And there you can find a 4 year old infographic about from which continents users come from: http://blog.italki.com/2015/01/25-things-you-didnt-know-about-italki-in-2014-infographic/

If you subscribe to Alexa, you can get the full info: https://www.alexa.com/siteinfo/italki.com

As my knowledge, there are some websites to count how many browsers to the url. or the links to get a functioning count. It shows statistic viewers quantity from which country. That was set up on the MSN blog pages. That is back in the past. There were calendar and weather functional modules.