Every time you visit a website, invisible scripts may be reporting your visit to advertising networks, analytics platforms and data brokers — all before you have clicked anything. Here is how to find exactly what is tracking you.
Method 1: Use a Tracker Scanner (Fastest)
Our free Tracker & Pixel Scanner is the quickest approach. Enter any URL and it fetches the page, analyses every script against a database of 50+ known trackers and returns a categorised list — advertising pixels, analytics, heatmap tools, social widgets and retargeting scripts. Scanning a major news site typically reveals 15–25 trackers from a single page load.
Method 2: Browser Developer Tools
Open DevTools (F12), click the Network tab and reload the page. Every HTTP request appears including those to tracker domains like googletagmanager.com, connect.facebook.net and static.hotjar.com. Search for "tracking" or specific company names to filter results.
Method 3: Browser Extensions
uBlock Origin shows a count of blocked elements in its icon. Click it to see which domains are blocked on the current page. Ghostery shows a detailed list of trackers detected on each page. Privacy Badger (EFF) learns which trackers follow you across sites and blocks them automatically.
What the Different Tracker Types Mean
Analytics trackers (Google Analytics, Mixpanel) count visitors and measure behaviour — your data goes to the analytics provider, not just the website. Advertising pixels (Facebook Pixel, TikTok) build profiles for targeting you with ads on other sites. Session recording tools (Hotjar, Clarity) record mouse movements and keystrokes in real time. Retargeting networks (Criteo, DoubleClick) track products you viewed to serve ads across other sites.
How to Block Trackers
uBlock Origin is the most effective option — install once and it blocks most trackers silently on every page. Firefox Strict Enhanced Tracking Protection blocks most known trackers without extensions. Brave browser blocks trackers, fingerprinting and ad pixels by default on every site. DNS-level blocking with NextDNS or Pi-hole blocks tracker domains for every app on your device including mobile apps.
Check Any Website Now
Use our free Tracker Scanner to see what is running on any site in seconds. For a picture of how trackable your own browser is, check our Browser Privacy Score and Browser Fingerprint Checker.
