How to hidden the whole homepage untill it is ready?

You can use a plugin like this https://www.ads-software.com/plugins/network-privacy/

Thank you, I’ve installed and activated it, but I don’t know, how to use it? I cannot find any instructions. It is urgent to do it as soon is possible with the most simple settings.

?? the instructions are in the homepage of the plugin : )

Thank you.

Thank you.