Want to know, Is it just me? or anybody noticing this... each time i visit the site (www.antigravityinc.com)i get alert for virus and its been happening for a while (more than months) , I have scan the site with the malware detecting tools listed here and seem safe.. is it that those malware checkers are not effective or my antivirus going nuts when it comes to this particular site.

Just want to be sure if malware checkers can be very reliable.