Stale Content Delivery on Error

This capability requires Rules Engine - Advanced Rules which must be purchased separately. Contact your CDN account manager to activate it.

Category: Caching

Purpose: Determines whether expired cached content will be delivered when an error occurs during either cache revalidation or when retrieving the requested content from a customer origin server.

Enabled Result


Stale content will be served to the requester when an error occurs during a connection to an origin server.

Use the Internal Max-Stale feature to configure the length of time after TTL expiration during which stale content may be delivered.

Each stale response includes a Warning response header.


The origin server's error will be forwarded to the requester.

Default Behavior: Disabled