I Logged My Browser for 7 Days. Here's What It Leaked

If you’ve ever felt like the internet knows too much about you, you’re not wrong. I always assumed private mode, ad blockers, and cookie settings were enough. But after tracking my own browser activity for seven days, I discovered a different story. This isn’t a story about paranoia. It’s about proof. In this post, I’ll break down what I saw, what surprised me, and what small steps actually helped reduce invisible tracking. Table of contents Why I started watching my browser in the first place How I tracked everything my browser did Unexpected spike on Day 4 and what triggered it What leaked even with cookies blocked What actually helped—and what was just noise Who needs to care and how to begin Why I started watching my browser in the first place I noticed something odd: the ads felt too specific—even after I cleared cookies. I’d visit a site once, and for days afterward I’d see eerily related content. This happened even on a d...