HTTP Status Codes

100 Continue

The server has received the request headers and the client should proceed to send the request body.

200 OK

The request has succeeded and the server is returning the requested data.

201 Created

The request has succeeded and a new resource has been created.

301 Moved Permanently

The requested resource has been permanently moved to a new URL.

302 Found

The requested resource is temporarily located at a different URL.

304 Not Modified

The resource has not been modified since the last request, use the cached version.

307 Temporary Redirect

The resource is temporarily at a different URL — preserve the HTTP method.

400 Bad Request

The server cannot process the request due to client-side input errors.

401 Unauthorized

Authentication is required but was missing or invalid.

403 Forbidden

The client is authenticated but does not have permission to access the resource.

404 Not Found

The requested resource could not be found on the server.

405 Method Not Allowed

The HTTP method used is not allowed for this resource.

408 Request Timeout

The server timed out waiting for the client to send the complete request.

413 Payload Too Large

The request body exceeds the server's maximum allowed size.

422 Unprocessable Entity

The request has valid syntax but contains semantic validation errors.

500 Internal Server Error

The server encountered an unexpected condition that prevented it from fulfilling the request.

502 Bad Gateway

The server acting as a gateway received an invalid response from an upstream server.

503 Service Unavailable

The server is temporarily unable to handle the request, typically due to maintenance or overload.