I have a site which has been fluctuating considerably with regard to positions in the search listings across all the google data centres. For example, since the major update a few months ago the site in question will appear anywhere between postion 8 and 35 on the various data centers at any one time for a key phrase search that is relevant for my site. However it is not just one phrase, I get this difference in results for every different keyword phrase search I conduct!
There has never been a day in the past 3 months where the positions have been relatively close.
To complicate matters, the site is a UK site with a .co.uk domain. However when you search on www.google.com the site always appears higher in the results than when you search on www.google.co.uk with the UK filter applied. For instance for one phrase the site appears in 11th spot on www.google.com, but in position 34 on www.google.co.uk with the UK filter applied. I would expect the opposite to be the case.
I would much rather the site appeared higher on the .co.uk than on the .com. It makes no sense to me and I have completely run out of ideas.
Has anyone else experienced similar problems? I have a couple of other sites on the server on different subject matters and they all seem fine and the results for these across all datacenters are quite similar and they appear higher on www.google.co.uk as you would expect.
I have always been very careful not to engage in anything that might be regarded as spam and have concentrated on creating content and trying the get quality sites to link to me.
Can anyone offer any advice as it is now beginning to harm my business as most of my visitors are now US rather than UK based. Any advice would be much appreciated.