Signer (DS) records with Afilias on behalf of their registrants. 1.3.3. Registrants Registrants of .Apple domain names are responsible for ensuring that the...

https://www.apple.com/jp/legal/intellectual-property/tld/dps/

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