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
Sep 18, 2018
Completed - The scheduled maintenance has been completed.
Sep 18, 16:00 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 18, 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.
Sep 17, 20:51 UTC
Sep 17, 2018

No incidents reported.

Sep 16, 2018
Completed - The scheduled maintenance has been completed.
Sep 16, 16:01 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 14, 21:00 UTC
Scheduled - Our deposit system (doi.crossref.org) will undergo scheduled maintenance from 21:00 UTC, Friday, 14 September until 16:00 UTC, Sunday, 16 September. During this time we will accept your submissions, but processing will be delayed until the maintenance is completed.
Sep 10, 18:31 UTC
Sep 15, 2018

No incidents reported.

Sep 13, 2018
Completed - The scheduled maintenance has been completed.
Sep 13, 18:30 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 13, 18:00 UTC
Scheduled - We will be undergoing maintenance today from 18:00 to 18:30 UTC. Users may experience a few minutes of downtime. Our admin deposit system - doi.crossref.org - will not be processing submissions at this time, but we will continue to accept your submissions and will process them after the maintenance is completed.
Sep 13, 14:24 UTC
Sep 12, 2018
Resolved - Our Plus OAI-PMH experienced a short (milliseconds) outage earlier today and failed to reset its status to operational after the incident, thus leading to a false report of a longer outage.
Sep 12, 20:20 UTC
Sep 11, 2018
Completed - The scheduled maintenance has been completed.
Sep 11, 15:00 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 11, 14:00 UTC
Scheduled - We will be undergoing scheduled maintenance during this time. Our members may experience delays in deposit system admin (doi.crossref.org) processing. Deposits submitted during this time will be stored and processed after the maintenance is completed.
Sep 10, 20:07 UTC
Resolved - The primary handle server we use (via CNRI) to register and update DOIs went down earlier today due to a DIS space issue. The primary handle was down from 10:00 to 11:30 UTC, and has since been fixed by CNRI. We are rerunning all submissions that failed due to this incident. All of these failed submissions will be rerun by 16:00 UTC today.
Sep 11, 10:00 UTC
Sep 10, 2018

No incidents reported.

Sep 9, 2018

No incidents reported.

Sep 8, 2018

No incidents reported.

Sep 7, 2018

No incidents reported.

Sep 6, 2018
Completed - The scheduled maintenance has been completed.
Sep 6, 17:30 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 6, 10:30 UTC
Scheduled - Today we'll be investigating some of the recent brief outages experienced on the Public REST API. This may cause the service to go down temporarily, but these investigations should reduce the change of future outages. Thanks for your patience.
Sep 6, 10:16 UTC
Resolved - The machine that processes submissions to the test deposit system (test.crossref.org) failed to process your deposits from 13:00 UTC to 15:00 UTC. We have since fixed the issue and your submissions are now being processed.
Sep 6, 13:00 UTC
Sep 5, 2018

No incidents reported.

Sep 4, 2018
Resolved - A short burst of user activity caused our Metadata Search to become unavailable between 08:45 and 08:50 UTC today.
Sep 4, 08:45 UTC