Online university rankings have certain reference significance, but they can't be completely believed, because universities have some small changes every year. You must know the dynamics of this society through more authoritative information, but you can't completely trust some online rankings. They are all ranked according to the scores of past years, and universities are determined by the state. For example, key universities must have their own characteristics. Some key universities are ranked according to their admission scores. Many modern schools in China are divided into good universities and poor universities, which are ranked by the quality of students and scores. Some things on the internet can't be completely denied, but they can't be completely absorbed.