This is a very interesting tool to preview your site before it goes live.
I have been using it migrating sites from one hosting to another.
Replicating the site from the old the hosting to the new hosting before changing the DNS settings. Usually the A record.
You need to enter:
- New server IP address
- Website name.
You will get a URL.
When you preview the site some things might not display correctly, such as images, since they are cached.