VPN leak test
What is a VPN leak?
Sometimes a VPN can fail to protect your conecction even if the VPN does not show any
error, this is called a "leak".
A VPN can leak information about you for many reasons like a
missconfiguration or other existing technology like DNS, WebRTC, etc.
An leak from your VPN can
reveal your real IP address, your real location or your alternate IPv6 address if any.
What is a DNS leak?
DNS leak is a security flaw where your queries are transferred through the default DNS servers of your ISP, this leak can happen for a missconfiguration or if your VPN does not use their own DNS servers to route the traffic. This can cause a reveal of your real IP address or your your real location.
What is a WebRTC leak?
Web Real-Time Communication is an open-source web browser tool that allows make peer-to-peer connections. This tool is a standar in most popular web browsers and sometimes can bypass the encrypted connection tunnel of your VPN leaking your real IP address.
How to check if DNS is leaking?
- Disconnect from your VPN.
- Check your real IP at What's my IP.
- Write down your IP address.
- Connect to your VPN.
- Use the VPN Leak Test tool from above.
- If the tool show one or more servers from your ISP or country, it means your VPN is leaking your DNS.
- If the tool only show servers from your VPN provider, everything is OK.
How to check WebRTC leak?
- Disconnect from your VPN.
- Check your real IP at What's my IP.
- Write down your IP address.
- Connect to your VPN.
- Use the VPN Leak Test tool from above.
- If the tool show your real IP address from the step 2, it means your VPN is leaking your IP.
- If the tool doesn't show your real IP from the step 2, everything is OK.