vaportrails:
I have lurked here for awhile and I am not about to ask the dreaded question of who is the best and trustworthy. I would like to know which companies are not being used by Turnitin.
Sites like turnitin only compare your work to: (1) material that is already posted somewhere on the Internet and (2) material that has already been submitted to them and retained in their databanks. It has nothing to do with what essay site provides any work if the student chooses to submit it as his or her own work for credit.
Commercial essay sites use their own proprietary software to test their writers' work because once it's submitted to a commercial service like turnitin, it goes right into their files and would get flagged the very next time it's run through. As long as the person who actually wrote the work didn't plagiarize it from another source, nothing that's custom written should ever get flagged; cheaper pre-written essays that have been resold many times are a totally diferent story, obviously. Any reputable company makes very clear which papers are pre-written and they charge a lot more for custom work.