Browser fingerprint test

What is my browser fingerprint? It is the combination of canvas, WebGL, audio, fonts, screen, language, and time zone, not one magic number and not a uniqueness percentage. The digest stays in this tab.

Runs in the browser
Digest is not uploaded
No uniqueness percentage
No account

Browser fingerprint test?

The digest stays in this tab. Nothing is read until you start the scan. This page load does not draw a canvas, open WebRTC, or ask the server for an address. It does not collect WebRTC or the site-seen IP.

RFC 8828: WebRTC IP Address Handling Requirements

Last updated 2026-10-12

Scan browser

Nothing is read until you start the scan. This page load does not draw a canvas, open WebRTC, or ask the server for an address.

What it tests

Canvas pixels, WebGL vendor and renderer when exposed, an offline audio hash, a short font-width probe, screen size, pixel ratio, time zone, languages, platform, CPU threads, and deviceMemory if the browser provides it.

It does not collect WebRTC or the site-seen IP. Those are on the WebRTC and privacy-check pages.

Why it matters

Cookie banners do not cover this. The signals are readable from script as soon as the page is allowed to run it.

Changing IP leaves the combination in place if the device and browser stay the same.

How the test works

You press Scan. The probes run with timeouts. The digest is SHA-256 of a canonical list of those signals.

IP addresses are excluded from that list on purpose.

What the result means

A stable canvas plus a specific GPU string is more identifying than language alone. The page says which rows are exposed, limited, blocked, or unavailable.

Fingerprinting risk here is about stability and combination. It is not proof that this digest identifies only you.

How to reduce exposure

Firefox, Safari, Brave, and Tor Browser reduce some of these surfaces in different ways. Compare a normal window with a private window or another browser using the before/after control.

Incognito mode mostly drops site storage. It does not reset the GPU.

Questions

Is this the same as an IP leak test?

No. Fingerprints describe the browser and device. An address describes the network.

Do you store the hash?

No. Analytics records that a scan finished, not the digest, renderer, or any other value.