The qualified standard of college students' paper duplicate checking rate is usually stipulated by the school, which is generally below 30%. If the duplicate checking rate exceeds this standard, it will be regarded as plagiarism or too much copying and pasting, and it may not pass the school's paper review. The specific standards may vary according to different disciplines and majors. It is suggested to consult the school or tutor first to understand the duplicate checking rate requirements of papers in your major or course.

It should be noted that different duplicate checking system algorithms are different from databases, so the duplicate checking results will be different. For the first draft of the paper, it is suggested that the paper series free duplicate checking software such as paperfree, papertime and paperday can be used for testing, and for the final draft, the duplicate checking system required by the school can be used for testing. Ensure the accuracy and effectiveness of duplicate checking.