This guy visited UberVu.com without providing any personal info or being logged into any service and a day later, he got an email from them:
Recently, I visited the landing & pricing page at UberVu.com. I did not signup for anything, did not leave my email, did not connect with any of their social media properties. One day later, I get an email (see attached image).
I’m sure they triangulated some information but how could they pin point to personally identify me? Is this common & so blatant (or even legal)?
Interesting discussion over at Hacker News that triangulates it down to two tracking services– Trackalyzer and Leadlander: Can websites personally identify visitors? | Hacker News.