A validator is a

computer program A computer program is a sequence or set of instructions in a programming language for a computer to Execution (computing), execute. It is one component of software, which also includes software documentation, documentation and other intangibl ...

used to check the validity or syntactical correctness of a fragment of code or document. The term is commonly used in the context of validating

HTML Hypertext Markup Language (HTML) is the standard markup language for documents designed to be displayed in a web browser. It defines the content and structure of web content. It is often assisted by technologies such as Cascading Style Sheets ( ...

,Tittel, Ed, and Mary C. Burmeister. HTML 4 for Dummies. --For dummies. Hoboken, NJ: Wiley Pub, 2005. CSS, and

XML Extensible Markup Language (XML) is a markup language and file format for storing, transmitting, and reconstructing data. It defines a set of rules for encoding electronic document, documents in a format that is both human-readable and Machine-r ...

documents like RSS feeds, though it can be used for any defined format or language. ''Accessibility validators'' are automated tools that are designed to verify compliance of a

web page A web page (or webpage) is a World Wide Web, Web document that is accessed in a web browser. A website typically consists of many web pages hyperlink, linked together under a common domain name. The term "web page" is therefore a metaphor of pap ...

or a web site with respect to one or more accessibility guidelines (such as WCAG, Section 508 or those associated with national laws such as the Stanca Act).

References

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External links

W3C The World Wide Web Consortium (W3C) is the main international standards organization for the World Wide Web. Founded in 1994 by Tim Berners-Lee, the consortium is made up of member organizations that maintain full-time staff working together in ...

'
HTML Validator
* W3C'
CSS Validator
Debugging HTML XML software

See also

References

External links