Localised google search engine(SE) mean, different version of google SE base on your local area or country. This done by identifying your IP address.
Google’s Servers automatically provide Internet users all over the world with a “localized” version of the incredible Google Search Engine that we know and love. It could be interesting to see how SEO works for your site in different languages.

What the difference main google.com vs google.com.country ? Most noticeable are few. Most of the seach result will be same, and localised google versions the locale website which can load faster will get higher possiion comapre to in main google version. Second, if you notice the ads. In main google.com the ads change everytime we load, same goes for localised versions. And we can some new ads in localised version of google SE. If we futher look into the ads we can find out that the ads accualy from local adversisers. from this google gain another marketing adversisment, very focused targeted marketing as the advisiers want.
TOP 10 Localised Google Search Engine Versions (Population Starting to play major role) :
10 ) Korean googlers
9 ) Russian googlers
8 ) France googlers
7 ) United Kingdom googlers
6 ) German googlers
5 ) Brasilian googlers
4 ) Indian googlers
3 ) Japanese googlers
2) American googlers
1 ) Chinese googlers














