Browser fingerprinting is a tracking technique that identifies users based on their browser and device characteristics, without using cookies. It's increasingly used as users block traditional tracking methods.
How Does Fingerprinting Work?
Every browser reveals information about itself: screen resolution, installed fonts, plugins, timezone, language settings, and more. Individually, these seem harmless. Combined, they create a unique "fingerprint."
What Data is Collected?
- Browser type, version, and user agent string
- Screen resolution and color depth
- Installed fonts and browser plugins
- Timezone and language preferences
- Canvas and WebGL rendering characteristics
- Audio context fingerprint
- Hardware information (CPU cores, memory)
Why is This a Privacy Concern?
Unlike cookies, fingerprints can't be easily deleted. They work across incognito mode, different browsers, and even after clearing all browser data. Websites can track you persistently without your knowledge or consent.
How Unique is Your Fingerprint?
Studies show that browser fingerprints are unique for 80-90% of users. The more extensions, fonts, and customizations you have, the more unique your fingerprint becomes.
Use our Browser Fingerprint tool to see exactly what information your browser reveals and how unique you are.
How to Reduce Fingerprinting
- Use the Tor Browser (designed to look identical for all users)
- Use Firefox with Enhanced Tracking Protection
- Install anti-fingerprinting extensions like CanvasBlocker
- Use a mainstream browser with default settings (paradoxically more private)
- Disable JavaScript (breaks most websites)
- Use a privacy-focused browser like Brave
Ironically, using many privacy extensions can make your fingerprint MORE unique. Balance is key.