www.crossref.org was down for 70 mins on Sunday, 13 September; we're monitoring for the coming weeks
Update - We have deployed a fix for this issue and are monitoring the results. -IF
Sep 15, 2026 - 17:01 UTC
Monitoring - Yesterday, 13 September, we reported an incident with our website: www.crossref.org. It was down from 11:13 to 12:23 UTC. We resolved that incident prematurely. The outage was caused by a know intermittent issue that our technical team is working to resolve, but does not yet have fixed. We're monitoring the issue, and anticipate doing so for the foreseeable future. Thus, we have re-opened a new incident here. We'll provide updates as we have them. -IF
Sep 14, 2026 - 23:19 UTC
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
Handle servers Operational
Monitoring of iThenticate can be seen at https://turnitin.statuspage.io. Operational
AWS cloudfront Operational
ORCID Auto-update Operational
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
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Polite REST API Response Time
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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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Polite Content Negotiation Response Time
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Plus Content Negotiation Response Time
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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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Sep 16, 2026

No incidents reported today.

Sep 15, 2026

15 September - weekly maintenance, release v0.290.0
Completed - The scheduled maintenance has been completed.
Sep 15, 16:00 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 15, 14:00 UTC
Scheduled - We will be undergoing scheduled maintenance - release version 0.290.0 - on Tuesday, 15 September 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.
Sep 14, 12:48 UTC

Sep 14, 2026

www.crossref.org was down for 70 mins
Resolved - This incident has been resolved.
Sep 14, 12:46 UTC
Investigating - Our main website at www.crossref.org was down for 70 minutes earlier, from 11:13 to 12:23 UTC. It's been up since but we'll investigate what happened. Sorry for the inconvenience.
-GH
Sep 13, 14:39 UTC

Sep 13, 2026

Sep 12, 2026

No incidents reported.

Sep 11, 2026

No incidents reported.

Sep 10, 2026

No incidents reported.

Sep 9, 2026

Content registration processing delays today
Resolved - This incident has been resolved.
Sep 9, 20:38 UTC
Monitoring - A fix has been implemented and we are monitoring the results.
Sep 9, 18:47 UTC
Investigating - We had an issue with submission notifications going down around 0:00 UTC today. We re-enabled those submission notifications around 1000 UTC, but that has caused a delay in submission processing and notification delivery. As a result, processing of direct XML submissions either manually uploaded or posted to doi.crossref.org and submissions via our web deposit form - https://apps.crossref.org/webDeposit/ - are delayed. Our system is working through the backlog at the moment. -IF
Sep 9, 16:25 UTC

Sep 8, 2026

8 September - weekly maintenance, release v0.289.0
Completed - The scheduled maintenance has been completed.
Sep 8, 17:00 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 8, 15:00 UTC
Scheduled - We will be undergoing scheduled maintenance - release version 0.289.0 - on Tuesday, 8 September 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.
Sep 8, 14:29 UTC

Sep 7, 2026

Several members reporting errors when attempting to log in to register records (Admin tool, Metadata Manager, web deposit form, OJS)
Resolved - Several members reported errors authenticating and logging in to doi.crossref.org, Metadata Manager, web deposit form, OJS, and third-party tools due to an error in our system. That error began around 2000 UTC today. Jon on our technical team has fixed the issue. Members should now be able to log in to all Crossref services. -IF
Sep 7, 20:00 UTC

Sep 6, 2026

No incidents reported.

Sep 5, 2026

No incidents reported.

Sep 4, 2026

No incidents reported.

Sep 3, 2026

No incidents reported.

Sep 2, 2026

No incidents reported.

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