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RIPE Atlas vs Check-Host: catalog facts
RIPE Atlas	Check-Host
Free Public data is openly available; custom measurements require logging in.	Free The checks are used in the browser at no cost.
Web	Web
Measurements from a large global set of probes Public data through maps, streams and an API	Checks run from many locations around the world at once Covers ping, HTTP, TCP, UDP and DNS in one place
Custom measurements require an account Aimed at network operators rather than casual users	Web service only, with no self-hosted version Page carries advertising for hosting services
Hosted service	Web application
Closed source	Closed source
License not stated	License not stated
Account needed	Not stated if an account is 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.