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
99.33 % 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
99.33 % uptime
Today
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.

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 21, 2025

No incidents reported today.

May 20, 2025
20 May - weekly maintenance - release v0.237.0
Completed - The scheduled maintenance has been completed.
May 20, 14:50 UTC
Verifying - Verification is currently underway for the maintenance items.
May 20, 14:48 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 20, 14:00 UTC
Scheduled - We will be undergoing scheduled maintenance - release version 0.237.0 - on 20 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 19, 14:59 UTC
May 19, 2025

No incidents reported.

May 18, 2025

No incidents reported.

May 17, 2025
7 May - planned maintenance at our data centre
Completed - The scheduled maintenance has been completed.
May 17, 15:00 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 17, 14:00 UTC
Scheduled - We will be undergoing planned network maintenance at our data centre Saturday, 17 May, from 1400 to 1500 UTC. There may be brief periods of interruptions to our services during this time. -IF
May 14, 17:48 UTC
May 16, 2025

No incidents reported.

May 15, 2025

No incidents reported.

May 14, 2025

No incidents reported.

May 13, 2025
13 May - weekly maintenance - release v0.236.0
Completed - The scheduled maintenance has been completed.
May 13, 16:00 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 13, 14:00 UTC
Scheduled - We will be undergoing scheduled maintenance - release version 0.236.0 - on 13 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 12, 14:53 UTC
May 12, 2025

No incidents reported.

May 11, 2025

No incidents reported.

May 10, 2025

No incidents reported.

May 9, 2025

No incidents reported.

May 8, 2025

No incidents reported.

May 7, 2025
Many Crossref services down temporarily due to data centre maintenance
Resolved - This incident has been resolved.
May 7, 15:25 UTC
Monitoring - A fix has been implemented and we are monitoring the results.
May 7, 15:11 UTC
Investigating - We are currently investigating this issue.
May 7, 15:05 UTC
7 May - planned maintenance at our data centre
Completed - The scheduled maintenance has been completed.
May 7, 15:00 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 7, 14:00 UTC
Scheduled - We will be undergoing planned maintenance at our data centre tomorrow, 7 May. We do not anticipate disruptions to any of our services during this maintenance window. -IF
May 6, 20:47 UTC
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