SiteAdvisor is a downloadable utility to help you stay safe while you browse.


  • Web sites are tested for excessive pop*ups and other annoyances. So far we've tested sites representing more than 95% of worldwide Web traffic.
  • Downloads are tested for viruses and bundled adware, spyware or other unwanted programs. We've tested more than 475,000 to date.
  • Sign-up forms are completed using a onetime use email address so any subsequent spam can be tracked. Our bots receive mail from more than one million places already.
  • Feedback from individual users and analysis by SiteAdvisor staff enhances SiteAdvisor's automated testing.
  • Site Report pages document every SiteAdvisor test.


  • Operating System: Windows 98/ME/2000/XP, Linux and Mac OS X
  • Web Browser: Mozilla Firefox 1.0.7 and 1.5 (1.5 recommended)
  • Minimum Hardware: 400 Mhz processor, 128 MB RAM, 5 MB free disk space, and an Internet connection
  • SiteAdvisor for Firefox is a small extension of only 40K