iOS 17, along with iPadOS 17 and macOS Sonoma, is adding a new anti-tracking system to the Safari browser to stop users from getting tracked through hyperlinks.
As briefly covered during Apple's WWDC 2023 keynote, URL tracking tags will now be automatically removed when browsing in a private Safari tab, or when using Mail or Messages. These tags automatically get appended to the end of a URL, in a similar way to how a browser cookie works, in order to identify the source of traffic to a particular webpage.
