2 docs tagged with "cache"

This chapter organizes the directives of Cache-Control by "who it applies to", "how long it stays fresh", and "what to do after expiry", and derives caching designs from the nature of the resource. It covers the differences between no-cache and no-store, max-age and s-maxage, where stale-while-revalidate and immutable belong, and why Vary is needed.

This chapter covers vertical and horizontal — the two directions — and the steps to externalize state so horizontal is possible. It covers what load balancers distribute by and health checks, offloading reads to caches and writes to queues, and the order in which bottlenecks move.