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Is CERT Polska down right now?

cert.pl

Checking cert.pl…

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 per hour, last 24 hours

2026-10-10 03:00 UTC: 137 ms2026-10-10 04:00 UTC: 118 ms2026-10-10 05:00 UTC: 96 ms2026-10-10 06:00 UTC: 101 ms2026-10-10 07:00 UTC: 151 ms2026-10-10 08:00 UTC: 143 ms2026-10-10 09:00 UTC: 107 ms2026-10-10 10:00 UTC: 141 ms
Green: response time, full height at 210 ms or more. Red: down. Amber: not confirmed.

Response time by location, last 24 hours

LocationAverage responseReached
Berlin 1, Germany83 ms3 of 3 checks
Falkenstein, Germany157 ms2 of 2 checks
Berlin 2, Germany113 ms3 of 3 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 CERT Polska could not be reached from at least two locations in two checks in a row.

Recent checks

TimeStatusLocationsResponse
2026-10-10 10:07 UTCUp1 of 1141 ms
2026-10-10 09:03 UTCUp1 of 1115 ms
2026-10-10 08:20 UTCUp1 of 1183 ms
2026-10-10 07:16 UTCUp1 of 190 ms
2026-10-10 06:13 UTCUp1 of 184 ms
2026-10-10 05:10 UTCUp1 of 176 ms
2026-10-10 04:07 UTCUp1 of 1130 ms
2026-10-10 03:27 UTCUp1 of 184 ms

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About CERT Polska

CERT Polska

Visit cert.plTitle 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 cert.pl.
  • 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.
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Status of cert.pl