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HTML/CSS/Link Validators
W3C HTML Validator
An excellent free HTML validator from the folks at the World Wide Web Consortium.
WDG HTML Validator
HTML validator brought to you by the Web Design Group. Offers links to pages that help correct your coding errors.
W3C CSS Validator
Cascading Style Sheet validator from the World Wide Web Consortium.
WDG CSS Validator
CSS validator brought to you by the Web Design Group.
W3C Link Checker
A free link checker from the folks at the World Wide Web Consortium.
Juicy Studio Link Analyser
Another Free link analyzer.
Web XACT
WebXACT is a free online service that lets you test single pages of web content for quality, accessibility, and privacy issues.
ColorBlind Web Page Filter
Emulates different types of colorblindness.
