📈 Free · private · in-browser

Free uptime monitor with a public status page

Schedule checks, track history, and publish a status page.

Know the moment your site goes down

A one-off check tells you a site is up right now. An uptime monitor tells you the moment it stops answering - and keeps a record you can point to afterwards. Add the URLs that matter, pick how often to check them, and UpNimbus runs those checks from the edge on a schedule, tracks the results, and turns them into a clean public status page you can share.

How it works

  1. Add a monitor - give it a name, the URL, and a check interval.
  2. We check it from the edge and compare the response to the expected status.
  3. State updates automatically - operational when it matches, down when it does not.
  4. Incidents are recorded when a site goes down and closed when it recovers.
  5. Share the status page at /status/<slug> with your team or users.

A status page that builds trust

When something breaks, a public status page is the fastest way to reassure the people who depend on you. Each public monitor gets its own page showing the current state, the last check time and latency, an uptime percentage, and a visual strip of recent checks - green for up, red for down. No login required for viewers, so you can drop the link anywhere.

Start with an instant check

Not sure what a monitor will see? Run the target through theWebsite Status Checker first to confirm the status code, or the HTTP Header Inspector to review what the server returns. Then add it here to watch it continuously.

Frequently asked questions

How often are my monitors checked?

You choose an interval when you create a monitor - every 1, 5, or 15 minutes. A scheduled job runs from the edge, records the result, and updates your status page. The minimum interval is 60 seconds.

What is the public status page?

Every monitor you mark public gets its own shareable status page at /status/<slug>, showing the current state, last check time, latency, uptime percentage, and a strip of recent checks. Share the link with your team or customers.

Do I need an account?

Yes - monitors are tied to your account so they persist and only you can manage them. Creating an account is free. The instant checks (status, DNS, headers) work without signing in.

How many monitors can I run?

Free accounts can run up to 20 monitors. Delete one to make room for another. That is plenty to cover a small app's critical endpoints and a few dependencies.