The DOI Foundation incident

Unusual traffic spike resulting in problems resolving DOIs for a percentage of traffic

Notice Resolved View vendor source →

The DOI Foundation experienced a notice incident on October 17, 2025 affecting DOI Resolution Service, lasting —. The incident has been resolved; the full update timeline is below.

Started
Oct 17, 2025, 04:49 AM UTC
Resolved
Oct 17, 2025, 04:49 AM UTC
Duration
—
Detected by Pingoru
Oct 17, 2025, 04:49 AM UTC

Affected components

DOI Resolution Service

Update timeline

  1. resolved Oct 17, 2025, 04:49 AM UTC

    At 2025-10-17 03:08Z lasting for a minute or so, there was a surge of resolution traffic at doi.org at maybe 150x normal traffic. We suspect this may have been a DDoS attempt or a test of a possible DDoS technique. Resolution was impacted for ordinary users of doi.org; as many as 80000 resolution requests (approximately 5% of the apparently legitimate traffic during this time) received various errors, most in the first few minutes but some as late as 03:32Z. Currently resolution is normal but we continue to monitor.