ExpressVPN has unveiled a suite of free online security tools that allow consumers to test if their VPN provider is leaking data. Leaks occur if a VPN fails at protecting a device’s DNS queries (despite the fact that the rest of the traffic is safe behind a VPN). This can result in ISPs or other third parties having access to the consumer’s browsing history or app usage, rendering a VPN essentially useless.
Using a VPN helps prevent hackers, ISPs, and others from viewing your personal data, compromising your online accounts, seeing what sites and apps you use, and tracking your activity across the web. However, leaks occur when a VPN application fails to fully secure a user’s traffic, sending some or all of it outside the secure tunnel.
The testing software from ExpressVPN is available free of charge.
If you are using a VPN (and you should be!), you might want to read the article at https://www.expressvpn.com/blog/check-your-vpn-with-expressvpn-leak-testing-tools/ and then test your VPN.
By the way, most of the free VPNs reportedly leak a lot of data. I used the ExpressVPN to test the (paid) VPN I use all the time. Zero leaks!
You can also find a free online VPN leak test service at: https://www.dnsleaktest.com. It is much easier to use than the ExpressVPN testing tools. However, I have no idea if the results are as accurate as the reports from ExpressVPN. Still, I would suggest it is a good “quick test.”