All Systems Operational

Uptime over the past 90 days. View historical uptime.
APIs Operational
Public REST API Operational
Polite REST API Operational
OAI-PMH Operational
XML API Operational
Event Data Query API Operational
OpenURL Operational
Crossmark dialog server Operational
Public content negotiation Operational
Polite content negotiation Operational
Metadata Plus Operational
Plus REST API Operational
Plus OAI-PMH Operational
XML Snapshots Operational
JSON Snapshots Operational
Plus content negotiation Operational
Key Manager Operational
Content Registration Operational
Admin tool Operational
Test admin tool Operational
Web deposit form Operational
New Metadata Manager Operational
Metadata files Operational
Open Funder Registry Operational
Retraction Watch Operational
Annual public data files Operational
Sites Operational
Crossref website Operational
Crossref support Operational
Metadata search Operational
Participation reports Operational
Integrations and external dependencies Operational
90 days ago
100.0 % uptime
Today
Handle servers Operational
Monitoring of iThenticate can be seen at https://turnitin.statuspage.io. Operational
AWS cloudfront Operational
ORCID Auto-update Operational
90 days ago
100.0 % uptime
Today
Meta Operational
deliberately-unreliable server Operational
Demo Auth Operational
Operational
Degraded Performance
Partial Outage
Major Outage
Maintenance
Major outage
Partial outage
No downtime recorded on this day.
No data exists for this day.
had a major outage.
had a partial outage.

No incidents or maintenance related to this downtime.

System Metrics Month Week Day
Public REST API Response Time
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Public REST API Uptime
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Polite REST API Response Time
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Polite REST API Uptime
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Plus REST API Response Time
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Plus REST API Uptime
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Plus OAI-PMH Response Time
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Plus OAI-PMH Uptime
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OpenURL Response Time
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OpenURL Uptime
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Public Content Negotiation Response Time
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Public Content Negotiation Uptime
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Polite Content Negotiation Response Time
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Polite Content Negotiation Uptime
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Plus Content Negotiation Response Time
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Plus Content Negotiation Uptime
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Crossmark Response Time
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Crossmark Uptime
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Event Data Query API Response Time
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Event Data Query API Uptime
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Crossref Metadata Search Response Time
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Mar 17, 2026
Crossref DOIs not resolving/ DOI registration failing
Resolved - This incident has been resolved. All affected metadata submissions have now been reprocessed.
Mar 17, 20:03 UTC
Monitoring - We continue to monitor the system to ensure stability and consistent processing of registrations.
Mar 17, 10:38 UTC
Identified - The DOI Foundation identified the issue as a surge in traffic affecting the backend infrastructure of doi.org. This has been resolved. Crossref registration servers have been restarted, and metadata registrations are now processing successfully.
Mar 17, 10:35 UTC
Update - UPDATE: Crossref DOIs have not been resolving as expected since around 06:56 UTC. Any attempt to resolve them returns the error message: “DOI Cannot Connect to Server.” Some DOI registrations are impacted too. We are closely working with the DOI Foundation on a fix.
Mar 17, 09:45 UTC
Investigating - Crossref DOIs have not been resolving as expected since around 06:56 UTC. Any attempt to resolve them returns the error message: “DOI Cannot Connect to Server.” We are currently investigating the issue.
Mar 17, 07:56 UTC
17 March - weekly maintenance - release v0.269.0
Completed - The scheduled maintenance has been completed.
Mar 17, 17:00 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 17, 15:00 UTC
Scheduled - We will be undergoing scheduled maintenance - release version 0.269.0 - on 17th March from 1500 to 1700 UTC. Our members may experience delays in deposit system admin tool (doi.crossref.org) processing. Deposits submitted during this time will be stored and processed after the maintenance has been completed.
Mar 16, 17:45 UTC
Mar 16, 2026

No incidents reported.

Mar 15, 2026

No incidents reported.

Mar 14, 2026

No incidents reported.

Mar 13, 2026

No incidents reported.

Mar 12, 2026

No incidents reported.

Mar 11, 2026

No incidents reported.

Mar 10, 2026
10 March - weekly maintenance - release v0.268.0
Completed - The scheduled maintenance has been completed.
Mar 10, 17:00 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 10, 15:00 UTC
Scheduled - We will be undergoing scheduled maintenance - release version 0.268.0 - on date+month from 1500 to 1700 UTC. Our members may experience delays in deposit system admin tool (doi.crossref.org) processing. Deposits submitted during this time will be stored and processed after the maintenance has been completed.
Mar 9, 15:56 UTC
Mar 9, 2026

No incidents reported.

Mar 8, 2026

No incidents reported.

Mar 7, 2026

No incidents reported.

Mar 6, 2026

No incidents reported.

Mar 5, 2026

No incidents reported.

Mar 4, 2026

No incidents reported.

Mar 3, 2026
3 March - weekly maintenance - release v0.267.0
Completed - The scheduled maintenance has been completed.
Mar 3, 17:00 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 3, 15:00 UTC
Scheduled - We will be undergoing scheduled maintenance - release version 0.267.0 - on Tuesday, 3 March from 1500 to 1700 UTC. Our members may experience delays in deposit system admin tool (doi.crossref.org) processing. Deposits submitted during this time will be stored and processed after the maintenance has been completed.
Mar 2, 18:41 UTC
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