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What is W3C Validation?

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antony Offline referral

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Could anybody tell me what is W3c validation?
chod Offline referral

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Seriously man learn to research things yourself, this is something you could have already had an answer to.

Quote: The Markup Validator is a free service by W3C that helps check the validity of Web documents.

Most Web documents are written using markup languages, such as HTML or XHTML. These languages are defined by technical specifications, which usually include a machine-readable formal grammar (and vocabulary). The act of checking a document against these constraints is called validation, and this is what the Markup Validator does.

Validating Web documents is an important step which can dramatically help improving and ensuring their quality, and it can save a lot of time and money (read more on why validating matters). Validation is, however, neither a full quality check, nor is it strictly equivalent to checking for conformance to the specification.

This validator can process documents written in most markup languages. Supported document types include the HTML (through HTML 4.01) and XHTML (1.0 and 1.1) family, MathML, SMIL and SVG (1.0 and 1.1, including the mobile profiles). The Markup Validator can also validate Web documents written with an SGML or XML DTD, provided they use a proper document type declaration.

This validator is also "An HTML validating system conforming to International Standard ISO/IEC 15445—HyperText Markup Language, and International Standard ISO 8879—Standard Generalized Markup Language (SGML)" – which basically means that in addition to W3C recommendations, it can validate according to these ISO standards.

Related resources include:

The Documentation for the Markup validation contains a lot of information on usage, installation, and development. Notably, the Help and FAQ document contains a lot of information, and is a recommended reading.
The Source code availability information page .
The development roadmap for this service.
How to provide feedback on The W3C Markup Validation Service.
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marcus_avrelius Offline referral

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W3c validation is used to test your website or webpage for code quality and errors!
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