Error 504 code example

Example 1: error 503

A 503 Service Unavailable Error is an HTTP response status code indicating that a server is temporarily unable to handle the request. This may be due to the server being overloaded or down for maintenance. This particular response code differs from a code like the 500 Internal Server Error we explored some time ago

Example 2: http 504

504 Gateway Timeout

Example 3: http status 502

502 Bad Gateway