HTTP response status codes

HTTP response status codes

HTTP status codes are essential for communication between the client-side and server-side components of your application.
HTTP response status codes indicate whether a specific HTTP request has been successfully completed. Responses are grouped in five classes:

Informational responses (100 – 199)
Successful responses (200 – 299)
Redirection messages (300 – 399)
Client error responses (400 – 499)
Server error responses (500 – 599)

Informational responses (100 – 199)
Successful responses (200 – 299)

Redirection messages (300 – 399)
Client error responses (400 – 499)

Server error responses (500 – 599)