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Editorial Team
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Asked: 2026-05-27T22:42:03+00:00

I am using Rails 3.1.1 and I would like to redirect users, for example,

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I am using Rails 3.1.1 and I would like to redirect users, for example, from the U.S.A. to a proper subdomain us.site.com (this one is hosted on the same server as site.com). I know that I can localize a user by his/her IP address but how can I do that so to redirect he/she to the proper subdomain? There is a technique/gem to geo-locate user IPs and then handle redirection?

P.S.: Maybe, for performance reasons, I should use middlewares…

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1 Answer

  1. Editorial Team

    https://rubygems.org/gems/rack-geoipcity is a rack middleware gem I’ve published which you could use, or just use the GeoIP gem in your controllers.

    With the rack-geoipcity, you would query the X-headers it adds in and make a decision based on that. Something like:

    if headers['X_GEOIP_COUNTRY_CODE'] == "IN"
  redirect "/india"
end

    though I don’t currently use Rails, so it might be slightly different.

    There are plenty to choose from if you don’t fancy using the MaxMind db.

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