Is my browser uniquely identifiable?

Yes, most modern browsers expose enough attributes (canvas, WebGL, fonts, timezone, hardware) to be uniquely identified without cookies. Panopticlick measures that uniqueness as entropy.

Do you store my fingerprint?

Data is only stored if you give consent. You can delete it anytime via the privacy export/delete controls, and IPs are hashed.

What happens during the scan?

We collect hardware, software, and capability signals (canvas, WebGL, audio, fonts, screen, UA) then compute hashes, entropy, and an advertising value simulation.

PanopticlickBrowser Privacy Test

Ad Blocker Analysis

BLOCKER TEST

confidential

Ad Blocker Effectiveness Test

How well does your ad blocker protect you?

December 10, 2025

Not all ad blockers are created equal. Some block ads but allow tracking scripts. Others block trackers but miss fingerprinting attempts. This test measures your actual protection level.

What We Test

Analytics

medium

Google Analytics, Facebook Pixel, Hotjar

Advertising

medium

DoubleClick, AdSense, Criteo

Social

high

Facebook SDK, Twitter Widget, LinkedIn Insight

Fingerprinting

critical

FingerprintJS, Canvas fingerprint scripts

Malware

critical

Crypto miners, known malicious scripts

How It Works

Bait Resources

We attempt to load scripts with names and paths that match real tracking scripts. These are served from our domain.

Detection

We measure which resources load successfully and which are blocked. This reveals what your blocker filters.

Analysis

We identify your blocker if possible and provide category-by-category protection scores.

ℹ️

Note

This test uses "bait" resources that mimic real trackers. No actual tracking occurs. The resources are served from our own domain for testing purposes only.

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