Questions
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Geoip redirection, 301 or 302?
For geo-redirects, I do not recommend you use 301 redirects. Browsers can cache these, so if you tell a browser in Canada that example.com should redirect to www.example.com/ca-fr, and later the user changes their language to English, and then tries to go www.example.com, the browser could use that redirect again to go back to the French version without hitting your server. 301 tells the browser that www.example.com ALWAYS (permanently) goes to www.example.com/ca-fr. Page rank isn't really a consideration with these, since Googlebot always comes from the US, so it should never hit these redirects. If example.com always goes to one of the versions via a redirect (i.e. you don't serve content under that root URL), then you do have a bit of problem with redirects. You don't want to 302 Googlebot to another page for your home page, but at the same time, you want to avoid weird redirect behaviors for your customers. Google can visit the international versions directly without redirects, right? They should have no problem indexing those pages then. I agree with István, get some local links to your different local versions, register them each with Google Webmaster Tools (and Bing), put up sitemaps for each, and implement the hreflang tags in your sitemaps (or pages). That way Google can easily index each version, and knows exactly what each version is for.
Intermediate & Advanced SEO | | john4math0