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
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
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
Public REST API Response Time
Fetching
Public REST API Uptime
Fetching
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
Fetching
Plus OAI-PMH Uptime
Fetching
OpenURL Response Time
Fetching
OpenURL Uptime
Fetching
Public Content Negotiation Response Time
Fetching
Public Content Negotiation Uptime
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Polite Content Negotiation Response Time
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Polite Content Negotiation Uptime
Fetching
Plus Content Negotiation Response Time
Fetching
Plus 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
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Crossref Metadata Search
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Past Incidents
Sep 24, 2023

No incidents reported today.

Sep 23, 2023

No incidents reported.

Sep 22, 2023
Completed - The scheduled maintenance has been completed.
Sep 22, 12:01 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 22, 11:00 UTC
Scheduled - We will be releasing an update to Crossref Metadata Search (https://search.crossref.org/) during this time. We hope that users will not have any interruption to their service, but there may be disruption to service during this hour.
Sep 22, 10:45 UTC
Sep 21, 2023
Resolved - This incident has been resolved.
Sep 21, 13:44 UTC
Monitoring - A fix has been implemented and we are monitoring the results.
Sep 21, 13:34 UTC
Investigating - Crossref Metadata Search - search.crossref.org - is currently returning a 503 service unavailable status code error. We're performing maintenance at the moment and are working on a fix to that underlying issue.
Sep 21, 13:12 UTC
Sep 20, 2023

No incidents reported.

Sep 19, 2023
Completed - The scheduled maintenance has been completed.
Sep 19, 16:00 UTC
Update - As a result of today's scheduled maintenance, the test admin tool - test.crossref.org, the admin tool - doi.crossref.org, and the XML API are all returning 503 service unavailable status code errors. This is related to the maintenance that is still in progress.
Sep 19, 14:46 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 19, 14:00 UTC
Scheduled - We will be undergoing scheduled maintenance - release v0.176.0 - on Tuesday, 19 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 18, 15:08 UTC
Sep 18, 2023

No incidents reported.

Sep 17, 2023

No incidents reported.

Sep 16, 2023

No incidents reported.

Sep 15, 2023

No incidents reported.

Sep 14, 2023

No incidents reported.

Sep 13, 2023

No incidents reported.

Sep 12, 2023
Resolved - This incident has been resolved.
Sep 12, 16:17 UTC
Monitoring - A fix has been implemented and we are monitoring the results.
Sep 11, 20:47 UTC
Update - We are continuing to work on a fix for this issue.
Sep 11, 15:29 UTC
Update - We have identified the cause of these errors and are currently planning for a special release to fix those errors later today.
Sep 11, 14:45 UTC
Identified - The issue has been identified and a fix is being implemented.
Sep 11, 13:28 UTC
Investigating - There have been performance-related issues today with Metadata Manager and Participation Reports. We're still investigating the underlying cause.
Sep 11, 01:38 UTC
Sep 11, 2023
Completed - The scheduled maintenance has been completed.
Sep 11, 20:00 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 11, 18:00 UTC
Scheduled - We will be undergoing unplanned, special maintenance - release v0.175.0 - on Monday, 11 September from 1800 to 2000 UTC. In this release, we'll be addressing the bug related to the recent performance issues we've seen with Participation Reports, Metadata Manager, and OAI-PMH.

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 11, 15:00 UTC
Sep 10, 2023

No incidents reported.