HTTP 3xx Redirection Codes

The 3xx class indicates the client must take additional action to complete the request.

Code	Name	Summary
300	Multiple Choices	Several representations available.
301	Moved Permanently	Permanent redirect.
302	Found	Temporary redirect (legacy semantics).
303	See Other	Redirect to a different URI; use GET.
304	Not Modified	Cached representation is still valid.
305	Use Proxy	Deprecated.
306	(Unused)	Reserved.
307	Temporary Redirect	Temporary; method preserved.
308	Permanent Redirect	Permanent; method preserved.

Rarely used on the public web; content negotiation is usually implicit.

Permanent relocation.
Caching: Heavily cached; clients may hardcode. Set long but deliberate TTLs.
SEO: Transfers ranking signals over time.

Temporary redirect. Historical clients converted POST→GET; behavior varies. Prefer 307 for clear method preservation.

Used after non-GET actions to redirect to a resource via GET (e.g., POST/redirect/GET pattern).

Conditional request success. No body returned.
CDN: Saves bandwidth; origin must emit stable validators.

Deprecated for security reasons.

Reserved; not used.

Temporary and preserves method and body. Good for maintenance windows.

Permanent and preserves method. Safer modern alternative to 301 for non-GET methods.

See also: dedicated redirects guide at /http/status-codes/redirects/.