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7 Ways Websites Track You Online

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You Are Being Watched. Here Is How.

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Every website you visit is collecting data about you. Some of it is obvious. Most of it is not. Here are seven tracking techniques used across the web right now, and what you can do to fight back.

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1. Cookies

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The classic. First-party cookies remember your login and cart. Third-party cookies follow you from site to site, building a profile of your interests, purchases, and browsing patterns. Browsers are phasing out third-party cookies, but the tracking industry has already moved to other methods.

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2. Browser Fingerprinting

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Your browser leaks a massive amount of unique data: screen resolution, installed fonts, GPU model, timezone, language settings, and dozens more attributes. Combined, these create a fingerprint that is unique to you, even without cookies. Check yours with our Browser Fingerprint Test. You will be surprised how identifiable you are.

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3. IP Address Tracking

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Your IP address reveals your approximate location, ISP, and connection type. Websites log it automatically with every request. Combined with timestamps, your IP creates a trail of every site you visit. See exactly what yours reveals at our IP Checker.

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4. Tracking Pixels

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Invisible 1x1 pixel images embedded in emails and web pages. When your browser loads the pixel, the server logs your IP, device info, and the exact time you viewed the content. You will never see them, but they see you.

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5. WebRTC Leaks

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WebRTC is built into your browser for video calls and file sharing. It can reveal your real IP address even when you are using a VPN or proxy. Run our WebRTC Leak Test to see if your browser is exposing you right now.

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6. DNS Logging

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Every domain you visit starts with a DNS lookup. Your ISP (or whoever runs your DNS) can see every site you access. Even with HTTPS, the domain names are visible. Check if your DNS is leaking with our DNS Leak Test.

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7. Supercookies and ETags

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When you clear cookies, trackers use supercookies stored in Flash, localStorage, and HTTP ETags. These are harder to delete and survive most cookie cleaners. Some ISPs even inject supercookies into your traffic at the network level.

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Fighting Back

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No single tool stops all tracking. Use a combination: a reputable VPN, a privacy-focused browser, cookie auto-delete extensions, and disable WebRTC. Regularly audit your exposure with our tools.

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Last updated: April 2026