Confusion over a private test sever

A couple of questions.
How do I identify which domain the license is registered on.
And how do I make a private dev server- re notes.

I’m trying to get working efficiently for the client while its being developed.
I think I already registered for the live site
It’s public.

Thanks O

If you go to and login with the details you got when you purchased the licence, it will tell you what domain the key has been registered against.

Thanks jimbo