What is the difference between Domain Names Hosted and Number of sites?

Pre-sales questions
Each website can have more than 1 domain name pointed to it. The most basic example would be abc.com, abc.net, abc.org all return the same website.

So for example, our Basic Plan only allows 1 website.  But this 1 website can contain more than 1 domain name.  It can be a abc.com, abc.net abc.org all going to this 1 website.

Can I make different domain name display different contents?

Yes you can do it with scripting, but we suggest you get our Premium Hosting Plan instead since it allows UNLIMITED Websites.