![]() ![]() HTTP's use of three-digit codes is similar to the use of such codes in earlier protocols such as FTP and NNTP.Īt the HTTP level, a 404 response code is followed by a human-readable "reason phrase". The following two digits indicate the specific error encountered. In the code 404, the first digit indicates a client error, such as a mistyped Uniform Resource Locator (URL). ![]() When communicating via HTTP, a server is required to respond to a request, such as a web browser request for a web page, with a numeric response code and an optional, mandatory, or disallowed (based upon the status code) message. The web site hosting server will typically generate a "404 Not Found" web page when a user attempts to follow a broken or dead link hence the 404 error is one of the most recognizable errors encountered on the World Wide Web. ![]() The 404 or Not Found error message is an HTTP standard response code indicating that the client was able to communicate with a given server, but the server could not find what was requested. ![]()
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