I got 0.7 on FF, 0.3 on Opera and Chrome, all in incognito mode. Maybe they have just a few values and return it based on AND OR logic of 2-4 variable. Or maybe

I got 0.7 on FF, 0.3 on Opera and Chrome, all in incognito mode. Maybe they have just a few values and return it based on AND OR logic of 2-4 variable. Or maybe they are just playing around trying to gather some stats, for some "Don't be Evil" purpose!