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Dr. Link Check vs W3C Link Checker: catalog facts
Dr. Link Check	W3C Link Checker
Freemium A free check is available, with paid plans for larger or repeated checks.	Free Free to use on the W3C website.
Web	Web
Flags links to malware and phishing sites, not only dead ones Checks resources such as images and style sheets	Checks anchors as well as full URLs Recursive crawling with a configurable depth
Requires JavaScript in the browser Larger sites need a paid plan	Plain interface with a text-heavy report Works best when the pages already have valid markup
Web application	Web application
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	No account needed
Needs internet	Needs internet
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.