What is fingerprinting?

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.”

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.