7 Signs Your VPN Is Leaking Your IP Address (And How to Test at Home)

Your VPN is supposed to be your digital shield, hiding your real IP address and encrypting your traffic. But what if it's silently leaking? A leak means your actual IP is exposed, defeating the entire purpose of using a VPN. In this guide, we'll walk you through 7 telltale signs that your VPN is leaking your IP address, and show you how to test for leaks at home in just a few minutes. And if you're looking for a reliable VPN, remember that our premium VPN service is available for just $1 for 30 days, covering all four of our apps: MD Proxy VPN, Nur Tunnel VPN, Ultra Tunnel VPN, and Marvs Go VPN.

1. Your IP Address Changes Unexpectedly

One of the most obvious signs of an IP leak is that your public IP address changes without you reconnecting to the VPN. If you connect to a VPN server in, say, the United States, your IP should stay the same as long as you're connected. If you refresh a site like 'What's My IP' and notice your IP is different from the VPN server's IP, or it fluctuates, that's a red flag.

Why does this happen? It could be due to a DNS leak, a WebRTC leak, or simply a poorly configured VPN that isn't routing all your traffic through the tunnel. When your IP changes, it means some of your traffic is going outside the VPN, exposing your true location.

To test: Visit an IP-checking site while connected to your VPN. Note the IP. Refresh the page several times. If the IP changes or doesn't match the server location, you likely have a leak.

2. Websites Still Show Your Real Location

If you connect to a VPN server in a different country, but websites like Google or Netflix still show your actual city or region, that's a clear sign of a leak. This often happens because your browser uses geolocation services that bypass the VPN, or because your DNS requests are leaking.

For example, you connect to a UK server but see ads for your local grocery store. That means your IP or DNS is leaking. This not only compromises your privacy but can also lead to geo-restrictions not being lifted.

To test: Go to a site that shows your location (like weather.com or a geo-targeted ad) and see if it reflects your VPN server's location or your real one.

3. Your VPN Connection Drops but Your Internet Stays On

Many VPNs have a 'kill switch' feature that automatically disconnects your internet if the VPN connection drops, preventing any traffic from leaking. If your VPN doesn't have this, or if it's not working, your IP will be exposed the moment the VPN disconnects.

You might not even notice the disconnect immediately. Your internet continues to work, but you're now browsing with your real IP. This is a silent leak that can happen during network switches (like moving from Wi-Fi to mobile data) or when the VPN server becomes unreachable.

To test: Connect to your VPN, then intentionally disable your Wi-Fi and re-enable it. Check your IP. If it changes to your real IP without reconnecting the VPN, your kill switch is not working.

4. DNS Leak: Your ISP Can See Your Browsing History

DNS (Domain Name System) leaks occur when your device sends DNS queries outside the encrypted VPN tunnel. This means your ISP can see which websites you're visiting, even though your traffic is encrypted. This is one of the most common types of leaks.

How can you tell? Some websites might load slowly, or you might see DNS errors. But the most reliable way is to use a DNS leak test tool. These tools check which DNS servers your device is using. If they're not your VPN provider's DNS servers, you have a leak.

To test: Visit a DNS leak test website (like dnsleaktest.com) while connected to your VPN. If the results show your ISP's DNS servers or servers in your real location, you have a DNS leak.

5. WebRTC Leak: Your Real IP Exposed in the Browser

WebRTC is a technology that enables real-time communication in browsers (like video calls). Unfortunately, it can also bypass your VPN and reveal your real IP address. This is called a WebRTC leak.

You might not notice it until you visit a site that uses WebRTC, like a video chat service. Some sites can even extract your IP without you knowing. To check if your browser is leaking via WebRTC, you can use a test page that displays the IP that WebRTC sees.

To test: Go to a WebRTC leak test website (like browserleaks.com/webrtc) and see if your real IP is listed. If it is, you need to disable WebRTC in your browser or use a VPN that blocks it.

6. IPv6 Leak: Your Device Uses a Non-VPN IP

Many VPNs only protect IPv4 traffic, but if your device uses IPv6 (the newer IP protocol), your IPv6 address might not be routed through the VPN. This is an IPv6 leak.

If your VPN doesn't support IPv6, your device might use its real IPv6 address for connections, exposing your identity. This is less common but still a serious issue.

To test: Use an IPv6 leak test tool (like ipv6leak.com) while connected to your VPN. If it shows your real IPv6 address, you have a leak. You can also check if your VPN has IPv6 support in its settings.

7. Your VPN's Own IP Detection Feature Flags a Problem

Some VPN apps have built-in leak detection or a 'check my IP' feature. If your VPN app shows a warning or says that your IP is exposed, that's an obvious sign. But even if it doesn't, you should periodically check your IP on an external site to ensure consistency.

Remember, a VPN is only as good as its ability to hide your real IP. If you're using a free or unreliable VPN, the risk of leaks is higher. That's why we recommend using a premium VPN service that's been tested for leaks. For just $1, you can get 30 days of premium access to all four of our VPN apps: MD Proxy VPN, Nur Tunnel VPN, Ultra Tunnel VPN, and Marvs Go VPN. These apps are designed with strong encryption and leak protection to keep your IP hidden.

To test: Check your IP on a site like whatismyipaddress.com, then compare it to the IP of your VPN server. If they match, you're good. If not, you have a leak.

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