Question 1

What is browser fingerprinting?

Accepted Answer

Browser fingerprinting is a tracking technique that identifies your device by collecting dozens of attributes from your browser — including screen resolution, installed fonts, GPU model, timezone, language settings, and more. These attributes are combined into a unique identifier that works without cookies and persists across private browsing sessions.

Question 2

Can I prevent websites from fingerprinting my browser?

Accepted Answer

Completely preventing fingerprinting is extremely difficult because the attributes collected are needed for normal web functionality. However, you can reduce your fingerprint uniqueness by using the Tor Browser (which standardizes attributes), enabling Firefox's strict tracking protection, or using extensions that randomize fingerprintable values.

Question 3

Is browser fingerprinting legal?

Accepted Answer

In most jurisdictions, browser fingerprinting exists in a legal gray area. Under GDPR, fingerprinting for tracking purposes requires user consent, similar to cookies. However, enforcement is inconsistent and many websites fingerprint without disclosure. Some privacy laws (like CCPA) classify fingerprints as personal information but enforcement remains limited.

Question 4

What's the difference between cookies and browser fingerprinting?

Accepted Answer

Cookies are small files stored in your browser that can be deleted, blocked, or expire. Browser fingerprints are calculated from your device's attributes and can't be "deleted" — they exist as long as your hardware and software configuration remains the same. Fingerprinting works even in incognito mode and across browser sessions.

Question 5

Does using a VPN protect against browser fingerprinting?

Accepted Answer

A VPN only changes your IP address — it doesn't affect your browser fingerprint at all. Your screen resolution, fonts, GPU, and other attributes remain the same whether or not you're connected to a VPN. For complete privacy, you need to address both your IP address (with a VPN) and your fingerprint (with browser hardening or the Tor Browser).

Browser Fingerprint Test — How Unique Is Your Browser?

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