#1) It allows for SSL certificate support for older browsers that don't support SNI
See below for the list of browsers which support SNI and don't require a dedicated IP address for SSL to function:
- Internet Explorer 7 and later (apart from on Windows XP).
- Firefox 2
- Opera 8 with TLS 1.1 enabled
- Google Chrome:
- Supported on Windows XP on Chrome 6 and later
- Supported on Vista and later by default
- OS X 10.5.7 in Chrome Version 5.0.342.0 and later
- Safari 2.1 and later (requires OS X 10.5.6 and later or Windows Vista and later).
- Note: No versions of Internet Explorer on Windows XP support SNI
- Mobile Safari for iOS 4.0
- Android 3.0 (Honeycomb) and later
- Windows Phone 7
#2) It allows you to send emails from your own private IP address
As your not sharing your IP address with anyone else, no other users on the same server as you can directly effect your email IP reputation. This allows you to have a more reliable email service, as you are the only person solely resposible for the delivery and inbox rates of your emails sent.
We can also setup your own custom reverse DNS (rDNS) for your domain name, to ensure your dedicated IP address resolves back to you.
#3) It allows for more privacy over your hosting
Advanced web visitors or malicious users can't directly scan to see who else's website is on the same server as you, since your on your own unique IP address, and your not sharing the same IP address as other users.
Please note you can only use a dedicated IP address on one website, you would need to purchase a seperate IP address for each website you need one on.