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Blacklight vs Cookieserve: catalog facts
Blacklight	Cookieserve
Free Free to use, run by a donation-supported newsroom.	Free The cookie checker is free with no email required.
Web	Web
Detects fingerprinting, session recording and keystroke capture Names data flows to major platforms	No email or sign-up needed for a scan Instant report on cookies and their purpose
Scans a single page per run Cached results may be shown unless a fresh scan is forced	Promotes a separate cookie consent product Checks cookies rather than every kind of tracker
Web application	Web application
Closed source	Closed source
License not stated	License not stated
No account 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.