I had a look at their T&C - Affiliate Terms of Service - HostGator
You will receive a commission for 'active' referrals. Active is defined by clients with a website and domain name pointed to a HostGator server with user uploaded content.
I contacted HostGator to ask what user uploaded content would satisfy their requirements but they refuse to release this information.
I can't spend the time and effort to do all the marketing for this company if I don't know if i will even get paid for sending them a paying customer but the alternative I am considering is Blue Host who pay a maximum of $65 CPA.
A lot of my referrals will be content with a 3 page brochure website to advertise their small business. They won't tell me if this example is enough.
Does anybody have experience with HostGator's affiliate program and what do you think about it?