I know it impacts advertisers ability to target, but would love a clearer explanation of how it works and the impact.
In: Technology
Everytime you visit a website, it drops a cookie to facilitate your online experience on the website. This is allowed and is called first party cookie mechanism.
Sometimes a website may access cookies which were dropped by some other website e.g twitter may access cookies dropped by scoopwhoop.com to track your online activity ( after getting in bed with scoopwhoop.com ).
That is why when you go to twitter you see Ads related to your scoopwhoop browsing history. Cookies used in this case are called third party cookies, which Apple disables by default. This mean you cannot be tracked across different domains or websites.
Source : I write code to serve Ads to people. 🙂
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