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Is ISSN | down right now?

issn.org · last confirmed outage 4 h ago

Checking issn.org…

Asking our locations to reach the site. This takes a few seconds.

Uptime, 24 hours
92.3 %
Uptime, 7 days
90.0 %
Uptime, 30 days
90.0 %

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: down2026-10-10 04:00 UTC: 116 ms2026-10-10 05:00 UTC: 123 ms2026-10-10 06:00 UTC: 481 ms2026-10-10 07:00 UTC: 117 ms
Green: response time, full height at 180 ms or more. Red: down. Amber: not confirmed.

Response time by location, last 24 hours

LocationAverage responseReached
Berlin 1, Germany125 ms2 of 3 checks
Falkenstein, Germany116 ms1 of 1 checks
Berlin 2, Germany486 ms3 of 4 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 ISSN | could not be reached from at least two locations in two checks in a row.

Recent checks

TimeStatusLocationsResponse
2026-10-10 07:13 UTCUp2 of 3122 ms
2026-10-10 06:10 UTCUp1 of 11204 ms
2026-10-10 05:06 UTCUp1 of 1128 ms
2026-10-10 04:02 UTCUp1 of 1125 ms
2026-10-10 03:43 UTCDown2 of 3–
2026-10-10 03:23 UTCUp1 of 1124 ms

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About ISSN |

ISSN |

Visit issn.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 issn.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.
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Status of issn.org