YouTip

## 404 NOT FOUND! Sorry, the article you are looking for was not found!! The 404 page is an essential part of any website, playing a crucial role in 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 administrator does not set up a proper 404 page, dead links will appear, which is detrimental to search engine indexing when crawlers encounter such URLs. ## Origin of "404 Not Found" It is said that before the Third Industrial Revolution, the internet took the form of a large centralized 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 indicating that the server could not find the requested file. Of course, in reality, there is no actual Room 404 as described in this legend. ## Two Benefits of Setting Up a 404 Page * Guide users to stay on the website, enhancing user experience. * Prevent dead links on the website. 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