5xx Server Error
Server error responses indicate that the server is aware that it has erred or is incapable of performing the request. The client request was valid, but the server failed to process it.
Internal Server Error
A generic catch-all response indicating the server encountered an unexpected condition that prevented it from fulfilling...
Not Implemented
The server does not support the functionality required to fulfill the request, usually because the HTTP method is not re...
Bad Gateway
The server, while acting as a gateway or proxy, received an invalid response from the upstream server it accessed.
Service Unavailable
The server is currently unable to handle the request due to a temporary overload or scheduled maintenance.
Gateway Timeout
The server, acting as a gateway or proxy, did not receive a timely response from the upstream server.
HTTP Version Not Supported
The server does not support the HTTP protocol version used in the request.
Variant Also Negotiates
The server has an internal configuration error resulting in a circular reference during content negotiation.
Insufficient Storage
The server is unable to store the representation needed to complete the request (WebDAV).
Loop Detected
The server terminated an operation because it encountered an infinite loop while processing a request with "Depth: infin...
Not Extended
Further extensions to the request are required for the server to fulfill it.
Network Authentication Required
The client needs to authenticate to gain network access, typically seen at captive portals like public Wi-Fi networks.