Scheduled maintenance is currently in progress. We will provide updates as necessary.
Posted Jul 22, 2021 - 20:00 UTC
Scheduled
We will be upgrading our database later today and tomorrow. Users of our Test admin tool - test.crossref.org - may experience intermittent performance issues during this time.
Posted Jul 22, 2021 - 19:38 UTC
This scheduled maintenance affected: Content Registration (Test admin tool).