with IP addresses running out developers created a method to use multiple SSL certificates on 1 IP address, the only thing stopping this was browser support. Browser support for this is now wide spread.

Overview

All of our hosting services support the Server Name Indication (SNI) extension to the Transport Layer Security protocol. This makes it possible for Apache to use authentic SSL certificates for sites hosted on shared IP addresses. SNI helps to efficiently use IPv4 resources and provides the following benefits:

• You can run any number of SSL sites with independent certificates on a single IPv4 address.
• You can install independent SSL certificates on each of your sites. Now, there is no need to create another subscription. Each subscription can install an SSL certificate even if there is only one shared IP address on the whole server.