This is a free service that can help you understand how visitors use your site
You can create an account at: http://www.google.com/analytics/standard/
Copy the script from your Google analytics panel (Data streams > click on the stream > View tag instructions > Install manually > Copy the code)
paste it into your site head scripts (Pages panel > Site scripts > Head scripts), and publish your site.
Click on the pages panel and then Site Scripts > Head Scripts and paste the code.
Publish the site.
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