System Requirements

Server-side Requirements

Windows Server 2008, 2008 R2, 2012, Windows Vista Home Premium/Business/Enterprise/Ultimate or Windows 7 (both 32bit and 64bit) or Windows 8 (both 32bit and 64bit)
Microsoft .NET Framework 3.5 SP1 or 4.0 or higher
Microsoft Internet Information Services (IIS) 7.0, 7.5, 8.0 or Visual Studio/Visual Web Developer 2008/2010/2012 built-in web server
Microsoft SQL Server 2005, 2008, 2008 R2, 2012 (including free SQL Server Express Edition)
Virtualized environments including VMware, Microsoft Hyper-V Server, Microsoft Virtual Server

ASP.NET 3.5 SP1 (or higher) and Microsoft SQL Server 2005/2008/2012 support
Medium-trust or full-trust permissions for the ASP.NET application
If the server uses medium trust, ASP.NET AJAX 1.0 must be installed on the server.
If the application uses .NET Framework 3.5 SP1 and is hosted in a medium trust environment, it is necessary to have Microsoft Chart Controls installed on the server.
It's recommended that your hosting plan comes with 250 MB or more memory and 100+ MB database

You can use your favorite hosting provider or choose from our hosting partners.

Kentico CMS fully supports the Microsoft Windows Azure platform, including SQL Azure, Azure Storage and other services.

Amazon EC2 and Amazon S3

Kentico CMS can be used in the Amazon EC2 environment using virtual machines that are compatible with Server-side Requirements listed above.
Kentico CMS can store media files on Amazon S3 whether the website is running on Amazon EC2 or on premise (hybrid architecture)

Internet Explorer 6.0+
Firefox 1.0.5+
Chrome 12+
Mozilla 1.7.1+
Netscape 7.1+
Opera 7.52+
Safari or Firefox on Mac OS
Mobile browsers, such as Safari on iPhone, are supported as well, but some features may be limited by browser capabilities.