404The role of pages

1to avoid dead links

Website Settings404pages, if the website appears dead links, search engine spiders crawling these URLs receive the status of404”status response, it is known that the URL has expired, so the web page is no longer indexed, and feedback is given to the data center to delete the web page represented by the URL from the index database. Avoid affecting the website's inclusion due to dead links.

2to improve user experience

404pages are usually pages that users have accessed that do not exist or have been deleted on the website, and the server returns404error pages, informing the browser that the requested page does not exist or the link is incorrect, while guiding users to use other pages of the website instead of closing the window and leaving, eliminating the user's frustration.

3to avoid a drop in trust

Search engines identify the status of web pages through HTTP status codes. When a search engine receives a broken link, the website should return404status codes to tell the search engine to abandon the index of this link. And if the response is200 or302status codes, the search engine will create an index for this link, which leads to a large number of different links pointing to the same web content. As a result, the search engine's trust in the website is greatly reduced. Many websites have this problem:404the page returns200 or302status codes instead of404status codes.

4to avoid punishment

Some websites due to some incorrect server configurations may return200 status code or302Status codes, although these status codes have no effect on users visiting the website, they may mislead search engines and make search engines believe that this page is a valid page, thereby capturing it. If404Too many pages have caused a large number of duplicate pages, which may be considered cheating by search engines and punished accordingly.