SSL is the standard security technology for establishing an encrypted link between a web server and a browser. This link ensures that all data passed between the web server and browsers remain private.
Historically SSL have been used for the payment processing pages on the website as no credit card data should be entered via a non SSL protected page
All Gateway Sites use hosted payment pages so no entry of credit card data takes place on our servers - this means the Payment Service Provider handles the SSL Certificate and associated PCI Compliance
This means as standard Gateway Sites do not have or need an SSL Certificate - they can have one added as an optional extra
There is a general trend on the Internet for all websites to have all pages under SSL - this is being driven by Google so is likely to become the norm over the next few years - the only downside to this trend is the additional cost of purchasing and adding SSL certificates
Google does not currently require your site to have an SSL certificate to use services like Adwords (PPC) or to index your website for organic search (SEO) but has recently introduced this as a requirement for its Google Adsense for Shopping Service
So if you want to use this paid service to promote products on your Gateway Site you will need an SSL applying to the whole website - this also requires your website to have a static IP address for the SSL to be applied to and takes 48 hours to implement - this service costs an additional £199 per year