StatEye is an open source software package that measures and analyzes human website traffic. Advanced referrer analysis finds the search terms used on search engines and determines which referrers lead to sales. Performance of your sales path, detection of unique visitors, subsite reporting and filtering out of your own pageviews are some of the many other features StatEye offers. While separation of logging and analysis minimizes the impact on visitors. It comes with an easy setup script that detects your settings automatically.