Generally speaking, VIP official website does not have free duplicate checking, but if the school stipulates duplicate checking, it may provide students with a free duplicate checking opportunity of 1-2. If you run out of free duplicate checking opportunities, you need to pay for the paper yourself. General census weight is 3-4 yuan 1 thousand words.

If you want to check the weight for free, you can also use the paper series products first, such as paperfree, papertime and other weight checking systems. PaperFree perfectly realizes the whole process of "no paper detection-online real-time marking-comprehensive paper detection again-successful paper detection" for users.