Setting up your domain

First you need to buy a domain through a service like
Go Daddy, Register, or iWantMyName

Then all you have to do is set a CNAME record of * that points to ns1.samx.it

To finish go into site settings and add your domain name into this input

With godaddy you have to set your CNAME of www to point to ns1.samx.it.
Then add a redirect as seen below