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
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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Crossref Metadata Search Response Time
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Jun 6, 2026

No incidents reported today.

Jun 5, 2026
Degraded service on REST API
Resolved - This incident has been resolved.
Jun 5, 17:50 UTC
Update - We are continuing to monitor for any further issues.
Jun 1, 16:11 UTC
Monitoring - A fix has been implemented and we are monitoring the results.
May 29, 14:33 UTC
Investigating - We are experiencing delays in updating some metadata fields on the REST API. This includes citation counts, Retraction Watch retractions, aliased DOIs, and metadata in the member, journal, and funder routes. We are currently investigating the cause.
May 29, 12:12 UTC
Jun 4, 2026

No incidents reported.

Jun 3, 2026

No incidents reported.

Jun 2, 2026
2 June - weekly maintenance, release version v0.278.0
Completed - The scheduled maintenance has been completed.
Jun 2, 16:00 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jun 2, 14:00 UTC
Scheduled - We will be undergoing scheduled maintenance - release version 0.278.0 - on 2 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 1, 16:06 UTC
Jun 1, 2026
May 31, 2026

No incidents reported.

May 30, 2026

No incidents reported.

May 29, 2026
May 28, 2026

No incidents reported.

May 27, 2026

No incidents reported.

May 26, 2026

No incidents reported.

May 25, 2026

No incidents reported.

May 24, 2026

No incidents reported.

May 23, 2026

No incidents reported.

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