to provide the Private Relay service. The entire list is published to the major geo-IP industry databases and is posted publicly by Apple at: mask-api.iclou...

https://www.apple.com/jp/privacy/docs/iCloud_Private_Relay_Overview_Dec2021.PDF

a simplified version of the system configuration to trackers so more devices look identical, making it harder to single one out. And unlike some other brows...

https://www.apple.com/jp/safari/docs/Safari_White_Paper_Nov_2019.pdf