Testing…
- IP address
- DNS
- WebRTC
Your IP address…
DNS servers
Testing…
WebRTC addresses
Testing…
VPN connection test
Is your VPN really working? Check your IP address, your DNS servers and WebRTC in one tap.
The test looks at three things. First it reads the IP address and country that sites see. Then it asks your browser to resolve a few random names and records which DNS server those lookups come from. Finally it checks which addresses your browser reveals through WebRTC.
With the VPN on, all three should point to the VPN server. If your real address or your internet provider's DNS server shows up, part of your traffic is leaving outside the VPN.
Frequently asked questions
Should I run it with the VPN off or on?
Both. First see your real address and your provider's DNS with the VPN off, then turn the VPN on and test again. With it on, none of those values should appear.
The test found a leak. What now?
On Windows use Colitu in TUN mode: it routes all traffic and DNS lookups through the tunnel. If “Secure DNS” in your browser uses its own provider, turn it off or set it to automatic.
Does the test store my data?
No. The DNS test makes up a random ID; which DNS servers asked about it is kept in memory for ten minutes and then deleted. It is never linked to your account.
Hide your real address
With Colitu, sites see our server's address instead of your real IP. 10 GB free every month. Download the app →
The tools do not store your results. The DNS test keeps a random ID in memory for ten minutes; the other tools run only in your browser.