See — I can tell. I’ve got this nifty gizmo installed here that lets me know who’s out there. I can tell how they found me, what their ISP address is, what “business” is attached to that ISP, how long they spend, what city they live in, what browser they use, how long they spend, what’s in their coffee while they are viewing it.
And so I know. I don’t know WHY, but I know.