So first of all, unless you have a login on your site, you can't hungary whatsapp number data actually track users. For example, the site you're watching this video on right now, Moz, they have a login. If you log in and come back, they can track you. If you've never logged in, if you're on Safari and you come back eight days later, they probably don't know who you are. But if you're logged in, we can track you across multiple sessions.

Most websites don't have logins. Many B2B websites don't have logins. SaaS products do, and that's great for them, but most of us don't have the luxury of logging in. That means we don't actually know who the users are for the reasons I just talked about. But there are other reasons, like people use different computers, right? Like people come back a few years after they first came back. We don't really know how many users you have.