IPOK

DNS Leak Test

When using a proxy / VPN, if DNS queries don't go through the tunnel they reveal the DNS servers you actually use (often your local ISP's), leaking your real location — that's a DNS leak, one of the most overlooked privacy gaps.

This tool triggers a lookup inside your browser and lists the DNS servers that actually responded, with their location / ASN. If a resolver's region differs from your proxy exit, you may have a DNS leak.

Your public IP

FAQ

Why are DNS leaks bad?

Even with your IP hidden by a proxy, a DNS leak can expose your real ISP and rough location, breaking anonymity and enabling region detection.

How do I fix a leak?

Enable 'DNS over the tunnel / DNS leak protection' in your proxy/VPN client, or set your system DNS to a trusted resolver (e.g. 1.1.1.1), then re-test.

Related checks

Is ping0.cc safe? We tested it — it collects your real IP
IP Purity Check
Native IP Check
IP Risk Score
ChatGPT IP Check
WebRTC Leak Test