Nearby Notifications - Eddystone URL

Good day.
I’m wondering what kind of information can I gather using only this setup?
I mean, I’m using an Estimote beacon all configured, and I’m getting the Nearby notification with an URL, what I have in mind is to point to a site to save date/time of the access and then redirect to another site, but is it possible to gather some other information this way? like phone Id or something alike? I appreciate your help :3