Every time you visit a website, you leave behind a trail of data—a digital...

https://www.morning-times.com/article_d7d0946a-6b1c-4ec9-8dd2-46f5ecbcd932.html

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