• Cache behavior in which a cache checks with the origin of a resource whether the resource has changed. If it has (HTTP 200 “OK” response), the origin server will also send the updated resource; if it has not (HTTP 304 “Not Modified”), the cache will keep the resource.

1. More about this term (beta): Web search, articles and videos, books
2. Previous term: Retrieval-augmented generation
3. Next term: Reverse DNS
4. Random term: Browsing context