HTTP Cache Control Builder

Build Cache-Control headers visually: max-age, no-cache, no-store, public/private, must-revalidate. Generate header string.

public

Response can be stored by any cache (CDN, proxy, browser)

private

Response can only be stored by browser cache (not CDN/proxy)

no-store

Do not store response at all (most restrictive)

no-cache

Must revalidate with server before using cached copy

max-age (seconds)

= 1 hour

s-maxage (shared cache, seconds)

stale-while-revalidate (seconds)

stale-if-error (seconds)

must-revalidate

Must revalidate after max-age expires (no stale)

proxy-revalidate

Like must-revalidate but only for shared caches

immutable

Response will not change during max-age (no conditional reqs)

no-transform

Intermediaries must not modify response body

Generated Cache-Control Header

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