YouTip

## 404 NOT FOUND! Sorry, the article you are looking for could not be 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 a server 404 error. If the site owner does not set up a custom 404 page, dead links will appear, which hinders search engine crawling and indexing. ## Origin of the 404 Not Found Error It is said that before the Third Industrial Revolution, the internet resembled a large centralized database housed 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 indicating that the server could not locate a requested file. Of course, in reality, there is no actual Room 404 behind this legend. ## Two Benefits of Setting Up a 404 Page * Guide users not to leave the website, thereby enhancing user experience. * Prevent the occurrence of dead links on the website. 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