Every time you browse the web, you leave behind a trail of data—a digital...

https://city-wiki.win/index.php/Why_Do_I_Get_Different_Ads_on_My_Phone_vs._My_Computer%3F

Every time you browse the web, you leave behind a trail of data—a digital footprint—that companies use to build a profile on your habits. It’s how ads follow you across the internet