404The role of pages

1to avoid dead links

Website Settings404pages, if the website appears dead links, search engine spiders crawling these URLs get the status of404”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 dead links affecting the inclusion of the website.

2to improve user experience

404pages are usually accessed by users on the website for non-existent or deleted pages, and the server returns404Error pages, inform 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 a search engine receives an incorrect link, the website should return404status code, telling the search engine to abandon the indexing of this link. And if it returns200 or302status code, 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 code instead of404status code.

4to avoid being penalized

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