You need to create the domain in hostgator, which sets up all database. It’s easy to do in the Hostgator cPanel.
Domains > Addon Domains > enter your URL in the ‘New Domain Field’, such as yourdomain.com and press tab.
Leave Subdomain blank.
Add “public_html/” in front of your domain in the Document Root/ field.
Press Add Domain. Done.
Link: https://gator820.hostgator.com:XXXX/ < will be specific once you have an account
Cost: Included in hosting
Time: 2 minutes