HTTP headers
CDN-Cache-Control HTTP Header Meaning
CDN-Cache-Control gives cache directives specifically to CDN shared caches.
Meaning
The origin can send CDN-focused cache instructions without changing browser cache behavior.
Where it appears
Some CDNs read it on responses to separate edge cache policy from browser Cache-Control.
What to check
Check CDN support before relying on it, and keep Cache-Control correct for clients that ignore this header.
Example
CDN-Cache-Control: max-age=86400Common values and directives
max-agemax-age=<seconds>CDN caches can reuse the response for this many seconds.s-maxages-maxage=<seconds>Shared CDN caches use this value instead of max-age.no-store- The CDN should not store the response.
private- The response is intended for a private cache, not a shared CDN cache.
public- The response is explicitly allowed in shared CDN caches.