Run a free DNS Leak Test to check if your DNS requests are exposed. Find out which DNS servers your device is using, and see if your ISP can still track your browsing activity while on a VPN.
This DNS Leak Test was created to help users verify whether their internet privacy tools are actually routing DNS requests the way they expect. Many people use VPNs or privacy-focused networks to mask browsing activity, but DNS requests can sometimes still be handled by an ISP or unintended resolver, potentially exposing which websites are being requested even when the visible IP address appears protected.
A DNS leak does not always mean your entire connection is exposed, but it can reveal important browsing metadata by sending domain lookup requests outside your intended privacy setup. This tool checks which DNS servers are responding to your requests so you can compare them against your expected VPN, ISP, or custom DNS provider configuration.
Privacy and network security depend not only on enabling tools, but also on verifying that they are functioning correctly. This test is designed to provide a lightweight way to inspect DNS routing behavior and help identify whether browser settings, operating system configuration, IPv6 handling, or VPN setup may be affecting your privacy expectations.
Practical Tip: If your DNS results show servers you do not recognize while using a VPN or privacy service, review your VPN’s DNS leak protection settings, browser WebRTC configuration, and device DNS preferences. Secure DNS providers such as Cloudflare (1.1.1.1) or Google Public DNS (8.8.8.8) are commonly used alternatives depending on your privacy and performance goals.
A DNS leak is a vulnerabiliy where your device uses your ISP's DNS servers to send queries even when you are using a VPN to tunnel your internet traffic. When this happens, Even if you use a VPN, your ISP can still see every website you visit compromising your privacy and defeating the purpose of the VPN.
Run a DNS leak test and check the DNS servers found. If your results show your ISP’s DNS instead of your VPN or secure DNS resolver, you are leaking.
Yes. The DNS server you use can log every website request. Even if a site is HTTPS encrypted, DNS leaks expose the domains you visit.
Good VPNs route DNS traffic through private resolvers. However, some devices still leak through WebRTC, IPv6, or misconfigured networks.
Common causes include WebRTC leaks in browsers, system DNS overrides, IPv6 leaks, faulty VPN apps, or manually set DNS on the device.
Use a VPN with DNS leak protection, disable WebRTC in browsers, enable DNS over HTTPS, or switch to a secure DNS provider like Cloudflare or Google.
WebRTC can bypass VPN tunnels and reveal your IP and DNS resolver directly through the browser. This is why browser-based DNS tests are important.