Google Datacenters are servers that deliver content to a user who is requesting the data. This can be a search for instance. A user performing a search will get the results stored in one datacenter which does not have to be the results that other datacenters would deliver.

This can be quite frustrating for webmasters who try to analyse the rank of their website in the Google search engine. Fluctuations can occur daily and it can - more often than not - be attributed to results that are retrieved from different datacenters. Other possibilities are changes in the Google algorithm or a change in the backlinks of a related website.

The easiest way to check Google rankings in multiple datacenters is to use a script that does that. That sounds to easy, right ?

The Google Datacenter Watch Tool can do that for instance. It gives you the option to retrieve data from more than 700 Google Datacenters. Not all at the same time, it is usually displaying the results of ten datacenters. The first one hundred search results can be displayed.