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So if G is showing different results to each person then how can we go about tracking our rankings if we can only see our own results which may or may not be the same to what others are seeing?
How should we judge now how a site is ranking if our site is ranking like 50 ways if say 50 people search from 50 different states? Up to now I was under the impression that there would be slight variations depending on which datacenter you hit, but it would be minor. Like if I see my site showing at #3, then I would assume a majority would see the same (of course assuming Google.com from US, and not UK, Canada, etc.) ranking for my site with maybe 10-20% seeing at #4, #5, or small percentage at #2. Then after some time I would stabilize on all datacenters and show #3 ranking for my keyword.
Is this kind of assumption no longer valid?
[edited by: tedster at 6:40 am (utc) on May 19, 2010]