I'm trying to optimize my website and running a few tests using webpagetest.org. I tried the test from Singapore and Hongkong.
I saw that while all facebook, quantcast, chitika scripts were loading from singapore/hongkong servers, but jquery (google hosted), plusone.js, twitter etc were loading from the mountain view/palo alto/cambridge servers.
Since I'm using cloudflare, I can see that one of the JS files that I host on my server was actually loading from one of cloudfare's singapore servers.
So is there a real benifit of using google hosted jquery etc?
Sample test results are here
1) For my website's home page (http://www.humbug.in) - Test Location Singapore
2) For the url of this question - Test Location Amsterdam
In both cases jquery is being loaded from mountain view servers