Question 1

What is browser fingerprinting?

Accepted Answer

Browser fingerprinting is a tracking technique where websites collect details about your browser and device - such as your GPU model, installed fonts, screen resolution, and language settings - to create a unique identifier. Unlike cookies, fingerprints don't require storage on your device and can't be cleared by deleting browser data.

Question 2

How do websites track you without cookies?

Accepted Answer

Websites track you without cookies using browser fingerprinting. They silently read signals like your canvas rendering output, WebGL GPU information, installed fonts, screen size, audio processing hash, timezone, and user agent string. Combining these signals creates a fingerprint unique enough to identify you across sessions and websites.

Question 3

What is a canvas fingerprint?

Accepted Answer

A canvas fingerprint is created when a website draws invisible shapes or text on an HTML canvas element and reads back the pixel data. Because different GPUs and operating systems render graphics slightly differently, the resulting image hash is unique to your hardware and can identify your browser without using cookies.

Question 4

How can I reduce my browser fingerprint?

Accepted Answer

The most effective approaches are: switch to Brave Browser (which actively randomizes fingerprinting vectors), use Firefox with strict Enhanced Tracking Protection, or use the Tor Browser which makes all users appear identical. Browser extensions like CanvasBlocker can also help. Note that some anti-fingerprinting measures can paradoxically make you more unique.

Question 5

Is this browser fingerprint test free?

Accepted Answer

Yes, completely free with no account required. The tool runs entirely in your browser - no fingerprint data is sent to any server, stored, or logged anywhere. You can re-scan as many times as you want.

Question 6

What does the entropy score mean?

Accepted Answer

Entropy measures how much identifying information each fingerprinting vector contributes, in bits. Higher entropy means more uniqueness. A user agent string might contribute 10.5 bits, meaning it narrows you down to roughly 1 in 1,448 people. Summing all vector entropy gives your total fingerprint entropy - the higher it is, the more uniquely identifiable you are.

How Unique Is
Your Browser?

Frequently Asked Questions

How Unique Is
Your Browser?

How Unique IsYour Browser?

Frequently Asked Questions

How Unique IsYour Browser?

How Unique Is
Your Browser?

How Unique Is
Your Browser?