Redirect traffic based on IP Geo Location with api.ipstack.com

ipstack-country-redirect.js

var getJSON = function(url, callback) {

  var xhr = new XMLHttpRequest();
  xhr.open('GET', url, true);
  xhr.responseType = 'json';

  xhr.onload = function() {

    var status = xhr.status;

    if (status == 200) {
        callback(null, xhr.response);
    } else {
        callback(status);
    }
  };

  xhr.send();
};

getJSON('http://api.ipstack.com/check?access_key=USE_YOUR_KEY',  function(err, data) {

  if (err != null) {
    console.error(err);
  } else {
    if (data.country_code != "US") {
      window.location.replace("http://domain.com/world");
    } else {
      window.location.replace("http://domain.com/us");
    }
  }
});