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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May 7, 2026
April 2026 JSON Snapshot is missing data for records created or updated on 4/29 and 4/30
Resolved - The corrected April 2026 JSON snapshot has been released.
May 7, 12:34 UTC
Update - The corrected JSON snapshot is in process. It will be completed and available in the next 2-3 days.
May 5, 12:38 UTC
Identified - Due to problems with API indexing that occurred between 4/29 and 5/3, the current JSON snapshot for April 2026 is missing 1-2 days of data. We've resolved the indexing issue and are currently re-pushing the missing records into the API. Once that's completed, over the next few days, we'll build and release a new snapshot for April.
May 4, 13:45 UTC
May 6, 2026

No incidents reported.

May 5, 2026
05 May - weekly maintenance, release version 0.274.0
Completed - The scheduled maintenance has been completed.
May 5, 15:15 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 5, 14:00 UTC
Scheduled - We will be undergoing scheduled maintenance - release version 0.274.0 - on 5 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 4, 14:50 UTC
REST API Indexing Stalled since April 29th. Impacts on downstream services.
Resolved - This issue has been resolved. Missed records have been indexed, and indexing of newly created and updated records has resumed.
May 5, 12:39 UTC
Monitoring - Records are being indexed in the REST API as expected again. This includes the backlog of records that were affected by this incident.
May 4, 09:41 UTC
Update - We've resolved the issue. Records are being indexed in the REST API as expected again. This includes the backlog of records that were affected by this incident.
May 4, 08:03 UTC
Update - We are continuing to investigate this issue.
May 3, 23:24 UTC
Investigating - No newly created records have been index in REST API since 4/29. Our technical team is investigating.

Impacts on downstream services such as Crossmark, Participation Reports, Metadata Search, and Co-Access/Multiple Resolution interim pages.
May 2, 16:37 UTC
May 4, 2026
May 3, 2026
Submission processing delayed on Sunday, 3 May
Resolved - Submission processing within our admin tool - doi.crossref.org - stalled and was therefore delayed between 10:56 and 20:57 UTC Sunday, 3 May. This issue has been fixed and submissions are again being processed. No submissions were lost during the processing delay; we stored all of those submissions in our system and began processing them at 20:57 UTC. There are no delays currently. -IF
May 3, 11:00 UTC
May 2, 2026
May 1, 2026

No incidents reported.

Apr 30, 2026

No incidents reported.

Apr 29, 2026

No incidents reported.

Apr 28, 2026
28 April - weekly maintenance, release version 0.274.0
Completed - Today's scheduled maintenance has been cancelled.
Apr 28, 13:57 UTC
Scheduled - We will be undergoing scheduled maintenance - release version 0.274.0 - on 28 April 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.
Apr 27, 15:15 UTC
Apr 27, 2026

No incidents reported.

Apr 26, 2026

No incidents reported.

Apr 25, 2026

No incidents reported.

Apr 24, 2026

No incidents reported.

Apr 23, 2026

No incidents reported.

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