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Is It Down Right Now vs Check-Host: catalog facts
Is It Down Right Now	Check-Host
Free Free to use in the browser.	Free The checks are used in the browser at no cost.
Web	Web
Live check for any domain you enter Response time graphs per site	Checks run from many locations around the world at once Covers ping, HTTP, TCP, UDP and DNS in one place
Checks basic availability only No alerts or ongoing monitoring of your own sites	Web service only, with no self-hosted version Page carries advertising for hosting services
Web application	Web application
Closed source	Closed source
License not stated	License not stated
No 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.