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404 NOT FOUND!

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The 404 page is an essential part of a website, playing a crucial role in user experience and SEO optimization. A 404 page is typically returned by the server when a user accesses a page that does not exist or has been deleted. If the website owner does not set up a custom 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 was essentially a large central database located in Room 404. At that time, all requests were manually handled by humans. 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: "room 404 : file not found". Later, as the internet grew, people became accustomed to using 404 as the error code indicating that the server could not find the requested file. Of course, in reality, the legendary Room 404 never existed.

Two Benefits of Setting a 404 Page

  • Guide users not to leave the website, enhancing user experience.
  • Prevent dead links on the website.

Learn more about HTTP Status Codes.

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