ToolsWebsite checker
Is your website up right now?
Check any public website or API from our servers: whether it answers, with which status, and how fast. No account needed.
Checker
One request from our servers, the way a visitor’s browser would ask. We do not store or log the address you enter; we keep only daily totals of how many checks ran and what they found.
Enter a website to see whether it is up right now and how fast it answers. No account needed.
Method
What is checked, and how.
Request
One request, like a visitor's
A single GET from our servers, following up to 5 redirects. We read the response status and stop; the page body is not downloaded.
Verdict
Up, slow or down
Up: it answered with a 2xx or 3xx status within a second. Slow: it answered, but took longer than a second. Down: it answered with an error status (4xx or 5xx), or did not answer within 10 seconds.
One place
A single location, a single moment
One check from one place says whether the site works for us now. A site can be up here and down elsewhere, or fail a minute later. Watching it continuously is what catches that.
Safety
Public addresses only
The request goes through the same guard Observer uses for outbound webhooks: private, local and cloud metadata addresses are refused, including after a redirect. Checks are rate-limited per visitor and per site.
Privacy
The address is not kept
The address you enter is used for the check and then discarded. It is not logged or stored. A result is reused for 2 minutes, held in memory under a one-way hash of the address. Observer keeps only daily totals: how many checks ran and how many sites were up, slow or down.