You have been on this page for 60 seconds. You scrolled 77% of the way down. You never left this tab. We would have noticed if you had. Your cursor moved 69 times. You paused once for 10 seconds — longer than anywhere else. We were not counting. We were always counting.

sinceyouarrived.world is an eerie, Black-Mirror-esque…zine, I guess? based on data. The latest issue, Taken, is about what the sites you visit know about you.

I have a pretty good understanding of what websites know about me, and I was still taken aback by this:

Battery: 52% · not charging
Your battery is at 52%. It is not charging. In 2015, researchers demonstrated that battery level — combined with discharge time — was unique enough to track users across websites for up to thirty minutes. Your exact percentage, right now, is a fingerprint. Firefox removed this API in 2016. Your browser still exposes it.