W3C markup validation tools

E29564
software tool web validation service suite

W3C markup validation tools are online and software-based services provided by the World Wide Web Consortium that check web documents for compliance with HTML, XHTML, and other web standards.

Try in SPARQL Jump to: Surface forms Statements Referenced by

All labels observed (4)

Label Occurrences
W3C Link Checker 2
W3C Markup Validation Service 2
W3C markup validation tools canonical 1

Statements (51)

Predicate Object
instanceOf software tool ⓘ
web validation service suite ⓘ
accessURL https://jigsaw.w3.org/css-validator/ ⓘ
https://validator.w3.org/ ⓘ
checks CSS property and value validity ⓘ
attribute value correctness ⓘ
character encoding declarations ⓘ
conformance to document type definition ⓘ
document type declaration ⓘ
syntax errors in markup ⓘ
use of deprecated elements ⓘ
deploymentModel downloadable software ⓘ
online service ⓘ
implementsStandard W3C CSS specifications ⓘ
W3C Recommendation ⓘ
surface form: W3C HTML specifications

MathML ⓘ
surface form: W3C MathML specifications

SVG ⓘ
surface form: W3C SVG specifications

XHTML ⓘ
surface form: W3C XHTML specifications

W3C Technical Reports ⓘ
surface form: W3C XML specifications
license open source license ⓘ
maintainer W3C Team ⓘ
output error messages ⓘ
validation report ⓘ
warnings ⓘ
provider World Wide Web Consortium ⓘ
purpose check web documents for compliance with web standards ⓘ
relatedTool W3C Unicorn ⓘ
surface form: W3C CSS Validation Service

W3C markup validation tools self-linksurface differs ⓘ
surface form: W3C Link Checker

W3C markup validation tools self-linksurface differs ⓘ
surface form: W3C Markup Validation Service

W3C Unicorn ⓘ
shortName W3C markup validation tools self-linksurface differs ⓘ
surface form: W3C validators
supportsAutomation command-line usage ⓘ
integration into build processes ⓘ
supportsInputMethod URI input ⓘ
direct markup input ⓘ
file upload ⓘ
targetUser QA engineers ⓘ
web designers ⓘ
web developers ⓘ
useCase education about web standards ⓘ
quality assurance for websites ⓘ
web accessibility support ⓘ
validates ARIA usage in markup ⓘ
CSS ⓘ
HTML ⓘ
HTML5 ⓘ
MathML ⓘ
RDFa ⓘ
SVG ⓘ
XHTML ⓘ
XML ⓘ

Referenced by (6)

Full triples — surface form annotated when it differs from this entity's canonical label.

Dave Raggett → contributedTo → W3C markup validation tools ⓘ
W3C markup validation tools → shortName → W3C markup validation tools self-linksurface differs ⓘ
this entity surface form: W3C validators
W3C markup validation tools → relatedTool → W3C markup validation tools self-linksurface differs ⓘ
this entity surface form: W3C Markup Validation Service
W3C markup validation tools → relatedTool → W3C markup validation tools self-linksurface differs ⓘ
this entity surface form: W3C Link Checker
W3C Unicorn → relatedTo → W3C markup validation tools ⓘ
this entity surface form: W3C Markup Validation Service
W3C Unicorn → relatedTo → W3C markup validation tools ⓘ
this entity surface form: W3C Link Checker