404the role of pages

1to avoid dead links

Website Settings404pages, if the website appears dead links, search engine spiders crawling such URLs get404”status response, knowing that the URL has expired, it will no longer index the web page, and will feedback to the data center to delete the web page represented by the URL from the index database. Avoid dead links affecting the inclusion of the website.

2to improve user experience

404pages are usually for users who have accessed non-existent or deleted pages on the website, and the server returns404error pages, tell the browser that the requested page does not exist or the link is incorrect, and guide users to use other pages on 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 search engines get an incorrect link, the website should return404status code, to tell search engines to give up indexing this link. And if returned200 or302status codes, search engines will build an index for this link, which leads to a large number of different links pointing to the same page content. As a result, the trust of search engines 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 the application of some incorrect server configurations, resulting in the return of200 status code or302Status codes, although these status codes do not affect users visiting the website, they may mislead search engines and make search engines think that this page is a valid page, thereby capturing it. If404Too many pages have caused a large number of duplicate pages, which are very likely to be penalized by search engines.