How do you detect a website visitor’s country? > Webmaster > How do you detect a website visitor’s country?

There are some free services out there on the Internet which let you find country and IP-based geolocalization from the client-side IP data.

wipmania is a free JSONP service that can be used to determine visitors’ countries. It’s really simple to use:

<script type="text/javascript">
  // plain JavaScript example
  function jsonpCallback(data) { 
    alert('Latitude: ' + data.latitude + 
          '\nLongitude: ' + data.longitude + 
          '\nCountry: ' +; 

<script src="" type="text/javascript"></script>

if you use a framework that supports JSONP, like jQuery, you can use:

// jQuery example
  function (data) { 
  alert('Latitude: ' + data.latitude + 
        '\nLongitude: ' + data.longitude + 
        '\nCountry: ' +; 

Check the above snippet running here.

Instead of an alert dialog (as in the above example), if you want to redirect a URL that takes a US visitor to a .COM address and allows a Canadian visitor passes through normally (for a .ca version of a website with a sister .com version site), simply use a “switch” statement in the “onload” event, check the “country” returned from the json function, then call Server.Transfer ( or similiar.

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