Crossref Status

All Systems Operational

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

Content negotiation Operational

Metadata Plus Operational

Plus REST API Operational

Plus OAI-PMH Operational

XML Snapshots Operational

JSON Snapshots Operational

Sites Operational

Crossref website Operational

Crossref support Operational

Metadata search Operational

Participation reports Operational

Content Registration Operational

Admin tool Operational

Test admin tool 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

System Metrics Month Week Day

Public REST API Response Time

Fetching

Public REST API Uptime

Fetching

Polite REST API Response Time

Fetching

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

Fetching

OpenURL Uptime

Fetching

Content Negotiation Response Time

Fetching

Content Negotiation Uptime

Fetching

Crossmark Response Time

Fetching

Crossmark Uptime

Fetching

Event Data Query API Response Time

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Event Data Query API Uptime

Fetching

Crossref Metadata Search

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Past Incidents

May 21, 2022

No incidents reported today.

May 20, 2022

No incidents reported.

May 19, 2022

No incidents reported.

May 18, 2022

No incidents reported.

May 17, 2022

17 May - weekly maintenance, release v0.121.0

Completed - The scheduled maintenance has been completed.
May 17, 16:00 UTC

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 17, 14:02 UTC

Scheduled - We will be undergoing scheduled maintenance - release v0.121.0 - on Tuesday, 17 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 16, 15:36 UTC

May 16, 2022

No incidents reported.

May 15, 2022

No incidents reported.

May 14, 2022

No incidents reported.

May 13, 2022

No incidents reported.

May 12, 2022

No incidents reported.

May 11, 2022

No incidents reported.

May 10, 2022

No incidents reported.

May 9, 2022

No incidents reported.

May 8, 2022

No incidents reported.

May 7, 2022

Degraded performance with our main website - crossref.org

Resolved - This incident has been resolved.
May 7, 03:11 UTC

Investigating - Hetzner, our host for crossref.org, is currently experiencing a distributed denial-of-service (DDoS) attack that is causing performance problems with our main web site. We’ll be following Hetzner’s status page for the latest: https://status.hetzner.com/incident/ea9ed47d-ecfa-49bd-a961-fdfbdaf026e0. Note: this is note impacting deposits, our API, or any other Crossref services.
May 6, 22:17 UTC