test.crossref.org is currently down

Incident Report for Crossref

Update

We are continuing to monitor for any further issues.
Posted Oct 04, 2026 - 13:18 UTC

Monitoring

The test server ran out of memory and stopped responding; we restarted it, and it's working again. If you had problems depositing or querying in the test system during this time, please try again. We'll monitor.
-GH
Posted Oct 04, 2026 - 13:18 UTC

Investigating

The test admin system has been down since about 09:30 UTC, so members will see a 503 Service Unavailable message when visiting test.crossref.org. We're investigating.
-GH
Posted Oct 04, 2026 - 11:30 UTC
This incident affects: Content Registration (Test admin tool).