Hostname Info
mask.apple-dns.net is associated with the iCloud Private Relay application. The hostname points to approximately 1677 IP addresses across 34 countries. The hostname is part of the apple-dns.net domain.
To improve global delivery, this hostname uses DNS-based geolocation. By returning IP addresses specific to your region, the network minimizes round-trip time and provides a localized connection point.
Associated Application
iCloud Private Relay - VPN and Proxy
iCloud Private Relay is used to hide IP addresses and web browsing activity from network providers and websites. The software is available on iCloud Safari products.