Investigating - We are currently investigating an issue affecting the Plus service with low response times and possible outage for 11 minutes. We'll update here when we know the cause.
Sep 20, 11:47 UTC
Identified - Email confirmations from our test deposit system (test.crossref.org) are not currently being delivered. We're working on a fix.
May 24, 18:42 UTC
Investigating - We’re still experiencing problems with load on the Event Data service. Users may see their queries time out when using the API. We’re investigating and will confirm when the issue is resolved.
Jul 4, 13:15 UTC
APIs Degraded Performance
90 days ago
100.0 % uptime
Today
Public REST API ? Operational
90 days ago
100.0 % uptime
Today
Polite REST API ? Operational
90 days ago
100.0 % uptime
Today
OAI-PMH ? Operational
90 days ago
100.0 % uptime
Today
OpenURL ? Operational
90 days ago
100.0 % uptime
Today
Crossmark dialog server ? Operational
90 days ago
100.0 % uptime
Today
Content negotiation ? Operational
90 days ago
100.0 % uptime
Today
XML API ? Operational
90 days ago
100.0 % uptime
Today
Event Data Query API ? Degraded Performance
90 days ago
100.0 % uptime
Today
Metadata Plus Degraded Performance
90 days ago
99.99 % uptime
Today
Plus REST API ? Degraded Performance
90 days ago
99.98 % uptime
Today
Plus OAI-PMH ? Operational
90 days ago
100.0 % uptime
Today
XML Snapshots ? Operational
90 days ago
100.0 % uptime
Today
JSON Snapshots ? Operational
90 days ago
100.0 % uptime
Today
Sites Operational
90 days ago
99.87 % uptime
Today
Crossref website ? Operational
90 days ago
100.0 % uptime
Today
Crossref support ? Operational
90 days ago
100.0 % uptime
Today
Metadata search ? Operational
90 days ago
99.61 % uptime
Today
Content Registration Operational
90 days ago
99.9 % uptime
Today
Deposit system ? Operational
90 days ago
99.9 % uptime
Today
Test deposit system ? Operational
90 days ago
99.9 % uptime
Today
External dependencies Operational
90 days ago
100.0 % uptime
Today
AWS cloudFront ? Operational
90 days ago
100.0 % uptime
Today
Handle servers ? Operational
90 days ago
100.0 % uptime
Today
Similarity Check via iThenticate (Turnitin) status found at turnitin.status.io ? Operational
Meta Operational
90 days ago
100.0 % uptime
Today
deliberately-unreliable server ? Operational
90 days ago
100.0 % uptime
Today
Beta Operational
90 days ago
100.0 % uptime
Today
Participation Reports ? Operational
90 days ago
100.0 % uptime
Today
Metadata Manager ? Operational
90 days ago
100.0 % uptime
Today
Operational
Degraded Performance
Partial Outage
Major Outage
Maintenance
Major outage
Partial outage
No downtime recorded on this day.
had a major outage
had a partial outage
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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Content Negotiation Response Time
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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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Past Incidents
Sep 19, 2019

No incidents reported.

Sep 18, 2019

No incidents reported.

Sep 17, 2019
Completed - The scheduled maintenance has been completed.
Sep 17, 17:30 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 17, 17:00 UTC
Update - We will be undergoing scheduled maintenance during this time.
Sep 16, 17:13 UTC
Scheduled - We will be updating Crossref Metadata Search - https://search.crossref.org/ - at 17:00 UTC, 17 September 2019. Users may experience a brief service outage during this time.
Sep 16, 17:13 UTC
Completed - The scheduled maintenance has been completed.
Sep 17, 15:00 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 17, 14:00 UTC
Update - We will be undergoing scheduled maintenance during this time.
Sep 16, 16:06 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 has been completed.
Sep 16, 16:06 UTC
Sep 16, 2019
Resolved - Due to continued problems with last week's misconfigured test deployment, the datestamp for the daily citation updater for OAI-PMH got out of sync again on 14 September.
We've rerun the citation updater from 14 September forward and it is up to date now. OAI-PMH users will need to get the data from start of 14 September through end of 15 September. 16 September's data will be available tomorrow, 17 September, as of about 07:00 UTC.
Sep 16, 19:30 UTC
Sep 15, 2019

No incidents reported.

Sep 14, 2019

No incidents reported.

Sep 13, 2019

No incidents reported.

Sep 12, 2019
Resolved - Due to a misconfigured test deployment, the datestamp for the daily citation updater for OAI-PMH got out of sync. Each day at 06:00 UTC, the updater should pull all data for the preceding day. On 11 and 12 September at 06:00 UTC, it erroneously pulled data for the current day, not the previous. We've rerun the citation updater from 9 September forward and it is up to date now. The deployment that caused the error has also been corrected.

OAI-PMH users will need to get the data from start of 10 September through end of 11 September. 12 September's data will be available tomorrow, 13 September, as of about 07:00 UTC.
Sep 12, 20:10 UTC
Sep 11, 2019
Completed - The scheduled maintenance has been completed.
Sep 11, 14:45 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 11, 13:45 UTC
Update - We will be undergoing scheduled maintenance during this time.
Sep 10, 18:30 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 has been completed.
Sep 10, 18:30 UTC
Sep 10, 2019

No incidents reported.

Sep 9, 2019

No incidents reported.

Sep 8, 2019

No incidents reported.

Sep 7, 2019

No incidents reported.

Sep 6, 2019

No incidents reported.