Outage in Turnitin

Turnitin Service Incident - 18th December 2025

Resolved Minor

December 18, 2025 - Started about 2 months ago - Lasted 26 minutes
Official incident page

Incident Report

We’ve run into some issues. Crossref Similarity Check V2, iThenticate V2, Turnitin Similarity, SimCheck, Originality and Authorship are currently experiencing an unexpected service incident. During this time, you may find that submissions are slow to generate Similarity reports. We invite you to track the progress of this incident while we work to bring the service back to optimum health.

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Latest Updates ( sorted recent to last )

RESOLVED about 2 months ago - at 12/18/2025 11:07AM

We’ve fixed it!

Due to an unexpected service incident, you may have experienced delayed report generation in Crossref Similarity Check V2, iThenticate V2, Turnitin Similarity, SimCheck, Originality and Authorship today. We are pleased to advise that service has been restored.

The incident occurred between the following times:

PST: Tuesday, 18th 00:53 - Tuesday, 18th 03:02
GMT: Tuesday, 18th 08:53 - Tuesday, 18th 11:02
AEDT: Tuesday, 18th 19:53 - Tuesday, 18th 22:02

We regret any inconvenience this may have caused if you were impacted by today’s incident.

IDENTIFIED about 2 months ago - at 12/18/2025 10:40AM

We’ve run into some issues.

Crossref Similarity Check V2, iThenticate V2, Turnitin Similarity, SimCheck, Originality and Authorship are currently experiencing an unexpected service incident.

During this time, you may find that submissions are slow to generate Similarity reports.

We invite you to track the progress of this incident while we work to bring the service back to optimum health.

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