field Registered
Verified 2026-09-18 · registry updated
2026-08-28CDN-Cache-Control
Provides cache directives targeted at content delivery networks.
Use CDN-Cache-Control to separate CDN policy from browser Cache-Control, and document precedence when multiple cache layers interpret both.
httpheadercachecdn
Reference (http)
CDN-Cache-Control: public, max-age=600
Use CDN-Cache-Control to separate CDN policy from browser Cache-Control, and document precedence when multiple cache layers interpret both.
Common mistakes
- Assuming browsers will honor a CDN-specific field.
IANA registry: http-fields/field-names · structured type: Dictionary
Registry reference: RFC 9213: Targeted HTTP Cache Control