(X)HTML5 Website Validator



Use this Validator to check if your website still uses the latest HTML5 markup language..

HTML5 is a markup language for structuring and presenting content for the World Wide Web, and is a core technology of the Internet originally proposed by Opera Software. It is the fifth revision of the HTML standard (created in 1990 and standardized as HTML4 as of 1997) and, as of September 2012, is still under development. Its core aims have been to improve the language with support for the latest multimedia while keeping it easily readable by humans and consistently understood by computers and devices (web browsers, parsers, etc.). HTML5 is intended to subsume not only HTML 4, but XHTML 1 and DOM Level 2 HTML as well.

- (X)HTML5 validation.
- RELAX NG validation—XML syntax and Compact Syntax
- Schematron 1.5 validation
- NVDL-driven validation.
- XML 1.0 and HTML5 parsing.

Tags: xhtml5 website validator , validate html5 code

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