Cookie & Tracker Guide

What websites remember about you, who else is watching — and how to clean it up, browser by browser.

👤 Your account

🍪 Cookies & trackers, in plain language

A cookie is a small note a website asks your browser to keep. Some notes help you (staying logged in). Others follow you around the web building an advertising profile.

🏠 First-party cookiesSet by the site you are visiting. Used for logins, baskets, preferences. Mostly necessary and mostly harmless.
🕵️ Third-party cookiesSet by embedded outsiders — ad networks, analytics, social buttons — on sites they don't own. This is the main tracking mechanism: the same network sees you on thousands of sites.
⏱ Session vs persistentSession cookies vanish when you close the browser. Persistent ones survive for months or years — that's how 'recently viewed' follows you.
👆 FingerprintingWhen cookies are blocked, trackers combine your screen size, fonts, timezone and hardware into a near-unique ID. Blocking cookies helps; it does not make you invisible.

Build a tracker profile: what can they learn about you?

Toggle the signals a typical ad network collects, and watch the profile it assembles — all without ever knowing your name.

The profile so far: Nothing selected yet — toggle the signals above.

🧹 Browser walkthroughs: block third-party cookies

Pick your browser for the exact steps. Then add each job to your cleanup task list below and tick it off.

🗂 My Tracker-Cleanup Tasks

Your personal cleanup list: one task per browser or site, with progress you can watch fill up. Records are saved under your local account (or guest space) on this device — create, view, edit and delete them any time.

More free tools by Dinal Studios