Google Analytics is the best and most complete free analytics for webmasters and sometimes the Google Analytics tracking code could be the culprit for slower page loads, pages stop responding and slow down the overall load time of the website.To overcome this problem Google has come out with a new tracking alternative called Asynchronous Tracking.

What To Change ?

Remove your existing Google Analytics Code from your Website and Replace it the following code, and also replacing UA-XXXXX-X with your User Account Number (UA).

<script type=”text/javascript”>

var _gaq = _gaq || [];  _gaq.push(['_setAccount', 'UA-XXXXX-X']);  _gaq.push(['_trackPageview']);

(function() {    var ga = document.createElement(’script’);    ga.src = (‘https:’ == document.location.protocol ? ‘https://ssl’ : ‘http://www’) + ‘.google-analytics.com/ga.js’;    ga.setAttribute(‘async’, ‘true’);    document.documentElement.firstChild.appendChild(ga);  })();

</script>

Note : Place the code above the </head> tag and replace the UA-XXXXX-X with your tracking id.

What The New Code Provides ?

• Faster tracking code load times for your web pages due to improved browser execution
• Enhanced data collection & accuracy
• Elimination of tracking errors from dependencies when the JavaScript hasn’t fully loaded

Source : Google Code Blog