The resource has not changed since the conditional request; the client should use its cached copy.
Quick facts
When does it occur
The resource has not changed since the conditional request; the client should use its cached copy.
It belongs to the 3xx Redirection class of responses, defined in RFC7232#4.1.
Browse all codes in this class: 3xx Redirection
Common causes
Frequently asked questions
304 belongs to the 3xx Redirection class and is usually cacheable per headers such as Cache-Control (e.g. 200, 301, 304).
3xx Redirection: The resource has not changed since the conditional request; the client should use its cached copy.
Sources & standards
Updated 2026-09-13
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