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Is it down, or is it just you?

Three independent views in one check: your own connection, Mozilla's scanning network and global DNS. If they disagree, we tell you where the problem is.

Free checks availableNo sign-upNothing stored by NuuMa

How it works

Straight from the source.

Every result comes live from a recognised public source — named under your results, so you can check our work.

  1. 1
    Your connectionYour browser tries to reach the site directly.
  2. 2
    A second opinionMozilla's HTTP Observatory connects from its own network and reports the HTTP status.
  3. 3
    DNS everywhereThree public resolvers confirm the name still points somewhere.

Private by design

No accounts, no cookies, no tracking. NuuMa doesn't store what you check. To run the tests, the address you enter goes directly from your browser to the public services named above. The only thing kept is a small daily counter in your own browser that keeps these tools free for everyone.

Questions, answered plainly

It's down only for me. What now?

Try another network or turn off your VPN, restart your router and clear your browser and DNS cache. If it still fails, your network may be blocking the site.

What does a 5xx error mean?

The server is reachable but failing — usually a crashed application, an overloaded server or a misconfiguration. It's on the site's side, not yours.

Can you keep watch for me?

This check is a live snapshot. Sites hosted with NuuMa run on a platform our own team manages, with real people to help if something goes wrong.

More free tools

Keep checking.

Run a full check-up →

Speed testCore Web Vitals and a performance score, on mobile or desktop.Open tool →DNS checkerEvery record, three resolvers, one view.Open tool →Redirect checkerTrace every hop from http to https and www.Open tool →SSL checkerIssuer, expiry, browser trust and security headers.Open tool →Domain expiryExpiry date, registrar and locks, from the registry.Open tool →Mobile testSpeed, accessibility and SEO on a phone.Open tool →Response timeHow fast your server answers.Open tool →Image analyzerHeavy images and how much you could save.Open tool →Speed comparisonYour site vs. a competitor, side by side.Open tool →

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