rycus86/demo-site

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src/templates/include/tracking.html

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<!-- Google Analytics -->
<script>
  'use strict';

  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
  })(window,document,'script','https://www.google-analytics.com/analytics.js','ga');

  ga('create', 'UA-100998190-1', {'siteSpeedSampleRate': 100});
  ga('send', 'pageview');

  if (window.performance) {
      var timeSincePageLoad = Math.round(performance.now());
      ga('send', 'timing', 'JS Dependencies', 'javascript', timeSincePageLoad);

      var existingWindowOnLoad = window.onload;
      window.onload = function() {
          if (!!existingWindowOnLoad) {
              existingWindowOnLoad();
          }

          setTimeout(function() {
              var timing = window.performance.timing;
              var page_load_time = timing.loadEventEnd - timing.navigationStart;
              ga('send', 'timing', 'Page load', 'load', page_load_time);

              var connect_time = timing.responseEnd - timing.requestStart;
              ga('send', 'timing', 'Request time', 'request', connect_time);
          }, 0);
      };
  }
</script>