Http Status Codes Overview

✅ HTTP Status Codes Overview

HTTP status codes are grouped by their first digit:

These mean:

✅ “Everything worked!” — the server understood and processed your request successfully.

Code	Name	Meaning
200	OK	Standard response for a successful request. Everything is fine.
201	Created	A new resource was successfully created (e.g., after a POST).
202	Accepted	Request accepted for processing, but not completed yet (e.g., queued).
203	Non-Authoritative Info	Server returned info from a third party (e.g., proxy), not original source.
204	No Content	Success, but nothing to return in the body. Often used in DELETEs.
205	Reset Content	Tells client to reset the form/view. Rare.
206	Partial Content	Partial response (e.g., used for range requests — like video streaming).

🧠 These are your happy codes — everything worked, and your app can proceed.

These mean:

📍 “You’re in the right direction, but need to go somewhere else to complete it.”

Code	Name	Meaning
300	Multiple Choices	Several options for the resource (e.g., language versions).
301	Moved Permanently	Resource moved forever to a new URL. Update bookmarks.
302	Found (Temp Redirect)	Temporarily moved. Come back to the original URL next time.
303	See Other	Redirect to another URI using a GET request. Common after POSTs.
304	Not Modified	Resource not changed since last request. Use your cache.
305	Use Proxy (Deprecated)	Use a proxy to access this resource. Almost always ignored today.
306	(Unused)	Reserved but not used anymore.
307	Temporary Redirect	Like 302, but preserves method (e.g., POST stays POST).
308	Permanent Redirect	Like 301, but preserves method.

🧭 These codes tell the browser or client where to go next — either temporarily or permanently.

These mean you (the client) did something wrong. Examples:

Code	Name	Meaning
400	Bad Request	Your request is malformed (e.g., bad JSON, missing parameters).
401	Unauthorized	You need to authenticate (e.g., missing/invalid token).
403	Forbidden	You're authenticated but not allowed to access the resource.
404	Not Found	The requested resource doesn’t exist.
405	Method Not Allowed	You used the wrong HTTP method (e.g., POST instead of GET).
422	Unprocessable Entity	Semantically correct but invalid data (common in APIs).
429	Too Many Requests	You're being rate-limited (too many requests in a short time).

🧠 These errors usually mean you need to fix the request — your app, form, or client made a mistake.

These mean the server failed while trying to process a valid request.

Code	Name	Meaning
500	Internal Server Error	A generic error — the server crashed or had an unexpected issue.
501	Not Implemented	Server doesn't support the request method or functionality.
502	Bad Gateway	A proxy/gateway received an invalid response from upstream.
503	Service Unavailable	Server is down or overloaded. Retry later.
504	Gateway Timeout	Timeout from upstream server — the backend took too long.

⚠️ These errors are not your fault as the client — the server or its configuration needs to be fixed.