Known Issues
VPNs
We believe DNS should be part of the traffic and should not be enforced (only suggested) by the network, virtual or not. While manually setting DNS overules DHCP-provided DNS, this is not the case on most operating systems in the case of VPN-provided DNS.
This affects all modern operating systems: iOS, macOS, Android and Windows.
If you also believe this, please suggest the expected behavior directly through the support/feedback platform for your operating system: Feedback Assistant for iOS/macOS, Feedback Hub for Windows or Android Issue Tracker for Android.
Workaround
You can set up dns0.eu inside your browser instead of at the system-level. This is only possible on Windows and macOS.