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404 NOT FOUND!

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The 404 page is an essential part of any website, playing a critical role in user experience and SEO optimization. A 404 page is returned by the server when a user attempts to access a page that does not exist or has been deleted. If a website administrator does not set up a custom 404 page, broken links will appear, which negatively impacts 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. 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 the message: "room 404: file not found". Later, as the internet grew, people began using "404" as the standard error code for when a server could not locate a file. Of course, the existence of an actual "room 404" remains unverified.

Two Benefits of Setting Up a 404 Page

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

Learn more about HTTP Status Codes.

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