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Thank you, along the lines of what I was thinking but the added insight on domain authority makes perfect sense...now.

We have a .com site here in the US that is ranking well for targeted phrases. The client is expanding its sales force into India and South Africa.

They want to duplicate the site entirely, twice. Once for each country.

I'm not well-versed in international SEO. Will this cause a duplicate content filter? Would google.co.in and google.co.za look at google.com's index for duplication?

Thanks. Long time lurker, first time question poster.