I am not experienced technical person, and still learning but will try to explain what I have done so far and what my query is.
I have a (hypothetical) domain az-studios.com
On that domain I have 3 subdomains:
Each of them have 301 header redirections as follows:
london.az-studios.com -> www.az-studios.com/london
newyork.az-studios.com -> www.az-studios.com/newyork
paris.az-studios.com -> www.az-studios.com/paris
So I can maintain only one unique HTML document (that appears to be three different paths) I have setup .htaccess to use MOD_REWRITE as follows:
www.az-studios.com/london -> www.az-studios.com?city=london
www.az-studios.com/newyork -> www.az-studios.com?city=newyork
www.az-studios.com/paris -> www.az-studios.com?city=paris
This is so far the existing structure.
I have recently purchased three (hypothetical) keyword rich domains:
What I would like to achieve is to have these three domains pointing as following:
www.movie-studio-london.com -> www.az-studios.com?city=london
www.movie-studio-newyork.com -> www.az-studios.com?city=newyork
www.movie-studio-paris.com -> www.az-studios.com?city=paris
The only tricky thing I can't figure out is how I do that so that from a Google SEO point of view, it does not use 301 redirects, no frame. What I mean is that I want the response sent to the browser not to be a 301 redirect and no jump of url in the adress bar of the browser.
Some of you might scream "duplicate content" but the websites, although using the same index.php are very different.
I am also aware that this could be seen as doorway but these new purchased domains really define (with keywords) my products and what the different websites are about.
Any idea? Any more details, please ask...