Outage in Crossref
Main website down between 05:46 UTC and 06:47 UTC
Resolved MajorIncident Report
The main Crossref website (www.crossref.org) has been down since 05:46 UTC. We are investigating the cause of the issue.
Components affected
Crossref websiteTrusted by 1,000+ teams
Never miss outages in third-party dependencies
Stop finding out about outages from your users. Monitor 6,320+ cloud services and get alerted the second something breaks.
Latest Updates ( sorted recent to last )
RESOLVED
22 days ago - at 04/17/2026 10:23AM
From 05:46 UTC on 17 April we experienced a sustained surge of traffic to our website, which was caused by bot activity distributed across multiple IP addresses. The service recovered automatically without intervention after about an hour, and we have since applied tighter rate-limiting to the source. We are also reviewing options to further improve the scalability and resilience of the service going forward.
MONITORING
22 days ago - at 04/17/2026 07:04AM
The website is available again. We are monitoring the situation.
INVESTIGATING
22 days ago - at 04/17/2026 06:32AM
The main Crossref website (www.crossref.org) has been down since 05:46 UTC. We are investigating the cause of the issue.
Latest Crossref outages
Bug identified, possibly resulting in failed submissions. Emergency maintenance scheduled. - about 20 hours ago
April 2026 JSON Snapshot is missing data for records created or updated on 4/29 and 4/30 - 5 days ago
Crossref Resolution Reports unavailable - about 2 months ago
Crossref DOIs not resolving/ DOI registration failing - about 2 months ago
Never miss outages in third-party dependencies
With IsDown, you can monitor all your critical services' official status pages from one centralized dashboard and receive instant alerts the moment an outage is detected. Say goodbye to constantly checking multiple sites for updates and stay ahead of outages with IsDown.
Start free trialNo credit card required · Cancel anytime · 6320 services available
Integrations with
