Typically web analytics tools tell you the following for each page of your site.
How to use Web Analytics
Google Analytics is a free and easy to set up option for gathering web analytics about your site. It also has the added bonus of having a large number of users; so online help is easy to find. To set up
Then you simply sign into your account to view the data.
There are many other options out there. Take a look at this Inc. article on the 11 Best Web Analytics Tools.
Analyzing and Using the Data
It can difficult to figure out what to do with the information. Here is some food for thought about the data collected.