Which Web-based validation tool is used to validate HTML documents?

The correct answer is C. www.validator.w3.org. www.validator.w3.org is the official HTML validation service maintained by the World Wide Web Consortium (W3C), the standards body that defines HTML itself - making it the authoritative tool for checking whether HTML documents conform to web standards. The distractors serve diffe

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How the community answered

(32 responses)

A
16% (5)
B
3% (1)
C
75% (24)
D
6% (2)

Explanation

www.validator.w3.org is the official HTML validation service maintained by the World Wide Web Consortium (W3C), the standards body that defines HTML itself - making it the authoritative tool for checking whether HTML documents conform to web standards.

The distractors serve different purposes: www.vischeck.com simulates how images appear to people with color blindness (accessibility, not HTML validation); www.jigsaw.w3.org is W3C's CSS validator, not HTML (a common trap since it's on the same domain); and www.cynthiasays.com tests web pages for accessibility compliance (Section 508/WCAG), not HTML syntax validity.

Memory tip: Think "validator" = validate - the URL literally contains the word validator, and since W3C owns the HTML standard, their domain (w3.org) is the logical home for it.

Topics

#HTML validation#W3C validator#markup validation#web tools

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