Building a new site and migrating the domain only?

I am about to work with a client which has a really strong google rank (top of first page).
Their current website is hosted somewhere and is full of unnecessary pages…

I was wondering - If I design a completely new website in webflow, and later connect that to their existing domain (Different pages, different URLs mostly), will their google rank be kept?
If it’s gonna take a hit for a few days then come back on top I am not worried, I am worried about them having to start fresh.

Thank you for your valuable time!

The one of the homepage, yes.

For all the other pages you’ll use 301 redirects and be just fine :slight_smile:

Thank you very much!
Quite excited to try it and hopefully it’ll go smoothly :wink:

You had the good reflex to ask, already. Should be fine afterwards. :slight_smile: