From Wikipedia, the free encyclopedia

A validator is a computer program 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,[1][2] CSS, and XML 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 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).

See also[edit]


  1. ^ Lemay, Laura (1995). Teach Yourself More Web Publishing with HTML in a Week. Indianapolis, Ind: Pub. p. 198. ISBN 9781575210056.
  2. ^ Tittel, Ed, and Mary C. Burmeister. HTML 4 for Dummies. --For dummies. Hoboken, NJ: Wiley Pub, 2005.

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