landing-page/_includes/analytics.html

{% if site.google_analytics %}
	<!-- Google Analytics -->
	<script>
    window.ga=function(){ga.q.push(arguments)};ga.q=[];ga.l=+new Date;
    ga('create','{{ site.google_analytics }}','auto');ga('send','pageview')
  </script>
  <script src="https://www.google-analytics.com/analytics.js" async defer></script>

	<script>
		// Automatically track all link clicks
    $(function() {
			$('body').on('click', 'a', function(e) {
				var url = $(this).attr('href');
				if (url) {
			    console.info('GA link click event: ', url);
					ga('send', 'event', 'link', 'click', url);
				}
			});
    });
  </script>
	<!-- End Google Analytics -->
{% endif %}