Tools / DNS leak
DNS leak test
Hit the button below to trigger 8 lookups to subdomains under a research-only domain we operate. We then read the source IPs that hit our authoritative server and tell you which resolver is actually doing your lookups.
coming soon — Y2 work
This page is a placeholder while we deploy the authoritative side. The leak-test technique itself is straightforward and we will ship it in Y2 alongside the regional deploy.
In the meantime, for the related WebRTC IP leak bug — which exposes your real IP even when DNS is tunnelled — read our sister-site walkthrough: