⚡ Developer · Client-side · No data sent to server
Cache-Control Header Generator
Build a Cache-Control header value directive by directive, with a plain-language summary of what it tells browsers and CDNs to do. Copy it as a raw value or as Apache and Nginx config.
Who can cache it
Freshness
Revalidation & flags
Copied
Tip. Use a long max-age with
immutable for versioned assets, and no-store for pages with private or per-user data. The header is assembled in your browser; nothing is sent anywhere.