What is a 404 page? Set the importance of 404 pages.

First, what is 404 page

The 404 code is the HTTP protocol response status code. When a user sends a request to a website, the server cannot find the page information or the server cannot respond, and does not know the reason, it returns a page to the user. The 404 page is an error page designed by the website builder to give users a better experience when the page is not found or lost.

Second, the role of page 404

1. User experience

404 page usually refers to a page that does not exist or has been deleted on the website. The server returns 404 error page, telling the viewer that the requested page does not exist or the link has errors, and guiding the user to use other pages of the website instead of closing the window to leave.

2. Punished and demoted

Some websites return 200 status codes or 302 status codes due to the application of some incorrect server configurations. Although these status codes have no impact on the users who visit the website, they will mislead the search engine into thinking that the page is a valid page. If too many 404 pages are grabbed, a large number of duplicate pages will be created, It is likely that the search engine will think it is cheating and be punished.

3. Avoid dead chain

After setting 404 pages on the website, if there are dead links on the website, when the search engine grabs such URLs and gets a "404" status response, it knows that the URL has expired, it will not index the page anymore, and it will feed back to the data center to delete the page represented by the URL from the index database. Avoid affecting the website collection due to dead links.

For example, changes in the rules of web page URLs, renaming of web page files, and so on will lead to dead links. When the website is not set with 404 pages, the search engine can only get the wrong link when grabbing the page, and establish an error index for this link. In the process of increasing the dead link, the trust of the search engine to the website will be greatly reduced, thus affecting the website inclusion.

(404 error page)

　 Third, the causes of page 404

1. Enter the wrong address, and if the available file cannot be retrieved, a 404 page will be formed.

2. The change of the file directory or file name causes the link of the original web page to become invalid and the file cannot be found.

3. The original url is invalid.

4. If the file is moved to another directory, moving the file will also cause the original path to become invalid.

As long as the above mentioned minefields are avoided, the generation of 404 error pages can be solved

　 Point 4: How to set 404 pages

You can find some templates about 404 pages on the Internet and then change the content information into your own website. Here Shangpin Xiaobian kindly reminds you not to set 404 pages to automatically jump back to the home page, because this will be demoted by the home page. You can set and guide users to click back to the home page or return to the previous page.

Upload the file to the root directory of the space through FTP, open the space control panel, find the 404 page settings, upload and save them.