Outage in Crossref

Investigating an outage

Resolved Major

June 16, 2026 - Started 3 days ago - Lasted about 4 hours
Official incident page

Incident Report

We are investigating an incident with multiple tools and services including: - Web deposit form (https://apps.crossref.org/webDeposit) - Participation Reports (https://crossref.org/members/prep/) - Browsable title list (https://www.crossref.org/titleList/) - Other reports and forms under crossref.org Starting from around 04.16am UTC on 16 June, users attempting to access these tools have been receiving 503 errors. Our technical team are investigating. We'll provide updates as soon as we know more.

Components affected

Crossref Participation reports Crossref Web deposit form

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Latest Updates ( sorted recent to last )

RESOLVED 3 days ago - at 06/16/2026 11:59AM

Participation Reports, the web deposit form, and other small apps and reports have been fully operational again since about 08.30am UTC.

MONITORING 3 days ago - at 06/16/2026 08:41AM

A fix has been implemented. The services are available again and working as expected. We are now monitoring their performance and continuing to investigate the cause of the incident.

INVESTIGATING 3 days ago - at 06/16/2026 08:15AM

We are investigating an incident with multiple tools and services including:
- Web deposit form (https://apps.crossref.org/webDeposit)
- Participation Reports (https://crossref.org/members/prep/)
- Browsable title list (https://www.crossref.org/titleList/)
- Other reports and forms under crossref.org

Starting from around 04.16am UTC on 16 June, users attempting to access these tools have been receiving 503 errors.

Our technical team are investigating. We'll provide updates as soon as we know more.

Latest Crossref outages

Degraded service on REST API - 21 days ago

Test admin tool - test.crossref.org - returning 503 status code errors after today's deployment - about 1 month ago

Bug identified, possibly resulting in failed submissions. Emergency maintenance scheduled. - about 1 month ago

April 2026 JSON Snapshot is missing data for records created or updated on 4/29 and 4/30 - about 2 months ago

REST API Indexing Stalled since April 29th. Impacts on downstream services. - about 2 months ago

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