Asynchronous Google Analytics snippets

JavaScript performance comparison

Test case created by Mathias Bynens and last updated

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Java applet disabled.

Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
Optimized snippet
var _gaq = [['_setAccount', 'UA-XXXXX-X'], ['_trackPageview']];
(function(d, t) {
 var g = d.createElement(t),
     s = d.getElementsByTagName(t)[0];
 g.async = 1;
 g.src = '//';
 // s.parentNode.insertBefore(g, s);
}(document, 'script'));
Default snippet
var _gaq = _gaq || [];
_gaq.push(['_setAccount', 'UA-XXXXX-X']);
(function() {
 var ga = document.createElement('script');
 ga.type = 'text/javascript';
 ga.async = true;
 ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '';
 var s = document.getElementsByTagName('script')[0];
 // s.parentNode.insertBefore(ga, s);

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1 Comment

Daniel15 commented :

Very strange that the default snippet performs better in Safari!