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HTTP Status Codes Guide — Complete Reference
A complete guide to HTTP status codes. Learn what each code means, when it occurs, and how to troubleshoot common HTTP errors.
What are HTTP Status Codes?
HTTP status codes are three-digit responses from a server indicating the result of a request. They are grouped into five classes: 1xx (informational), 2xx (success), 3xx (redirect), 4xx (client error), and 5xx (server error).
Understanding these codes helps developers debug API calls, configure web servers, and improve user experience.