New Universal Google Analytics and sharing data across *.worldsecuresystem.com

Thanks Liam. The script provided by GA, set up has changed though, this is the GA Universal Analytics script below ~

<script>

  (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','//www.google-analytics.com/analytics.js','ga');

  ga('create', 'UA-xxxxxxxx-1', 'xxxxx.com.au');

  ga('send', 'pageview');

</script>

How do I update the script and ensure it will work?
Appreciate your feedback.

Megan