Free Security Tool

DNS Leak Test

Check if your VPN is leaking DNS requests. A DNS leak exposes which websites you visit to your ISP, even when using a VPN.

Running DNS leak test...

Checking for DNS leaks across multiple servers

What Is a DNS Leak?

When you type a website address like "google.com", your device needs to find the IP address of that website. This lookup is done through DNS (Domain Name System) servers. Normally, these requests go to your ISP's DNS servers.

A DNS leak occurs when your DNS requests bypass your VPN tunnel and go directly to your ISP's servers. This means your ISP can see every website you visit, even though your other traffic is encrypted through the VPN.

Aultra VPN prevents DNS leaks by routing all DNS requests through our secure, no-log DNS servers. Your ISP only sees encrypted traffic to our VPN servers — nothing else.

How to Fix a DNS Leak

Follow these steps to ensure your DNS requests stay private:

1
Use a Reliable VPN
Not all VPNs protect against DNS leaks. Aultra VPN includes built-in DNS leak protection on all connections.
2
Enable Kill Switch
A kill switch blocks all traffic if the VPN disconnects, preventing DNS leaks during reconnection.
3
Test Regularly
Run this DNS leak test periodically to ensure your VPN is working correctly and protecting your privacy.

Why DNS Leaks Matter

Even a small DNS leak can compromise your entire VPN protection:

ISP Logging

Your internet provider logs every DNS request. They know every website you visit, building a complete profile of your browsing habits.

Government Surveillance

In many countries, ISPs are required to share DNS logs with government agencies upon request. Your browsing history could be exposed.

Targeted Advertising

ISPs can sell your browsing data to advertisers who then target you with personalized ads based on your online activity.

Network Censorship

Some networks use DNS to block access to certain websites. A DNS leak means you're subject to these restrictions despite using a VPN.

More Security Tools

Run these additional tests to ensure complete protection.

What Is My IP?Check your public IP address and see if it's being hidden by your VPN.WebRTC Leak TestTest if your browser is revealing your real IP through WebRTC.Password GeneratorGenerate strong, random passwords for all your accounts.

Learn More About DNS Security

DNS Leaks ExplainedWhat DNS leaks are, how they happen, and how to prevent them.Best VPN for PrivacyWhat privacy features actually matter when choosing a VPN.Cybersecurity HubGuides, tools, and resources to stay safe online.

Stop DNS leaks for good

Aultra VPN includes automatic DNS leak protection on every connection. Your ISP will never see which sites you visit.