allowsPersistentDNS

Declaration

var allowsPersistentDNS: Bool { get set }

Discussion

Allows storing and usage of DNS answers, potentially beyond TTL expiry, in a persistent per-process cache. This should only be set for hostnames whose resolutions are not expected to change across networks.

YES, if the DNS lookup for this request is allowed to use a persistent per-process cache, NO otherwise. Defaults to NO.