Fingerprinting is a tracking method that identifies a user based on the unique combination of their device, browser, and system characteristics —without cookies.
Think of it as a “digital scent trail.”
your browser gives you away; It leaves behind a digital scent trail
A fingerprint can include:
- screen resolution
- installed fonts
- GPU model
- CPU architecture
- timezone
- language
- canvas rendering quirks
- WebGL output
- audio processing signature
- browser version
- OS version
- touch support
- battery API
- media codecs
- list of enabled features
- IP address
Each of these is not unique alone — but combined, they form a statistically unique profile.
Fingerprinting is powerful because:
- it works even in private/incognito mode
- it persists across sessions
- it bypasses cookie blockers
- it’s invisible to the user
This is why ad‑tech loves it.