Validator

Look up validator in Wiktionary, the free dictionary.

A validator is a <a href="/facts/Computer_program/e38jH9N9">computer program</a> used to check the <a href="/facts/Validity_(logic)/oMGkywGC">validity</a> or syntactical correctness of a fragment of code or document. The term is commonly used in the context of validating <a href="/facts/HTML/sSc3fT78">HTML</a>, <a href="/facts/Cascading_Style_Sheets/tA90XBQo">CSS</a>, and <a href="/facts/XML/clNgUfWk">XML</a> documents like <a href="/facts/RSS_(file_format)/WBAWrkdj">RSS</a> 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 <a href="/facts/Web_page/5JK7xQLe">web page</a> or a <a href="/facts/Web_site/SAsjJnca">web site</a> with respect to one or more <a href="/facts/Web_accessibility/JsA6wN2l">accessibility guidelines</a> (such as <a href="/facts/WCAG/VuQclzWW">WCAG</a>, <a href="/facts/Section_508/b4TVnEqy">Section 508</a> or those associated with national laws such as the <a href="/facts/Stanca_Act/FwEdPwGB">Stanca Act</a>).

Validator open-in-new

Validator