SEO Video Blog – Movement in Organic Google Positions #47
Author:
Nick Rinylo
SEO Videos
Welcome to this weeks SEO video blog, we often see our own and our clients listings move around in the organic search on Google.co.uk and get asked ‘why does this happen’?
The position of you website can be determined by a number of variables that Google’s algorithm takes into consideration, but we sometimes see variations with positions when nothing has been changed internally or externally on a website.
So along with changing internal structure or building authority via back links, what other elements can effect your positions? We could think of 4 main reasons:
1.) Data Centers (Internet Service Providers)
2.) Algorithm updates (Such as Google Caffeine)
3.) Web Preferences (Covered on a previous video blog)
4.) Location (Based on Your IP address)
Data Centers are a collection of servers that host the Google platform, Wikipedia suggests that there are currently at least 12 Google data centers. We often notice that using a different Internet Service Provider can give a variation in results. This could be due to ISP’s using different data centers, some of which may list you website differently.
Algorithm changes like the recent ‘Caffeine’ update are usually rolled out to a single data center initially then across the rest once the implementation has been successful. Algorithm updates can change your websites position as a competitor may satisfy new guidelines and restrictions better than your website.
We have discussed ‘web preferences’ and customization in a previous video blog, it’s when your Google homepage recognizes patterns in your search history and provides you with a individual result tailored to suit your needs. Watch the previous video blog on Google Customization for more information.
Location based search, provides a user with a search that is related to where in the country you are. For example you may get a different result on Google.co.uk in London than in Edinburgh. You can set a default location within your Google account or let Google identify your IP address and locate you automatically. For Mobile devices we assume it uses GPS positioning to track and adapt your results.
We have found some useful links that we have added to the blog post, a site that compares Google Caffeine results to the live Google.co.uk and a couple of sites that query all 12 Google data centers allowing you to see your search engine positions across all possible servers.
Thanks for watching.
Comparecaffeine.com
http://www.seochat.com/seo-tools/multiple-datacenter-google-search/
http://www.webrankinfo.com/english/tools/google-data-centers.php

