404The role of the page

1to avoid dead links

Website Settings404page, if the website appears dead links, search engine spiders crawling such URLs receive404”status response, knowing that the URL has expired, stops indexing the web page, and feeds back to the data center to delete the web page represented by the URL from the index database. Avoid affecting the inclusion of the website due to dead links.

2to improve user experience

404page usually occurs when a user accesses a non-existent or deleted page on the website, and the server returns404Error page, 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 decrease in trust

Search engines identify the status of web pages through HTTP status codes. When a search engine receives an erroneous link, the website should return404status code, telling search engines to abandon the indexing of this link. And if the return200 or302status code, search engines 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 trust level of search engines for the website is greatly reduced. Many websites have this problem:404the page returns200 or302status code instead of404status code.

4to avoid being penalized

Some websites, due to some incorrect server configurations, return200 status code or302Status codes, although these status codes do not affect users visiting the website, they may mislead search engines, making search engines believe that this page is a valid page and thus crawling it. If404Too many pages can result in a large number of duplicate pages, which may be penalized by search engines as cheating.