Compare software

Check-Host vs Dotcom-Tools: catalog facts
Check-Host	Dotcom-Tools
Free The checks are used in the browser at no cost.	Freemium The basic online tests are free; an account sign-up is offered for further features.
Web	Web
Checks run from many locations around the world at once Covers ping, HTTP, TCP, UDP and DNS in one place	Tests from nearly two dozen locations around the world Element-level waterfall chart for page speed
Web service only, with no self-hosted version Page carries advertising for hosting services	Closed-source hosted service Some features are tied to an account sign-up
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 October 1, 2026

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