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
Record registration form ? 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
99.33 % 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
99.33 % uptime
Today
Meta Operational
deliberately-unreliable server ? Operational
Demo Auth ? Operational
Beta Operational
Metadata Manager ? 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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Jun 10, 2025
10 June - weekly maintenance - release v0.240.0
Completed - The scheduled maintenance has been completed.
Jun 10, 08:50 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jun 10, 08:00 UTC
Scheduled - We will be undergoing scheduled maintenance - release version 0.240.0 - on Tuesday, 10 June from 0800 to 1000 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.
Jun 5, 16:33 UTC
Jun 9, 2025

No incidents reported.

Jun 8, 2025

No incidents reported.

Jun 7, 2025

No incidents reported.

Jun 6, 2025

No incidents reported.

Jun 5, 2025

No incidents reported.

Jun 4, 2025

No incidents reported.

Jun 3, 2025
3 June - weekly maintenance - release v0.239.0
Completed - The scheduled maintenance has been completed.
Jun 3, 16:00 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jun 3, 14:00 UTC
Scheduled - We will be undergoing scheduled maintenance - release version 0.239.0 - on Tuesday, 3 June from 1400 to 1600 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.
Jun 2, 13:12 UTC
Crossref Search is down
Resolved - We have increased capacity, and the service is now restored. Thanks for your patience!
-GH
Jun 3, 12:15 UTC
Investigating - For the last hour, Crossref Search has been showing a 504 timeout status response due to heavy use. We're investigating and looking at adding more capacity to balance the high traffic.
-GH
Jun 3, 10:12 UTC
Jun 2, 2025

No incidents reported.

Jun 1, 2025

No incidents reported.

May 31, 2025

No incidents reported.

May 30, 2025

No incidents reported.

May 29, 2025
Crossref admin tool is currently down
Resolved - The admin tool is available once more. The team are investigating the reasons for the outage.
May 29, 11:11 UTC
Investigating - The Crossref admin tool has been down for the last 10 minutes. Our team is aware and are investigating. More as we know it.
May 29, 10:56 UTC
May 28, 2025
28 May - planned maintenance at our data centre
Completed - The scheduled maintenance has been completed.
May 28, 20:00 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 28, 18:00 UTC
Scheduled - We will be undergoing planned network maintenance at our data centre Wednesday, 28 May, from 1800 to 2000 UTC. There may be brief periods of interruptions to our services during this time. -IF
May 27, 16:07 UTC
May 27, 2025
27 May - weekly maintenance - release v0.238.0
Completed - The scheduled maintenance has been completed.
May 27, 15:41 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 27, 14:00 UTC
Scheduled - We will be undergoing scheduled maintenance - release version 0.238.0 - on Tuesday, 27 May from 1400 to 1600 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.
May 26, 21:19 UTC
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