Compare software

Internet.nl vs Web Check: catalog facts
Internet.nl	Web Check
Free Free to use online.	Free Free and open source.
Web, Self-hosted	Web, Self-hosted
Tests website, email and connection setup in one place Covers IPv6, DNSSEC, TLS, DMARC, DANE and RPKI	Many checks combined in one report Can be self-hosted with Docker
Checks standards compliance rather than site speed or content The score reflects the project's own weighting of standards	Running it yourself takes some setup Only looks at publicly available information
Web application, Self-hosted	Self-hosted
Closed source	Open source
License not stated	License not stated
Not stated if an account is needed	No account needed
Needs internet	Not stated if it works offline
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.