devdocs/assets/javascripts/tracking.js

try {
  if (app.config.env == 'production') {
    (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-5544833-12', 'devdocs.io');
    page.track(function() {
      ga('send', 'pageview', {
        page: location.pathname + location.search + location.hash,
        dimension1: app.router.context && app.router.context.doc && app.router.context.doc.slug_without_version
      });
    });

    page.track(function() {
      if (window._gauges)
        _gauges.push(['track']);
      else
        (function() {
          var _gauges=_gauges||[];!function(){var a=document.createElement("script");
          a.type="text/javascript",a.async=!0,a.id="gauges-tracker",
          a.setAttribute("data-site-id","51c15f82613f5d7819000067"),
          a.src="https://secure.gaug.es/track.js";var b=document.getElementsByTagName("script")[0];
          b.parentNode.insertBefore(a,b)}();
        })();
    });
  }
} catch(e) { }