dnsPrefresh

Property Manager name: DNS Prefresh
Behavior version: The v2025-09-09 rule format supports the dnsPrefresh behavior v1.1.
Rule format status: Deprecated, outdated rule format
Access: Read-only
Allowed in includes: Yes

Allows edge servers to refresh your origin's DNS record independently from end-user requests. The type A DNS record refreshes before the origin's DNS record expires.

Option Type Description Requires

Option	Type	Description
`enabled`	boolean	Allows edge servers to refresh DNS records before they expire.	{"displayType":"boolean","tag":"input","type":"checkbox"}
`delay`	string (duration)	Specifies the amount of time following a DNS record's expiration to asynchronously prefresh it.	{"displayType":"string","tag":"input","type":"text"} {"if":{"attribute":"enabled","op":"eq","value":true}}
`timeout`	string (duration)	Specifies the amount of time to prefresh a DNS entry if there have been no requests to the domain name.	{"displayType":"string","tag":"input","type":"text"} {"if":{"attribute":"enabled","op":"eq","value":true}}

enabled

boolean

Allows edge servers to refresh DNS records before they expire.

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

delay

string (duration)

Specifies the amount of time following a DNS record's expiration to asynchronously prefresh it.

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

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

timeout

string (duration)

Specifies the amount of time to prefresh a DNS entry if there have been no requests to the domain name.

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

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