Say, you want to change your website's domain from example.boomla.net
to example.com
. It is a 2-step process: first clone your website on the new domain, then remove the old website.
Steps
Go to the Templates page and find the link at the bottom: Clone Boomla website by its domain. (Hit Ctrl+F and use your browser's search if you can't find it, it's there just de-emphasized.)
Enter the website's domain that you want to clone, in our case example.boomla.net
.
On the next page, enter the new website domain you want to use, in our case example.com
.
You may want to point your domain to the Boomla infrastructure if you haven't already.
Once your new site works, delete the old website example.boomla.net
.