Allow an edge server to use an expired DNS record when forwarding a request to your origin. The type A DNS record refreshes after content is served to the end user, so there is no wait for the DNS resolution. Avoid this behavior if you want to be able to disable a server immediately after its DNS record expires.


Allows edge servers to refresh an expired DNS record after serving content.

timeoutstring (duration)

Set the maximum allowed time an expired DNS record may be active.