Visit Google Analytics to learn more.
With Google Analytics, you can even get "real time" reports of what is happening on your website:
REAL TIME REPORTING
In addition, you can track the following type of website activities:
NOTE: For Wix.com accounts, you must upgrade to a paid account with a unique vanity domain name in order to connect Google Analytics tracking to your webpage. A free alternative that does work with Wix.com is StatCounter.
There are several online resources that you can help you better understand and analyze the data that you get from the various Web analytics services.