Shared IP
We all know that Domain names were introduced because it is difficult to remember long IP addresses. So every domain name should have an IP address assigned to it.
A shared IP can host many websites on one web server. That is, several websites will share one single IP address.
Dedicated IP
By purchasing and assigning a dedicated IP to a domain, this unique IP address will be used only for that particular website.
SNI (Server Name Indicator)
In the past, a dedicated IP is needed if we want to install an SSL certificate for a website. Server Name Indication is an extension of the TLS protocol and that allows a server to connect multiple SSL certificates on a single IP address.
SNI Supported Browsers:
- Internet Explorer 7 or higher
- Mozilla Firefox 2.0 or higher
- Opera 8.0 or higher
- Opera Mobile 10.1 beta or higher on Android
- Google Chrome (Windows Vista or newer, Windows XP requires Chrome 6 or higher, OS X 10.5.7 or newer requires Chrome 5.0.342.1 or higher)
- Konqueror/KDE 4.7 or higher
- MobileSafari for Apple iOS 4.0 or newer
- Android standard browser on Honeycomb (v3.x) or higher
- Windows Phone 7
