A web page that tells you what your browser gave away the moment you arrived. No login, no form, no permission. Most pages do this. None of them tell you.
Depending on your location it can actually be geolocated into your specific city block, I geolocated an online friend’s IP just for the hell of it (I already knew where they lived) and it spit back out the city block they lived in as well as a lot of other very identifiable information
Also, if you can ping devices on that network using that IP you can also use that as a way to easily identify users. That’s if they have anything that isn’t firewalled, obviously, but the point stands!
Depending on your location it can actually be geolocated into your specific city block, I geolocated an online friend’s IP just for the hell of it (I already knew where they lived) and it spit back out the city block they lived in as well as a lot of other very identifiable information
Also, if you can ping devices on that network using that IP you can also use that as a way to easily identify users. That’s if they have anything that isn’t firewalled, obviously, but the point stands!