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Hi Paris, First, can you clarify if you are just translating the content or if you are targeting specific countries? It sounds like you are geo-targeting, but I am not sure. Second, any page, no matter it's geo-targeting can show up in any Google search, regardless of the country of the user and content. If that is the best content for the user's query, Google will show it. This is why we see .co.uk results here in the US all the time. Can you share what URL was redirected to what URL?

When you say "drop", what kind of movement are we talking about? Could you give a before/after example without naming the site? The DA/PA algorithm is based on machine learning, so even if the link-graph remained static, it is recalibrated from time to time. Of course, on top of that, the link-graph never stays static. If you're talking about something like 62->60, it probably wouldn't mean much at all. If you're talking about 60->40 and consistently large-scale drops, that would more likely indicate problems with your link-building strategy across all of the sites.

Thanks Davinia and Peter, That's what I intend to do. I was considering adding rel=canonical, but then, as I wrote the question here, it occurred to me there's a better solution. Thanks for making the choice easier.