Red, yellow, green: that is how the site advisor rates websites. Green is for good sites, yellow for questionable ones, and red for avoid. Gray means the site has not been reviewed.
What is measured? The safety, not the content of the site. Adult sites may get the green light if there is no safety problem such as spyware, phishing, exploits, scams, viruses, or spam. Cookies are not considered spyware or adware but are classified as tracking or nontracking which is more benign than spyware or adware.
Once installed, the SiteAdvisor shows up in the status bar. When a site is visited, one of the aforementioned colors show up. SiteAdvisor also shows up on search result pages: a colored rating checkmark shows up next to each search result, making it easy to see if the site is nefarious or not. Currently google, ask, aol, yahoo, and msn search engines are supported.
To keep bias out of the picture, payment is not accepted by SiteAdvisor.
Sites are rated by several methods: an automatic safety analysis using a database of prescreened sites, user feedback, and manual analysis. You can join the SiteAdvisor group as a reviewer and submit your own site analysis and comments.
McAfee Site Advisor is currently available for Internet Explorer and Firefox.
Doug