referrer
A referrer to a web page represents the location from which a site visitor arrived at the page. The referrer report available in the Site Statistics feature lists the search engines and keywords your site visitors used to find your page as well as the web addresses of the sites from which they came. You can use this information to gauge the success of your promotion efforts and fine-tune your marketing strategy. Learn more.
root
Root refers to the highest level of an organizational hierarchy, and is commonly used to specify the main directory of a site or application. The root directory of your web site contains your home page and any folders (subdirectories) you may have created. Your domain name — such as widgetdesigns.com — represents the root directory of your site. You can access your subdirectories by appending the path of the subdirectory name to the root, such as widgetdesigns.com/subdirectory1/ or widgetdesigns.com/subdirectory1/subdirectory2/.
RSS
RSS (Really Simple Syndication) is a format used to distribute headlines and similar content across the Internet. Owners of blogs and other web sites that update their content frequently can make their new posts and content available in files called RSS feeds, which consumers can receive and review in a newsreader, such as My Yahoo!, making it easier and faster to keep up with new information on their favorite sites. Learn more about RSS.