Privacy diagnostics

VPN DNS Leak Test

After connecting to a VPN or proxy, test public IP, DNS leaks, WebRTC exposure, browser time zone, language, and fingerprint signals with NetScope.

Updated: 2026-05-11

Open NetScope

Direct Answer

A connected VPN client does not prove privacy. Check public IP, DNS resolver, WebRTC exposure, and browser fingerprint consistency after every major client or node change.

Public IP

Confirm that websites see the proxy or VPN IP, not your original network.

DNS resolver

DNS servers should not obviously reveal your original ISP or region.

WebRTC and fingerprint

Browser-level signals can still expose local network or inconsistent environment details.

Steps

Connect to your VPN, proxy, or free node.
Open NetScope and run the browser-side checks.
Compare public IP, DNS, WebRTC, time zone, and language signals.
Change DNS or routing settings if the signals conflict.

Checklist

Public IP changed from the original network.
DNS resolver is consistent with the route.
WebRTC does not reveal unwanted local or real network signals.
Browser time zone and language are not obviously inconsistent.

Troubleshooting

DNS still shows the original ISP

Disable browser secure DNS or use the VPN/private DNS setting.

WebRTC exposes local addresses

Change browser WebRTC privacy settings or use a hardened browser profile.

Results change by node

Retest with a stable node or VPN trial before relying on the route.

NetScope Run browser-side privacy checks. Free nodes Test a proxy route first. Clash/V2Ray guide Fix routing and DNS issues. VPN trials Compare more stable options.

FAQ

Does a VPN connection guarantee no leaks?

No. DNS, WebRTC, routing, and browser fingerprint signals can still expose unexpected details.

Is a DNS leak always dangerous?

It depends on the use case, but long-term proxy or VPN use should avoid leaking DNS to the original network.

Can NetScope guarantee anonymity?

No. It is a diagnostic tool that reveals browser-visible signals; it does not promise anonymity or legal compliance.