If you are using the New Google Sites you can view the Events for each Site.
In GAT+ Google Drive audit you can see all your Google Sites.
In the below screenshot, we select “Sites” then select the “Events” tab at the top. That’s how you’ll be able to see all events concerning to your Google Sites.
Once the results are displayed you can export the data into a spreadsheet.
You can also select the Site’s title and view events individually. Just click on the Google Site then “Events” in the File details tab.
Doing that allows you to see how often your G Suite users access a site.