Different ISPs produce different search results

[superclown2]

My two broadband feeds, both from UK service providers, give me two different sets of SERPs, which I assume is because they come from different Google data centers, which suggests that geotargeting is faulty. As a result one of my sites appears very high in .uk and most European feeds but very poorly in WWW1 which seems to be the feed that one of my ISPs (quite a major one here in the UK) taps into. Does this mean that I now have to have two sites, one specified as a UK site in webmaster tools, and one not? Or is this likely to be a temporary aberration? We all got used to optimising for different search engines a decade ago so do we now have to optimise for different Google datacenters too?

[Brett_Tabke]

> temporary aberration?

Hard to say since G is playing with geo targetting all the time. You can get different results all over the US now. I am sure it is the same with the UK.

[g1smd]

Err. Two different machines in the same local network can throw different results.

[Brett_Tabke]

I have heard that, but not seen that myself yet g1smd. Only if a person is logged into igoogle have i seen it.

[dstiles]

I've seen three different results on three different computers on the same broadband IP. One machine may have been logged into WMT but the other two weren't and one of those showed the higher result. This is in the UK looking at UK results.