Turnitin, iThenticate 2.0, Crossref, Similarity, and Originality in the Europe and Asia Pacific region have experienced an unexpected service incident. Users may have experienced delay in Similarity Report generation. Users accessing Turnitin via an integration may have also been affected.
We are pleased to advise that service has been restored.
The incident occurred between the following times:
Europe Region: PDT: Sunday, 20th of September at 17:00 - Sunday, 20th of September at 19:20 BST: Monday, 21st of September at 01:00 - Monday, 21st of September at 03:20 AEST: Monday, 21st of September at 10:00 - Monday, 21st of September at 12:20
Asia Pacific Region: PDT: Sunday, 20th of September at 17:45 - Sunday, 20th of September at 20:00 BST: Monday, 21st of September at 01:45 - Monday, 21st of September at 04:00 AEST: Monday, 21st of September at 10:45 - Monday, 21st of September at 13:00
We regret any inconvenience this may have caused if you were impacted by today’s incident.
Posted Sep 20, 2026 - 20:35 PDT
This incident affected: Europe (EU environment) (Report Processing Time), Asia Pacific (Asia Pacific environment) (Report Processing Time), iThenticate 2.0 (Similarity Report Generation), Turnitin (Turnitin Report Processing Time), and Crossref Similarity Check ((v2) Similarity Reports Generation).