Anyone else notice this weird site tracking your info?

[katesheldon]

Hey everyone, I was looking up an old friend online the other day and stumbled onto this website called "Who's Online." It supposedly shows you who is visiting your profile or site in real-time.

I got a bit curious and then concerned. Has anyone else come across this or similar services? I'm trying to understand how a site like this even works and what data it's actually collecting. Is this a common tool for website owners, or is it more of a privacy risk? I had a hard time finding clear answers.

Here's a link to the site I found: Who's Online

Would love to hear from anyone who understands the tech behind this or has thoughts on the privacy implications.