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Web Check vs Webbkoll: catalog facts
Web Check	Webbkoll
Free Free and open source.	Free Free to use, run by a non-profit foundation.
Web, Self-hosted	Web
Many checks combined in one report Can be self-hosted with Docker	Covers cookies, third parties, HTTPS and security headers in one report Checks HTTP to HTTPS redirects
Running it yourself takes some setup Only looks at publicly available information	Some sites fail to scan correctly Simulates a single default browser visit
Self-hosted	Web application
Open source	Closed source
License not stated	License not stated
No account needed	No account needed
Not stated if it works offline	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.