VisibleIP
DNS PRIVACY

DNS Leak Test

A trustworthy DNS leak test needs a dedicated DNS measurement backend. VisibleIP does not fake resolver results.

DNS resolver measurement is on our roadmap. Until it is live, this page explains exactly what to check rather than displaying invented results.

What is a DNS leak?

A DNS leak can occur when DNS queries go to a resolver outside the privacy path you expected, such as your ISP's resolver while a VPN is connected.

How a proper DNS leak test works

The test gives your browser unique hostnames to resolve. VisibleIP's authoritative DNS server then records which resolver asks for those hostnames. That server-side component is why a credible test cannot be implemented with static HTML alone.

IP LookupLook up an IP's approximate network and location.VPN TestCompare your current IP with your expected VPN state.WebRTC Leak TestInspect addresses your browser exposes to WebRTC.IPv6 TestCheck whether this browser can reach the IPv6 internet.Browser InfoSee browser and device signals available to websites.DNS Leak GuideUnderstand DNS leaks and what a real resolver test requires.