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Java9 Process Api Improvements

📅 2026-06-20 | 📂 Java
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The 404 page is an essential part of any website, carrying significant responsibility for user experience and SEO optimization. A 404 error occurs when users visit a page that does not exist or has been deleted from the site. If webmasters do not set up a custom 404 page, dead links may appear, which can negatively impact search engine indexing when crawlers encounter such URLs.

Origin of 404 Not Found

Legend has it that before the Third Industrial Revolution, the form of the internet was one large central database located in Room 404. At that time, all requests were manually processed by humans. If the requested file could not be found in the database, or if the requester had written the wrong file number, they would receive a return message: room 404 : file not found. After the rise of the internet, people became accustomed to using 404 as the error code indicating that the server could not locate the requested file. Of course, historical verification shows that the legendary Room 404 never actually existed.

Two Major Benefits of Setting Up a 404 Page

  • Guide users not to close the website, enhancing user experience.
  • Prevent the appearance of dead links on your website.

Learn more about HTTP Status Codes.

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