1, there is a problem with the database.
There is something wrong with the dynamic link of the webpage, and the database can't be connected, resulting in a dead chain. If the website has dead links, you can check whether there is a problem with the database first.
2. There is an error in the link
Move the location on the web page, otherwise the file will be lost or moved. If the website link is different from the destination, the link will also be disconnected. There is also the problem that there will be a small number of link errors when linking with the new website.
3, caused by an error in the server.
There is an error in the website server, which makes the website unable to operate normally, and will lead to a lot of dead chain problems in the website. The solution is to solve the server problem as soon as possible, so as to effectively prevent the website from going wrong.
As soon as a large number of dead chains appear on the website, they should be solved as soon as possible. If the problem is not solved in time and effectively, it may be a serious blow to the website and its weight will be reduced. If it is serious, there will be a ranking or K station.