Private, browser-local utility
Cache-Control Header Generator
Build a bounded Cache-Control response-header value from explicit caching choices.
Your input and result stay in this browser tab. Nothing is uploaded, fetched, logged, or stored.
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Result
Bounded cache policy
Supports max-age, s-maxage, no-cache, no-store, public, private, must-revalidate, proxy-revalidate, immutable, stale-while-revalidate, and stale-if-error. Numeric values use digits only from 0 through 315,360,000 seconds. Contradictory public/private and no-store/freshness combinations are rejected. Generated syntax must be tested in the real application and CDN; this page changes no server setting.