All Systems Operational
APIs Operational
Public REST API   ? Operational
Polite REST API   ? Operational
Plus REST API   ? Operational
OAI-PMH   ? Operational
Plus OAI-PMH   ? Operational
OpenURL   ? Operational
Crossmark dialog server   ? Operational
Content negotiation   ? Operational
XML API   ? Operational
Sites Operational
Crossref website   ? Operational
Crossref support   ? Operational
Metadata search   ? Operational
Content Registration Operational
Deposit system   ? Operational
Test deposit system   ? Operational
External dependencies Operational
AWS cloudFront   ? Operational
Handle servers   ? Operational
Meta Operational
deliberately-unreliable server   ? Operational
Beta Operational
Participation Reports   ? Operational
Event Data Query API   ? Operational
Metadata Manager   ? Operational
Operational
Degraded Performance
Partial Outage
Major Outage
Maintenance
Public REST API Response Time
Fetching
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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Content Negotiation Response Time
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Content Negotiation Uptime
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Event Data Query API Response Time
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Event Data Query API Uptime
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Past Incidents
Dec 19, 2018

No incidents reported today.

Dec 18, 2018
Completed - The scheduled maintenance has been completed.
Dec 18, 16:15 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Dec 18, 15:15 UTC
Scheduled - We will be undergoing scheduled maintenance during this time. Our members may experience delays in deposit system admin (doi.crossref.org) and Metadata Manager (crossref.org/metadatamanager) processing. Deposits submitted during this time will be stored and processed after the maintenance is completed.
Dec 17, 18:11 UTC
Dec 17, 2018

No incidents reported.

Dec 16, 2018

No incidents reported.

Dec 15, 2018

No incidents reported.

Dec 14, 2018

No incidents reported.

Dec 13, 2018

No incidents reported.

Dec 12, 2018

No incidents reported.

Dec 11, 2018
Completed - The scheduled maintenance has been completed.
Dec 11, 15:18 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Dec 11, 15:00 UTC
Scheduled - We will be undergoing scheduled maintenance during this time. Our members may experience delays in deposit system admin (doi.crossref.org) and Metadata Manager (crossref.org/metadatamanager) processing. Deposits submitted during this time will be stored and processed after the maintenance is completed.
Dec 10, 16:02 UTC
Completed - The scheduled maintenance has been completed.
Dec 11, 14:20 UTC
Update - We will be undergoing scheduled maintenance during this time.
Dec 10, 15:15 UTC
Scheduled - ORCID is currently conducting maintenance that may impact some of our users. Users of search.crossref.org who try to perform ORCID updates may experience degraded performance until 22:00 UTC today. According to ORCID, "All ORCID websites, including the Registry (Public and Member APIs and the user interface), orcid.org and members.orcid.org, will be unavailable from 2pm UTC on December 15 for up to eight hours for a scheduled hardware upgrade. We apologize for any inconvenience." For updates: https://members.orcid.org/api/resources/orgids-in-orcid
Dec 10, 15:15 UTC
Dec 10, 2018
Resolved - We discovered an error with a small number of DOIs that should not have been registered, but were erroneously entered into our database. We have identified the problem and will release a patch tomorrow during our weekly release.
Dec 10, 19:22 UTC
Investigating - We are currently investigating this issue. Submissions are being accepted at this time, but processing has been suspended.
Dec 10, 17:25 UTC
Completed - The scheduled maintenance has been completed.
Dec 10, 16:00 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Dec 10, 15:00 UTC
Scheduled - We will be applying a security patch to the Crossref Metadata Search between 15:00 and 16:00 on Monday, 10 December. Users may experience degraded performance from Crossref Metadata Search during the hour.
Dec 7, 14:24 UTC
Dec 9, 2018

No incidents reported.

Dec 8, 2018

No incidents reported.

Dec 7, 2018

No incidents reported.

Dec 6, 2018

No incidents reported.

Dec 5, 2018
Resolved - The performance of the Public REST API query (HTTP) was degraded for seven minutes starting at 04:13 UTC 5 December 2017.
Dec 5, 04:13 UTC