Hey all,

Recently I have added an additional language to my site shopping cart and I would like that each language will have it own domain.
I.E - When user would like to use language 1 he will need to go to Lang1.com. When user would like to use language 2 he will need to go to Lang2.com

On the background the system will automatically redirect the user to Mainsite.com/index.php?languageid=X.

In addition, I would like that the header of the website won't change (I.E langX.com/….).
Moreover, I would like that search engines to differentiate between each domain and language. (I.E If I search for item X in language 2, the search engine will display the results as Lang2.com).

Is it possible? Can it hurt my SEO ranking among search engines?
What are the best technical measures that I should take in order to successfully implement my demands?

Tzachi