Question: Do you need an SSL certificate on the WordPress site?
Answer: Typically SSL is required.
SSL is required if the order form needs to be sent from Infusionsoft which is running on HTTPS to SubscriptionBoss on WordPress and you want to avoid browser warnings. Therefore you need an SSL certificate if you choose to integrate via Infusionsoft new or legacy order forms or the shopping cart.
If you were only offering PayPal as the payment mechanism placing the order form on WordPress then you would NOT need SSL.
Does this work with hostgator hosting? Does it work with a shared SSL or does it need to be private?
Thanks, Alasdair
If a shared SSL certificate allows you to access your site using the URL https://www.yoursite.com then it would work providing it is a NON self-signed certificate.
Basically the way to know for sure is to put the URL https://www.yoursite.com into a browser and if you get no browser warnings it is all good