Quickstart

You can run a useful check without an account. Here's the fastest path from zero to a per-region result.

Run a check in the browser

Go to the RegionCheck homepage, enter a URL, pick the regions you want to check from, and run it. There's no signup required — anonymous checks are limited by your IP address so the service stays usable for everyone.

Read the result

Each region you checked returns its own result: DNS resolution time, TCP connect time, TLS handshake time, and time to first byte (TTFB), plus the HTTP status code. That lets you see at a glance whether a slowdown is regional or global, and which phase of the request is slow.

For a full breakdown of every field in a result, see Understanding results.

Run it from the command line

You can run the same check without opening a browser by calling the ad-hoc check endpoint. It needs no authentication and is rate limited by IP, the same as an anonymous browser check:

curl -s -X POST https://regioncheck.io/api/check \
  -H "Content-Type: application/json" \
  -d '{"url":"https://example.com","regions":["us-east-1","eu-west-1"]}'

Only ports 80, 443, 8080, and 8443 are allowed, and private or internal targets are blocked for every plan. See Security & blocked targets for the full list of restrictions.

Next steps

Create an account to save checks and get an API key — see API reference.
Turn a check into recurring monitoring with alerts — see Saved & scheduled checks.