I think if you want to know that the result of duplicate checking is the same as that of the school, you'd better know what duplicate checking software or website the school uses, so if the price is not expensive, you can try to buy this software or this website to check duplicates.

The duplicate checking tool used in my school is HowNet, but we all used VIP in previous years. Hownet's price is relatively high, and you can also use dimension census. Most paper duplicate checking tools use words to calculate the price. You can go to VIP or other more reliable websites to check the duplicate.

I think you can try paperless tools for the first time. This tool is free and easy to use. You can pay attention to this WeChat official account to check the duplicate. But a mobile phone number can only be checked once for free.

After you try to check once, see how high your duplicate checking rate is. Our school requires that the duplicate checking rate should not exceed 15%. I wonder if the requirements of each school are the same. You can make the first revision according to your school's duplicate checking requirements. It is more reasonable to check with VIP later.