Apart from primary authentication method, you can enable secondary verification, thanks to a service called Rublon. Using Rublon you can secure your account from unauthorized access from unknown devices, even if you loose your password. Get to know more about Rublon.
You can use Rublon in a chosen way:
To enable additional authentication using Rublon on your Domeny.tv account, go to admin panel -> two-factor authentication. Click on "connect now" button to open a new window with a QR code generated by Rublon. Scan the code using your mobile device or check your e-mail account and the connection between your Domeny.tv account and Rublon will be active. On your device you will also see a popup for you to decide, whether trust the device you current use, so that no Rublon checks are repeated.