Crossref Status

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

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

Beta Operational

Metadata Manager Operational

Operational

Degraded Performance

Partial Outage

Major Outage

Maintenance

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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Past Incidents

Jan 24, 2025

No incidents reported today.

Jan 23, 2025

No incidents reported.

Jan 22, 2025

No incidents reported.

Jan 21, 2025

Error when granting Crossref permission to update ORCID records

Resolved - This incident has been resolved. Requests made to ORCID Auto-update during the period of degraded performance have been handled.
Jan 21, 20:13 UTC

Update - We are continuing to monitor and look into what requests may have been missed and whether they could be resent.
Jan 21, 09:40 UTC

Monitoring - We believe we have fixed the problem with the requests being sent and are now investigating how we can resend any requests which failed to send whilst this service was down.
Jan 20, 16:27 UTC

Investigating - Over the weekend we saw some Sentry errors regarding our ORCID Auto-update push and have had a couple of users report an error when trying to grant permission for Crossref to update their ORCID record. We are investigating (and working with the ORCID team) to determine the root cause and will update here when we have more information.
Jan 20, 14:10 UTC

21 January - weekly maintenance, release v0.222.0

Completed - The scheduled maintenance has been completed.
Jan 21, 16:14 UTC

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jan 21, 15:00 UTC

Scheduled - We will be undergoing scheduled maintenance - release v0.222.0 - on Tuesday, 21 January 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.
Jan 17, 18:01 UTC

Jan 20, 2025

Jan 19, 2025

No incidents reported.

Jan 18, 2025

No incidents reported.

Jan 17, 2025

Investigating an outage

Resolved - This incident has been resolved.
Jan 17, 03:44 UTC

Identified - The issue has been identified and a fix is being implemented.
Jan 17, 03:42 UTC

Investigating - Our technical team is investigating an incident with our admin tool (doi.crossref.org). The service is currently down and returning a 503 (service unavailable) status code error. -IF
Jan 17, 03:39 UTC

Jan 16, 2025

16 January - unplanned maintenance, release v0.221.0

Completed - The scheduled maintenance has been completed.
Jan 16, 15:48 UTC

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jan 16, 15:00 UTC

Scheduled - We will be undergoing unplanned maintenance - release v0.221.0 - on Thursday, 16 January from 1500 to 1700 UTC. This unplanned maintenance will fix a bug with the unixsd route that was introduced during our release on Tuesday, 14 January.

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. -IF
Jan 16, 13:36 UTC

Jan 15, 2025

No incidents reported.

Jan 14, 2025

14 January - weekly maintenance, release v0.220.0

Completed - The scheduled maintenance has been completed.
Jan 14, 16:02 UTC

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jan 14, 15:00 UTC

Update - We will be undergoing scheduled maintenance during this time.
Jan 13, 16:30 UTC

Scheduled - We will be undergoing scheduled maintenance - release v0.220.0 - on Tuesday, 14 January 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.
Jan 13, 16:29 UTC

14 January - scheduled maintenance, data center

Completed - The scheduled maintenance has been completed.
Jan 14, 11:00 UTC

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jan 14, 06:00 UTC

Scheduled - Scheduled maintenance will be conducted on our data center network circuit on Tuesday, 14 January from 0600 to 1100 UTC. This maintenance could cause intermittent service interruptions during this window of time.
Jan 10, 22:10 UTC

Jan 13, 2025

Degraded performance of some of our reports and email notifications

Resolved - This incident has been resolved.
Jan 13, 18:18 UTC

Update - The csv download within the browsable title list - https://0-www-crossref-org.library.alliant.edu/titleList/ - has been restored. We have ongoing, minor issues with our Schematron report that we're still working on. - IF
Dec 5, 16:05 UTC

Update - We are continuing to work on a fix for this issue.
Dec 2, 17:05 UTC

Update - Search within the browsable title list - https://0-www-crossref-org.library.alliant.edu/titleList/ - has been restored. We do, however, have minor issues with: depositor reports, the csv download in the browsable title list, DOI crawler report, and our Schematron report. Our technical team continues to work on a fix for these other reports. - IF
Nov 19, 20:24 UTC

Update - We are continuing to work on a fix for this issue.
Nov 19, 14:04 UTC

Update - We are continuing to work on a fix for this issue.
Nov 8, 15:25 UTC

Update - Search within the browsable title list - https://0-www-crossref-org.library.alliant.edu/titleList/ - is currently broken. We also still have minor issues with: depositor reports, the csv download in the browsable title list, DOI crawler report, and our Schematron report. Our technical team is investigating. - IF
Nov 1, 14:13 UTC

Update - The PubMed IDs search functionality in the Simple Text Query form - https://0-apps-crossref-org.library.alliant.edu/SimpleTextQuery/ - has been fixed. We still have some minor problems with: depositor reports, the csv download in the browsable title list, DOI crawler report, and our Schematron report. Our technical team continues to work on fixes for these other reports. - IF
Oct 30, 16:39 UTC

Update - We are continuing to work on a fix for this issue.
Oct 21, 15:14 UTC

Update - The browsable title list - https://0-www-crossref-org.library.alliant.edu/titleList/ - is now available. We're still working to fully restore a few other reports/tools: refreshing the data within the conflict reports and the PubMed IDs search functionality in the Simple Text Query form. -IF
Oct 1, 14:08 UTC

Update - Our technical team has fixed the issues with submission log emails. All members should now be receiving submission log emails for their submissions. In addition, our team has fixed depositor reports (for journals, books, and series).

We're still working to fully restore a few other reports/tools: browsable title list, conflict reports, and the PubMed IDs search functionality in the Simple Text Query form. -IF
Sep 23, 18:27 UTC

Update - We are continuing to work to fully restore all of our reports (e.g., browsable title list, conflict reports, depositor reports). In addition, we have identified errors with submission logs being sent as a result of your deposits. These errors are also related to our database migration earlier this week.

We are still processing your deposits. Submission processing is not broken; it is only the missing emails that are an issue. We are working to fix the bug resulting in missing emailed submission logs. As an alternative, you can always use our admin tool to review your recent submissions. Follow these directions: https://0-www-crossref-org.library.alliant.edu/documentation/register-maintain-records/verify-your-registration/submission-queue-and-log/#00143 -IF
Sep 20, 16:05 UTC

Identified - As a result of our database migration - https://0-status-crossref-org.library.alliant.edu/incidents/v3k2t9f3jdcw - some of our reports (e.g., browsable title list, conflict reports, depositor reports) have not yet been fully restored. Our technical team is working to fully restore those reports now.
Sep 17, 17:55 UTC

Jan 12, 2025

No incidents reported.

Jan 11, 2025

No incidents reported.

Jan 10, 2025

No incidents reported.

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