Outage in Crossref
test.crossref.org is currently being monitored
Resolved MajorIncident Report
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
Components affected
Crossref Test admin toolTrusted by 1,000+ teams
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Latest Updates ( sorted recent to last )
RESOLVED
about 11 hours ago - at 10/05/2026 12:49PM
This incident has been resolved.
MONITORING
1 day ago - at 10/04/2026 01:18PM
We are continuing to monitor for any further issues.
MONITORING
1 day ago - at 10/04/2026 01:18PM
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
INVESTIGATING
1 day ago - at 10/04/2026 11:30AM
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
Latest Crossref outages
Metadata Plus REST API not validating API keys - about 11 hours ago
Test admin tool - test.crossref.org - is down - 9 days ago
www.crossref.org was down for 70 mins on Sunday, 13 September; we're monitoring for the coming weeks - 21 days ago
www.crossref.org was down for 70 mins - 22 days ago
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