

It’s a different domain from the domain of the website you’re in. These are cookies that are created by domains that are not the websites that you’re visiting. They can then know how to accommodate you or which ads to show you.

It also lets them know if you’re a new user who is logging into the website. This lets them know who you are when you revisit the website. They do this for a lot of reasons but all of them focus on identifying you based on your computer and your browsing habits. This is done not only by websites but also by third parties. While you’re browsing, the website you visit collects data about you and your device. This is a specific tracking process that happens in browsers.
