DNS Leak Test
Check if your DNS requests are going through your VPN tunnel or leaking to your ISP.
DNS Leak Test
Your IP: 216.73.217.108
Detected DNS servers: 1
| IP Address | Hostname | Provider |
|---|---|---|
| 80.74.128.128 | rns.sui-inter.net | ISP DNS |
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How the DNS Leak Test Works
During the DNS leak test, your browser sends multiple DNS requests to our servers. We analyse which DNS resolvers answer these requests. If requests go through your regular ISP instead of your VPN tunnel, a DNS leak exists. Our test detects both IPv4 and IPv6 leaks and provides recommendations for fixing them.
Frequently Asked Questions about DNS Leak Test
What is a DNS leak?
A DNS leak occurs when DNS requests are sent through your ISP's default DNS server instead of the VPN tunnel, even with an active VPN. This allows your provider to see which websites you visit – even if the rest of the traffic is encrypted.
How can I prevent a DNS leak?
Use a VPN service with built-in DNS leak protection. Alternatively, manually set your DNS servers to trusted providers like Cloudflare (1.1.1.1) or Google (8.8.8.8) and disable IPv6 if your VPN does not support it.
Is a DNS leak dangerous?
A DNS leak is not a security risk in the strict sense, but a privacy issue. Your ISP and potentially third parties can track your browsing behaviour. This is especially problematic in countries with strict internet monitoring.