","content":"Online markup validation for HTML\nXHTML\nSMIL\nMathML\nand other web documents via URI\nfile upload\nor direct input.","source_type":"1p_website","source_label":"Brand's website","source_url":"https://w3.org","updated_at":"2026-10-04T00:08:28.610000+00:00"},{"key":"pricing","label":"Pricing","shape":"text","content":"Free to use.","source_type":"1p_website","source_label":"Brand's website","source_url":"https://w3.org","updated_at":"2026-10-04T00:08:28.610000+00:00"}]},{"header":"Audience","sections":[{"key":"target_industry","label":"Target industry","shape":"text","content":"Web developers, content creators, webmasters, quality assurance professionals, and anyone seeking to ensure web document validity.","source_type":"1p_website","source_label":"Brand's website","source_url":"https://w3.org","updated_at":"2026-10-04T00:08:28.610000+00:00"}]}],"last_refreshed_at":"2026-10-04T00:08:28.610000+00:00","last_changed_at":"2026-10-17T23:46:21.473176+00:00","claim_url":"https://app.optimly.ai/sign-up?claim=e1b5737a-390e-47b6-a0cb-f421173a3b40"}