dns_async_refresh

Property Manager name: DNS Asynchronous Refresh
Behavior version: The v2024-10-21 rule format supports the dns_async_refresh behavior v1.1.
Rule format status: GA, stable
Access: Read/Write
Allowed in includes: Yes

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.

Option Type Description Requires

Option	Type	Description	Requires
`enabled`	boolean	Allows edge servers to refresh an expired DNS record after serving content.		{"displayType":"boolean","tag":"input","type":"checkbox"}
`timeout`	string (duration)	Set the maximum allowed time an expired DNS record may be active.		{"displayType":"string","tag":"input","type":"text"} {"if":{"attribute":"enabled","op":"eq","value":true}}

enabled

boolean

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

{"displayType":"boolean","tag":"input","type":"checkbox"}

timeout

string (duration)

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

{"displayType":"string","tag":"input","type":"text"}

{"if":{"attribute":"enabled","op":"eq","value":true}}