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 error typically occurs when a user accesses a page that does not exist or has been deleted on the website. If the site owner fails to set up a custom 404 page, dead links will appear, which negatively impacts search engine crawling and indexing. ## Origin of 404 Not Found It is said that before the third technological revolution, the internet was essentially a large central database located in room 404. At that time, all requests were handled manually. If the requested file could not be found in the database or if the user entered an incorrect file number, they would receive a response message: room 404 : file not found. After the internet emerged, people gradually adopted "404" as the standard error code indicating that a server could not find the requested file. However, in reality, there is no such room 404. ## Two Major Benefits of Setting Up a 404 Page * Guide users not to leave the site, enhancing user experience. * Prevent the appearance of dead links. 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