What are the main groups of HTTP response codes you know?

The main groups of HTTP response codes are divided into five classes:

• 1xx (Informational): Confirm receipt of the request and continue processing.
• 2xx (Successful): The request was successfully processed (e.g., 200 OK).
• 3xx (Redirection): The client must take additional actions to complete the request (e.g., 301 Moved Permanently).
• 4xx (Client errors): Errors on the client side, such as a bad request or lack of access (404 Not Found, 403 Forbidden).
• 5xx (Server errors): Errors on the server side when the request cannot be fulfilled due to server issues (500 Internal Server Error).

Understanding these groups is important for testing and debugging web applications.