YouTip

## 404 NOT FOUND! Sorry, the article you are looking for was not found!! The 404 page is an essential page for any website, bearing significant responsibility for user experience and SEO optimization. A 404 page typically appears when users access pages that do not exist or have been deleted on the website, resulting in the server returning a 404 error. If the site owner does not set up a 404 page, dead links will appear, and search engine crawlers visiting such URLs will be detrimental to search engine indexing. ## Origin of the 404 Not Found Error It is said that before the Third Industrial Revolution, the internet took the form of a large central database located in Room 404. At that time, all requests were handled manually by staff; if the requested file was not found in the database—or if the requester entered an incorrect file number—the user would receive a response: "room 404: file not found." Later, as the internet developed, people became accustomed to using "404" as the error code for "file not found" on servers. Of course, in reality, the legendary Room 404 does not exist. ## Two Benefits of Setting Up a 404 Page * Guide users not to close the website, enhancing user experience. * Prevent dead links on the website. 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