devwords
Anyone who has browsed the web has hit a cryptic three-digit number telling them something went wrong with the page they wanted.
HTTP status codes are three-digit numbers that servers send back to report what happened with a request, and 404 specifically means 'Not Found,' indicating that the page or resource you asked for simply doesn't exist at that address. These codes follow rough categories, with 2xx meaning success, 4xx meaning something about the request itself was problematic, and 5xx meaning the server encountered its own internal error.
The server clocking out at 4:04 and payment required are both invented or mismatched explanations; payment required is actually the meaning behind the far less common status code 402, not 404.
Knowing the simple rule that 4xx codes point at the request while 5xx codes point at the server helps anyone browsing the web quickly understand whether a broken page is something they can potentially fix, like a mistyped URL, or something entirely outside their control.
devwords
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