if you watch the layout.html you'll find the snippet. {{if response.google_analytics_id:}}<script type="text/javascript"> var _gaq = _gaq || []; _gaq.push(['_setAccount', '{{=response.google_analytics_id}}']); _gaq.push(['_trackPageview']); (function() { var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); })(); </script> {{pass}}
just before the closing </body> tag. Short version: if you set response.google_analytics_id, that snippet is inserted into the page and allows tracking from google analytics, without any additional code.