Page Not Found |Tutorial

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About Tutorial

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About Us Disclaimer Mobile App Download Tutorial Sitemap Programmer Learning Path Runoob Notes Problems Opening CHM Files...

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404 NOT FOUND!

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Sorry, the article you requested could not be found!

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The 404 page is an essential component of a website, playing a crucial role in user experience and SEO optimization. A 404 page typically appears when users visit pages that do not exist or have been deleted on the website, resulting in the server returning a 404 error. If the site owner does not set up a 404 page, dead links will appear, which hinders search engine indexing when crawlers encounter such URLs.

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Origin of "404 Not Found"

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It is said that before the Third Industrial Revolution, the internet was structured as 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." After the rise of the internet, people gradually adopted "404" as the standard error code for "file not found" on servers. Of course, in reality, there is no actual Room 404 as described in this legend.

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Two Major Benefits of Setting Up a 404 Page

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• Guide users not to leave the website, enhancing user experience.
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• Prevent dead links on the website.
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For more information, see the HTTP Status Codes Introduction.

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