For a manual check, you can paste specific sentences into Google in quotation marks to see if they appear elsewhere online. Summary Checklist for Students
Occasionally, a student worker or instructor leaks their master enrollment link. These are because they come directly from paying institutions. Search pastebin.com for strings like:
is a paid subscription service for institutions, there is no legitimate public list of "free" universal codes . Students can find their specific codes through:
"To enroll in Turnitin: go to Turnitin.com → Enroll in a Class. Enter Class ID: [CLASS_ID] and Enrollment Key: [ENROLLMENT_KEY]. Use your [institutional/personal] account and contact me if you have issues."
If your institution does not provide a direct Turnitin portal, consider these legitimate alternatives: Turnitin: Getting Started (For Instructors) - KU Help
