We are continuing to verify that the maintenance was successful. -IF
Posted 6 days ago. Mar 29, 2025 - 13:48 UTC
Verifying
Verification is currently underway for the maintenance items.
Posted 6 days ago. Mar 29, 2025 - 13:39 UTC
Update
Our admin tool - doi.crossref.org - and other services are now back online. We're now accepting your submissions and will begin processing the backlog shortly. -IF
Posted 6 days ago. Mar 29, 2025 - 13:37 UTC
Update
Our checks have passed and we're now bringing the system - doi.crossref.org and other services - back online. -IF
Posted 6 days ago. Mar 29, 2025 - 13:12 UTC
Update
Emergency maintenance is still in progress. We've made the necessary changes in our database and our now performing checks before bringing our systems back online. -IF
Posted 6 days ago. Mar 29, 2025 - 12:37 UTC
In progress
Scheduled maintenance is currently in progress. We will provide updates as necessary.
Posted 6 days ago. Mar 29, 2025 - 11:00 UTC
Scheduled
We’re experiencing slow processing times and a growing submission and query queue size, with some days’ old submissions still queued. Attempts to tune the database to improve performance have not yet resolved the issue. Because of this, and in order to reduce the risk of further problems, we will be conducting emergency, unplanned maintenance tomorrow, Saturday, 29 March, from 11:00 to 14:00 UTC.
The emergency maintenance will require complete downtime, during which most Crossref services will be unavailable. Attempts to access these services, including making a metadata deposit, will receive an error message, and you will need to retry when services are back online. We will not store or queue attempted metadata deposits or updates made during the downtime. This downtime will not affect the resolution of Crossref DOI links, which will continue to work, nor the REST API for retrieving metadata. We apologize for any disruption to registering your metadata, but we want to get these issues resolved ahead of the end of the month/quarter and push through the delayed submissions ASAP.
We will update this incident report throughout the maintenance window.
Posted 7 days ago. Mar 28, 2025 - 17:22 UTC
This scheduled maintenance affected: Content Registration (Admin tool, Test admin tool, Web deposit form, Record registration form), Metadata Plus (Plus OAI-PMH, Plus content negotiation), APIs (OAI-PMH, XML API, Event Data Query API, OpenURL, Crossmark dialog server, Public content negotiation, Polite content negotiation), and Beta (Metadata Manager).