checked Sep 17, 2026 1:39 AM UTC · Crossref's official status page
Is Crossref Working Right Now?
Yes. Crossref is up and running.
Crossref is currently operational with all systems functioning normally.
- Last broke
- Sep 16
- Uptime
- 99.94%
- Most impacted
- Sites
90 day period
All components operational
Service health
Service health, last 90 days
How to read this
The record
90 day period · not affected by the range aboveAvailability counts operational or degraded time as available, averaged equally across all monitored components. Partial outages count as half downtime and major outages count in full, scheduled maintenance is excluded from the calculation, and periods with no recorded status are counted as available rather than assumed down. Each component is tracked independently to give you a clear picture of overall service reliability.
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Recent Crossref outages & status updates
Status changes and service events for Crossref over the last 30 days
| S | M | T | W | T | F | S | |
|---|---|---|---|---|---|---|---|
| Jun 14 | |||||||
| Jun 21 | |||||||
| Jun 28 | |||||||
| Jul 5 | |||||||
| Jul 12 | 2 | 1 | 2 | ||||
| Jul 19 | 1 | 1 | |||||
| Jul 26 | |||||||
| Aug 2 | 1 | 2 | |||||
| Aug 9 | 1 | 1 | 1 | 1 | 1 | ||
| Aug 16 | 1 | 2 | 2 | 1 | |||
| Aug 23 | |||||||
| Aug 30 | 1 | ||||||
| Sep 6 | 1 | 1 | 1 | ||||
| Sep 13 | 1 | 1 |
Sites experienced a major outage
Sep 16 · resolved after 1h 4m
Scheduled maintenance on Content Registration
Sep 15 · resolved after 1h 46m
www.crossref.org was down for 70 mins on Sunday, 13 September; we're monitoring for the coming weeks
Sep 14 · reported by Crossref · ongoing
www.crossref.org was down for 70 mins
Sep 13 · reported by Crossref · resolved
Sites experienced a major outage
Sep 13 · resolved after 1h 2m
Content Registration experienced degraded performance
Sep 9 · resolved after 4h 21m
Sites experienced a major outage
Sep 9 · resolved after 44m
Content registration processing delays today
Sep 9 · reported by Crossref · resolved
Crossref active components
Browse Crossref products and components. Open a component to see its regions and set up alerts.
7 components tracked
Incidents · 90dStatus- Crossref APIs statusno incidentsOperational
- Crossref Content Registration status3 incidentsOperational
- Crossref Integrations and external dependencies statusno incidentsOperational
- Crossref Meta statusno incidentsOperational
- Crossref Metadata files statusno incidentsOperational
- Crossref Metadata Plus status5 incidentsOperational
- Crossref Sites status20 incidentsOperational
What is Crossref?
Crossref is a digital object identifier (DOI) registration agency that provides persistent identifiers and metadata for scholarly publications, enabling discoverability and citation tracking across academic and research communities.
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Common questions about monitoring Crossref and understanding service status
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