HTTP Status Codes
Comprehensive HTTP Status Code Reference Guide - Learn about redirect codes, error codes, and success codes
499 Client Closed Request (HTTP Status Code 499)
HTTP status code 499 is a non-standard status code primarily used by the Nginx web server. This status code is not part of the HTTP standard but is useful in practical applications, especially for handling situations where the client closes the connection prematurely.
500 Internal Server Error (HTTP Status Code 500)
HTTP status code 500 is a common server-side error status code indicating that the server encountered an unexpected condition that prevented it from fulfilling the request.
501 Not Implemented (HTTP Status Code 501)
The HTTP 501 error, meaning "Not Implemented," is a server error status code indicating that the server does not support the functionality required to fulfill the request.
502 Bad Gateway (HTTP Status Code 502)
Status code 502 Bad Gateway is an HTTP error response code indicating that a server acting as a gateway or proxy received an invalid response from an upstream server.
503 Service Unavailable (HTTP Status Code 503)
The HTTP 503 status code indicates that the server is temporarily unable to handle the request.
504 Gateway Timeout (HTTP Status Code 504)
The HTTP 504 (Gateway Timeout) status code indicates that a server acting as a gateway or proxy timed out while waiting for a response from an upstream server.