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

DNS Leak Investigation

DNS ANALYSIS

confidential

DNS Leak Detection

Are your DNS queries revealing your browsing history?

December 10, 2025

DNS (Domain Name System) translates website names to IP addresses. When you use a VPN, your DNS queries should go through the VPN tunnel. A DNS leak occurs when queries bypass the VPN, exposing your browsing activity to your ISP.

What is a DNS Leak?

✓ Secure Configuration

Your DNS queries go through your VPN or a privacy-focused DNS provider like Cloudflare (1.1.1.1) or Quad9 (9.9.9.9).

✗ DNS Leak

Your DNS queries go to your ISP's DNS servers, revealing every website you visit even when using a VPN.

Why DNS Privacy Matters

🔍

Browsing History Exposure

Your ISP can see every website you visit through DNS queries, even on HTTPS sites.

📊

Data Collection

ISPs can sell this browsing data to advertisers or share it with government agencies.

🎯

Targeted Advertising

DNS data reveals your interests and can be used to build detailed profiles for ad targeting.

Secure DNS Providers

1.1.1.1

Cloudflare

Privacy-focused

9.9.9.9

Quad9

Malware blocking

45.90.28.0

NextDNS

Customizable

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