You can validate 15 times and sometimes get 5 different scores. I started thinking as to why. Is it down to the key you provide? (Different keys hit different google api servers. I've concluded no.) Is it down to the location you're from. (If dp uses load balancing, and has servers all over maybe that's the case). Who knows if this is true. If you take out your key altogther it often varies the score. Maybe it uses another method as dp can't hit the api with no key? Comments? If we know what makes it go down maybe we can tweak things to make it go back up...?
der.... What I'd like to know is what determines what DC it hits, geography? Time of day? The key you use? Etc.