Turnitin will take an 8 hour maintenance window on January 8th 00:00 – 08:00 UTC [go to Event Time Announcer - Turnitin Scheduled Maintenance January 7th, 2022 for local time]. While Turnitin’s systems are not expected to be offline for the entire 8 hours, Similarity Check users may experience some service interruptions during this maintenance window.
The Turnitin status page will be updated: Turnitin Status - Turnitin Scheduled Maintenance January 7th, 2022