Fingerprint Lab
Collect and analyze your browser fingerprint. We measure Canvas, WebGL, Audio, Fonts, Screen, and Math signals, then hash them into a composite identifier. Collected hashes are submitted to our server to compare individual signal frequencies with previous site observations.
What Is Browser Fingerprinting?
Browser fingerprinting is a tracking technique that collects dozens of signals from your browser - canvas rendering, WebGL capabilities, installed fonts, audio processing, screen resolution, and more - to create an identifier based on those signals. Browsers can share signals, and values can change. Deleting cookies does not reset the underlying browser configuration.
How Does This Test Work?
The lab collects signals in your browser, hashes them and submits the hashes to our server. Individual signal frequencies are compared with previous site observations. The blending score is a weighted summary of those frequencies, not a count of matching complete fingerprints or a measure of uniqueness across the whole internet.
How to Reduce Your Fingerprint
- Use Tor Browser, which standardises most fingerprint signals.
- Enable anti-fingerprinting features in Firefox (privacy.resistFingerprinting).
- Limit browser extensions - each one adds to your unique profile.
- Disable WebGL and Canvas access when not needed.
Learn more: Privacy Browser Settings.
Related Tools & Guides
- HTTP Headers Inspector - your headers are also part of your fingerprint surface.
- WebRTC Leak Test - another common source of identity leaks alongside fingerprinting.
- IP Lookup - check what IP address is visible to trackers.
- Complete Guide to Online Anonymity - strategies for reducing your digital footprint.
Frequently Asked Questions
Is browser fingerprinting legal?
In most jurisdictions, browser fingerprinting is legal but falls under privacy regulations like GDPR and ePrivacy. Websites should disclose fingerprinting in their privacy policy and, in some regions, require user consent.
Can a VPN prevent fingerprinting?
A VPN hides your IP address but does not change your browser fingerprint. Fingerprinting relies on browser-level signals (canvas, fonts, screen size) that a VPN cannot mask. You need browser-level protections alongside a VPN.
What is a good blending score?
A higher score means the individual signals are more common in this site’s observation sample, using the test’s weights. It does not measure how many people share your complete fingerprint or establish protection from tracking. Results depend on the available sample and signals.