Your website may already be using Google Analytics. If not, you should consider activating it. It's completely free and provides high-quality reporting and analysis. What's more, our email marketing software can integrate with Google Analytics to track how many hits to your site came directly from your email marketing campaign.
By adding some tracking information to the email, we can isolate the results of the email within your Google Analytics account. With this feature enabled, you'll be able to see the traffic that's directly related to the campaign.
Find out more at http://www.google.com/intl/en_uk/analytics/