Can I host Google analytics in external JS?

Question

<script type="text/javascript">

  var _gaq = _gaq || [];
  _gaq.push(['_setAccount', 'UA-123-2']);
  _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>

Besides caching issues (if I change the tracking ID), is there anything else I should know about? Will it still function? He recommends putting it in front </head>, all my other JSs in front </body>, can I put it there?

Answer 1

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Answer 2

script DOM script . script :

<script type="text/javascript" async src="https://ssl.google-analytics.com/ga.js">

HTTPS :

<script type="text/javascript" async src="http://www.google-analytics.com/ga.js">

HTTP.

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HTTP-, , , , .

, , script, .