Upstream page before actual page?

Dear all,
I would like to link my own domain and work on it live as well, since I can’t see everything new in the preview.
However, I am worried that the site will be visited by then.
Is there, similar to wordpress, a way to install an upstream page where you have to enter your PW as admin and then only get to the actual page? I know it is not available as a function, maybe there is a workaround?

@Jackson, unfortunately that’s not possible. Can you elaborate why preview doesn’t work?

my preview always shows an unlogged user, but I have to check with as different logged in user’s. Basically that’s the problem.

@Jackson you can also create preview users and then login with those test users… We will though soon retire preview user concept and you will be able to login into preview with the same users.