Turnitin experienced a minor incident on May 21, 2025 affecting Turnitin Logins and Native website login and 1 more component, lasting 1h 11m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- identified May 21, 2025, 12:08 PM UTC
We’ve run into some issues. Simcheck, Similarity, Originality, Crossref Similarity Check, and iThenticate V2 is currently experiencing an unexpected service incident. During this time, you may find that you encounter slowness or error messages accessing these products. We invite you to track the progress of this incident while we work to bring the service back to optimum health.
- resolved May 21, 2025, 01:19 PM UTC
We’ve fixed it! Due to an unexpected service incident, users in Europe may have encountered slowness or error messages within SimCheck, Similarity, Originality, Crossref Similarity Check, and iThenticate V2 today. We are pleased to advise that service has been restored. The incident occurred between the following times: PDT: May 21st, 02:00 - May 21st, 05:35 BST: May 21st, 10:00 - May 21st, 13:35 AEST: May 21st, 19:00 - May 21st, 22:35 We regret any inconvenience this may have caused if you were impacted by today’s incident.