Telerik RadControls are developed on top of Microsoft ASP.NET AJAX, and do not introduce yet another AJAX implementation. As a result you can enjoy all the benefits of the industry-standard Microsoft technology. Your apps will be as fast, as secure, and as memory efficient as is Microsoft ASP.NET AJAX.
The new Telerik WebUI Test Studio is an automated testing solution,powered by ArtOfTest and specifically tailored for the Telerik RadControls for ASP.NET AJAX thanks to the integrated control translators. As Telerik's ASP.NET AJAX controls are an integral part of Siteifnity CMS, the WebUI Test Studio is an extremely helpful tool to ensure a very safe product developing cycle.
Sitefinity ships with the Telerik RadEditor for ASP.NET AJAX, the leading WYSIWYG rich-text editor, winner of a number of prestigious industry awards. RadEditor is equipped with a powerful toolbar that could be fully customized, out-of-the-box XHTML output, full keyboard accessibility, integrated inline spellchecker and industry-best cross-browser support.