Important Note: HostGator does not support the use of Sitebuilder for addon and subdomains, but it is possible.
If you want to use Sitebuilder for addon or subdomains, you must enter the correct FTP settings in the Admin Panel.
How to Create a second Site
- Login to your Sitebuilder account and look at the top for the Admin Panel icon. Click the icon. [screen shot]
- In the left menu, click "Sites". Then click the "Add New Site" icon. [screen shot]
- Put whatever you want for the site name. Then click the Publishing Settings tab. [screen shot]
- Under "Host", enter your primary domain name or your server's IP address. Under "Login", type your cPanel user name. Under "Password", paste your cPanel password. Under "Working directory", add the folder name of your Addon Domain's Document Root. Under "Web site URL", add the domain name to the new subdomain or addon domain name (may require www). [screen shot]
- Click the Verify Location button to test the settings, and click OK when done.
You can now click the pencil icon to go back to the builder. [screen shot]
How to Update your existing Site
- Login to your Sitebuilder account and look at the top for the Admin Panel icon. Click the icon. [screen shot]
- In the left menu, click "Sites". Then look in the center for your site name. Click that name. [screen shot]
- Don't change anything, yet. Click the Publishing Settings tab. [screen shot]
- Now, you should only need to change two settings. Under "Working directory", add the folder name of your Addon Domain's Document Root. Under "Web site URL", change the domain name to the new subdomain or addon domain name (may require www). Click OK. [screen shot]
You are done. You can now click the pencil icon to go back to the builder. [screen shot]



I followed the steps above to have sitebuilder for addons and I received the followed result after step 4:
message displayed: The site cannot be published to the specified location.
Cannot publish to the specified host via FTP. Authorization failed.
Please advise.
Thank you.