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Last checked 1m ago
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Crossref is up

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Official status page: https://status.crossref.org · Polled every 5 minutes · 31 components tracked

Crossref is operational right now. Last checked 1m ago; the most recent incident resolved 34d ago.

Real-time Crossref status, recent outages, and incident history — pulled directly from Crossref's official status page at https://status.crossref.org every 5 minutes. Pingoru tracks 31 Crossref services and has captured 21 incidents in the last 90 days (98.49% uptime). Get email, Slack, Discord, or webhook alerts the moment Crossref reports a new incident — free for 5 monitors, no credit card.

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Crossref uptime 98.49% uptime · past 90 days
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Recent outages & incidents

Past 90 days
  1. DOI Error Reports (Non-registered DOIs reported by end users for prefix…) were not sent between May 11th and June 10th 2026
    Resolved —
    Started Jun 10, 2026, 06:25 PM UTC · Resolved May 11, 2026, 04:00 AM UTC
    Timeline · 1 update
    • resolved · Jun 10, 2026, 06:25 PM UTC

      Due to a configuration change, we stored, but did not send out, DOI Error Reports starting on May 11th 2026. The problem was reported, identified, and a fix was implemented, on June 10th 2026. All DOI Error Reports from the outage period are intact and will be emailed shortly.

    Latest: Due to a configuration change, we stored, but did not send out, DOI Error Reports starting on May 11th 2026. The problem was reported, identified, and a fix was implemented, on Jun…

  2. Degraded service on REST API
    Resolved 7d 5h
    Started May 29, 2026, 12:12 PM UTC · Resolved Jun 05, 2026, 05:50 PM UTC
    Public REST APIPlus REST APIPolite REST API
    Timeline · 4 updates
    • investigating · May 29, 2026, 12:12 PM UTC

      We are experiencing delays in updating some metadata fields on the REST API. This includes citation counts, Retraction Watch retractions, aliased DOIs, and metadata in the member, journal, and funder routes. We are currently investigating the cause.

    • monitoring · May 29, 2026, 02:33 PM UTC

      A fix has been implemented and we are monitoring the results.

    • monitoring · Jun 01, 2026, 04:11 PM UTC

      We are continuing to monitor for any further issues.

    • resolved · Jun 05, 2026, 05:50 PM UTC

      This incident has been resolved.

    Latest: This incident has been resolved.

  3. Test admin tool - test.crossref.org - returning 503 status code errors after today's deployment
    Resolved 2h 7m
    Started May 14, 2026, 04:10 PM UTC · Resolved May 14, 2026, 06:17 PM UTC
    Test admin tool
    Timeline · 2 updates
    • investigating · May 14, 2026, 04:10 PM UTC

      We are currently investigating this issue.

    • resolved · May 14, 2026, 06:17 PM UTC

      This incident has been resolved.

    Latest: This incident has been resolved.

  4. Bug identified, possibly resulting in failed submissions. Emergency maintenance scheduled.
    Resolved 2h 38m
    Started May 08, 2026, 04:59 PM UTC · Resolved May 08, 2026, 07:38 PM UTC
    Admin toolTest admin toolWeb deposit formNew Metadata Manager
    Timeline · 5 updates
    • investigating · May 08, 2026, 04:59 PM UTC

      We have identified a bug in our system which may result in failing submissions at this time. An emergency release is scheduled for approximately 1900 UTC with a fix. During the release, our members may experience delays in deposit system admin tool (doi.crossref.org) processing. Deposits submitted during that time will be stored and processed after the maintenance has been completed.

    • investigating · May 08, 2026, 06:39 PM UTC

      We are continuing to investigate this issue.

    • identified · May 08, 2026, 07:01 PM UTC

      The issue has been identified and a fix is being implemented.

    • monitoring · May 08, 2026, 07:04 PM UTC

      Emergency release version 0.274.2 has been released. We are monitoring the results.

    • resolved · May 08, 2026, 07:38 PM UTC

      This incident has been resolved and the emergency maintenance has been completed.

    Latest: This incident has been resolved and the emergency maintenance has been completed.

  5. April 2026 JSON Snapshot is missing data for records created or updated on 4/29 and 4/30
    Resolved 2d 22h
    Started May 04, 2026, 01:45 PM UTC · Resolved May 07, 2026, 12:34 PM UTC
    JSON Snapshots
    Timeline · 3 updates
    • identified · May 04, 2026, 01:45 PM UTC

      Due to problems with API indexing that occurred between 4/29 and 5/3, the current JSON snapshot for April 2026 is missing 1-2 days of data. We've resolved the indexing issue and are currently re-pushing the missing records into the API. Once that's completed, over the next few days, we'll build and release a new snapshot for April.

    • identified · May 05, 2026, 12:38 PM UTC

      The corrected JSON snapshot is in process. It will be completed and available in the next 2-3 days.

    • resolved · May 07, 2026, 12:34 PM UTC

      The corrected April 2026 JSON snapshot has been released.

    Latest: The corrected April 2026 JSON snapshot has been released.

See the full Crossref outage history

8 more incidents in the last 90 days, plus the full multi-year archive of per-service events and update timelines.

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Outage history

Past 90 days · 13 incidents View full outage history →