Is Proton Calendar down right now?
calendar.proton.me
Checking calendar.proton.me…
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 | 152 ms | 8 of 8 checks |
| Falkenstein, Germany | 95 ms | 8 of 8 checks |
| Berlin 2, Germany | 151 ms | 8 of 8 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 Proton Calendar could not be reached from at least two locations in two checks in a row.
Recent checks
| Time | Status | Locations | Response |
|---|---|---|---|
| 2026-10-09 12:53 UTC | Up | 3 of 3 | 89 ms |
| 2026-10-09 12:37 UTC | Up | 3 of 3 | 162 ms |
| 2026-10-09 12:22 UTC | Up | 3 of 3 | 158 ms |
| 2026-10-09 12:06 UTC | Up | 3 of 3 | 88 ms |
| 2026-10-09 11:51 UTC | Up | 3 of 3 | 187 ms |
| 2026-10-09 11:35 UTC | Up | 3 of 3 | 193 ms |
| 2026-10-09 11:19 UTC | Up | 3 of 3 | 52 ms |
| 2026-10-09 11:04 UTC | Up | 3 of 3 | 88 ms |
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About Proton Calendar
Proton Calendar
Proton Calendar helps you stay on top of your schedule while protecting your data. Apps available for Android, iOS, and the web.
Visit calendar.proton.meTitle 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 calendar.proton.me.
- 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 Proton Calendar on your own page or in a README. The badge updates by itself.