What is Error 404?
File not found, an error your web browser flags. A 404 error message can be the fault of the user (if they mistyped the URL, for example) or the publisher of the website. This can happen when a web page has been deleted and no longer exists, which is also called a broken link. To prevent these errors, create a redirect to take the user to the new location of the page. Setting up a standardized error 404 page for your domain can help make you better users, especially if you provide a search bar or list of similar content.
Example
Suppose you attempt to visit a webpage on a website by typing the URL directly into your web browser’s address bar. However, the webpage you’re trying to access has been deleted or moved, and the server cannot locate it.
As a result, instead of displaying the intended webpage, the server responds with a 404 error message, indicating that the requested page could not be found. The error message typically includes additional information, such as “404 Not Found” or “The requested URL [URL] was not found on this server,” along with a suggestion to check the URL for typos or contact the website administrator for assistance.
In this example, encountering Error 404 informs you that the webpage you’re trying to access is unavailable, either due to being deleted, moved, or entered incorrectly. It’s a common occurrence on the web and indicates that the requested resource cannot be located on the server.