Pillar · 6 errors
HTTP Status Errors
Every page your server returns comes with an HTTP status code. When that code is in the 4xx or 5xx range, visitors hit a wall instead of your content. These are the most common — and most damaging — website errors, because they stop a page from loading at all.
500500 Internal Server Error A 500 is the server’s way of saying "something broke on my end. critical 502502 Bad Gateway A 502 means one server got an invalid response from another upstream server. critical 503503 Service Unavailable A 503 says the server is temporarily unable to handle the request — usually overload or maintenance. critical 404404 Not Found A 404 means the page the visitor requested doesn’t exist at that URL. high 504504 Gateway Timeout A 504 means a gateway waited for the backend and the backend never answered in time. high 403403 Forbidden A 403 means the server understood the request but refuses to authorize it. high