DNSSEC, a registrar must submit a Delegation Signer (DS) record either via the Web Administration Tool, or via EPP (according to RFC 5910). For EPP, each re...
https://www.apple.com/jp/legal/intellectual-property/tld/dps/
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