McAfee SiteAdvisor™, software is an award-winning, free browser plug-in that gives safety advice about Websites before you click on a risky site. These site ratings are based on tests conducted by McAfee using an army of computers that look for all kinds of threats (detailed below). The result is a guide to Web safety. The SiteAdvisor software is free, easy to install and even easier to use. And it doesn't collect any personally identifiable information
McAfee SiteAdvisor™ software