Is Serlo down right now?
serlo.org
Checking serlo.org…
Asking our locations to reach the site. This takes a few seconds.
- Uptime, 24 hours
- 100 %
- Uptime, 7 days
- 100 %
- Uptime, 30 days
- 100 %
Based on 1 day of checks so far. Checks that failed because of how we test, not because of the site, are left out.
Response time, last 24 hours
Response time by location, last 24 hours
| Location | Average response | Reached |
|---|---|---|
| Berlin 1, Germany | 118 ms | 7 of 7 checks |
| Falkenstein, Germany | 170 ms | 7 of 7 checks |
| Berlin 2, Germany | 122 ms | 7 of 7 checks |
Each check runs from all locations at once. A location far from the site’s servers answers later; that says nothing about the site being slow.
Outage history
No confirmed outage on record. An outage is listed once Serlo could not be reached from at least two locations in two checks in a row.
Recent checks
| Time | Status | Locations | Response |
|---|---|---|---|
| 2026-10-09 12:38 UTC | Up | 3 of 3 | 142 ms |
| 2026-10-09 12:23 UTC | Up | 3 of 3 | 112 ms |
| 2026-10-09 12:07 UTC | Up | 3 of 3 | 157 ms |
| 2026-10-09 11:52 UTC | Up | 3 of 3 | 150 ms |
| 2026-10-09 11:36 UTC | Up | 3 of 3 | 164 ms |
| 2026-10-09 11:20 UTC | Up | 3 of 3 | 125 ms |
| 2026-10-09 11:04 UTC | Up | 3 of 3 | 105 ms |
Comments
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About Serlo
Serlo – Die freie Lernplattform
Die freie Lernplattform
Visit serlo.orgTitle and description as published by the site.
We can reach it, but you cannot?
- Reload the page without the cache: Ctrl + F5 on Windows, Cmd + Shift + R on a Mac.
- Open the site in a private window. If it works there, clear the cookies and cache for serlo.org.
- Try another network, such as mobile data. If that works, the problem is with your provider or router.
- Switch to a public DNS resolver such as 1.1.1.1 or 8.8.8.8, then flush your DNS cache.
- Turn off VPNs, proxies and ad blockers for a moment. Some sites refuse those connections.
Embed a status badge
Show the current status of Serlo on your own page or in a README. The badge updates by itself.