HTML & CSS W3C Validator Pro users history on Chrome Web Store

Every stored observation, newest first. Archived values come from Internet Archive snapshots and link to the capture they were read from. Missing dates mean no observation exists for that day; no values are interpolated.

Users

HTML & CSS W3C Validator Pro users observations
Date (UTC)	Users	Change vs. previous	Source	Precision
Oct 22, 2026	197	—	Public listing page	Rounded by source

Rank

HTML & CSS W3C Validator Pro rank observations
Date (UTC)	Rank	Source
Oct 22, 2026	#2542	Live collection

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