Is O2 down?
Our latest automated check, 5 minutes ago, found O2 up (HTTP 200, 1461 ms). Fresh results are loaded below.
O2 status history
Recent outages
| Started (UTC) | Duration | Reason |
|---|---|---|
| 2026-11-10 14:53 | 37 min | Server responded with HTTP 404 |
| 2026-11-05 14:13 | 38 min | Server responded with HTTP 404 |
Data from our own checks every 30 minutes from a single location, 825 checks stored so far. Not an official statement from O2.
If O2 looks down for you
If your provider is down, you may not be able to open any site, including this one. A problem on your own connection looks like an outage, so test with another network first.
- Test from another networkSwitch to mobile data or ask someone elsewhere. If it works there, the problem is your connection or DNS.
- Clear DNS and disable VPNFlush your DNS cache, or try a different resolver such as 1.1.1.1 or 8.8.8.8, and turn off VPNs and proxies.
- Look at the layersRun the root-cause finder to see whether DNS, the connection, the certificate or the HTTP response fails, or check DNS and SSL.
Read down for everyone or just me for the full method.
Frequently asked questions
Is O2 down right now?
Our latest stored check 5 minutes ago found O2 reachable. The live check on this page runs a fresh test from our servers when you open it.
Why can I not open O2 if the check says it is up?
The problem is probably on your side: your network, DNS cache, VPN, browser, an extension or a regional block. Try mobile data or another network and clear your DNS cache.
What does it mean if O2 is down for everyone?
Our servers could not get a normal response either, so O2 or its hosting is having a problem. Check the official status page or social account and try again in a few minutes.
How does SiteDownCheck decide O2 is down?
We request the home page from our servers. A connection failure, timeout or 5xx error is confirmed with a second check a few seconds later before it counts as down. A 4xx response such as 403 counts as reachable, because many sites refuse automated requests.
What is the uptime of O2?
Over the last 825 checks in the past 30 days, O2 answered 99.76% of the time from our single monitoring location. This is our own measurement, not an official figure from O2.
Show O2 status on your site
Embed a live badge fed by our monitoring data. It links back to this page.
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Results are our own automated checks and not an official statement from O2. We are not affiliated with O2. See the disclaimer and our troubleshooting guide.