To monitor visitor statistics, connecting the site to Google Analytics is essential. The simplest method:

Copy the tracking code from your Google Analytics account (the code that starts with ``).

In DNN, go to Settings > Site Settings.

Go to the Custom CSS tab. (Yes, the tab name is misleading!)

In this tab, there are two sections for injecting code into the page Header and Footer. Place your Google Analytics code in the Footer section.

Save the changes. The code will automatically be added to all pages of your site.