One of the good things about Mixpanel is that is user-centric. Yes, you can track anonymous visits, but if you have a way to identify a user in your site (or app), you can track her actions. It requires an extra set up step, where you
Once you’ve started to track sign-ups and users activity, the Users module will be unlocked, and you can begin analyzing each user actions.
This step is crucial because it unblocks other features in Mixpanel, like
For example, you can send a one-time email to people who logged from the Argentina with a specific promotion.