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
Content Registration Operational
Admin tool ? Operational
Test admin tool ? Operational
Metadata files Operational
90 days ago
100.0 % uptime
Today
Open Funder Registry ? Operational
90 days ago
100.0 % uptime
Today
Retraction Watch ? Operational
90 days ago
100.0 % uptime
Today
Annual public data files ? Operational
90 days ago
100.0 % uptime
Today
Sites Operational
Crossref website ? Operational
Crossref support ? Operational
Metadata search ? Operational
Participation reports ? Operational
External dependencies Operational
Handle servers ? Operational
Similarity Check via iThenticate from Turnitin - status found at https://turnitin.statuspage.io/ ? Operational
AWS cloudfront Operational
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.

Scheduled Maintenance
Upcoming downtime to complete database migration Sep 16, 2024 21:00 - Sep 17, 2024 21:00 UTC
We will be undergoing scheduled maintenance from Monday, 16 September 21:00 UTC to Tuesday, 17 September 21:00 UTC. The migration will require complete downtime, during which most Crossref services will be unavailable. Attempts to access these services, including making a metadata deposit, will receive a 500 error message, and you will need to retry when services are back online. We will not store or queue attempted metadata deposits or updates made during the downtime. This downtime will not affect the resolution of Crossref DOI links, which will continue to work, nor the REST API for retrieving metadata. We apologize for any disruption as we complete the migratration to a new infrastructure and open-source database. Thank you for your support!
Posted on Aug 31, 2024 - 12:04 UTC
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
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Past Incidents
Sep 8, 2024

No incidents reported today.

Sep 7, 2024

No incidents reported.

Sep 6, 2024

No incidents reported.

Sep 5, 2024
5 September - weekly maintenance release
Completed - The scheduled maintenance has been completed.
Sep 5, 15:21 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 5, 14:00 UTC
Scheduled - We will be undergoing scheduled maintenance on Thursday, 5 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 4, 14:48 UTC
Sep 4, 2024

No incidents reported.

Sep 3, 2024

No incidents reported.

Sep 2, 2024

No incidents reported.

Sep 1, 2024

No incidents reported.

Aug 31, 2024

No incidents reported.

Aug 30, 2024

No incidents reported.

Aug 29, 2024
29 August - weekly maintenance, release v0.202.0
Completed - The scheduled maintenance has been completed.
Aug 29, 15:14 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 29, 14:00 UTC
Scheduled - We will be undergoing scheduled maintenance on Thursday, 29 August 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.
Aug 26, 15:26 UTC
Aug 28, 2024

No incidents reported.

Aug 27, 2024

No incidents reported.

Aug 26, 2024

No incidents reported.

Aug 25, 2024

No incidents reported.

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