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DNS Leak

Network Privacy

VPN (Virtual Private Network) VPN Kill Switch DNS (Domain Name System) Split Tunneling

Resolver queries escaping intended privacy tunnel.

Definition

DNS leakage occurs when DNS queries are routed outside the protected interface (VPN), exposing domain lookup metadata to on-path parties or the ISP resolver.

In plain English Resolver queries escaping intended privacy tunnel.

Why this matters

Why it matters: DNS metadata can deanonymize traffic patterns and undermine VPN privacy claims.

Example

Example: Split tunneling misroutes resolver traffic to the default gateway.

Apps Using DNS Leak

Examples of apps that implement or relate to this privacy concept

ProtonVPN logo

ProtonVPN

Privacy Score: 89

ProtonVPN offers a privacy-conscious alternative in the vpn space, with a stronger focus on data ...

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