are being tracked. For example, the arrow in the status bar in iOS and iPadOS shows when Location Services is receiving location requests from apps asking f...

https://www.apple.com/jp/privacy/docs/Location_Services_White_Paper_Nov_2019.pdf

or unique identifiers to web requests. On other browsers, these headers can include things like location, sign-in status, account information, features enab...

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

bar that allows the user to sign in quickly and easily just as if they were in a native app. When using other browsers or signing in on a non-Apple platform...

https://www.apple.com/jp/privacy/docs/Sign_in_with_Apple_White_Paper_Nov_2019.pdf