http-status-codes-reference

HTTP Status Codes Reference

HTTP status codes are three-digit numbers returned by web servers that indicate the result of a client request. They are essential for web developers to understand and diagnose website issues.

Codes are grouped into five categories: 1xx (Informational), 2xx (Success), 3xx (Redirection), 4xx (Client Errors), and 5xx (Server Errors).

Common Codes

200 OK means the request succeeded. 301 Moved Permanently redirects search engines to a new URL. 404 Not Found indicates the requested page does not exist. 500 Internal Server Error means something went wrong on the server.