404the role of the page

1to avoid dead links

Website Settings404page, if the website appears dead links, search engine spiders crawling such URLs get404”status response, it is known that the URL has expired, and the web page will no longer be indexed, and the data center will be informed to delete the web page represented by the URL from the index database. Avoid affecting the website's inclusion due to dead links.

2to enhance user experience

404page usually refers to the user accessing a page that does not exist or has been deleted on the website, and the server returns404Error page, informing the browser that the requested page does not exist or the link is incorrect, and at the same time guiding the user 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 an erroneous link, the website should return404status code to tell the search engine to abandon the index of this link. And if the response is200 or302status code, the search engine will create an index for this link, leading to a large number of different links pointing to the same page 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 punishment

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