The website statistics is the detailed report of your websites & server's usage. You can view website statistics in several ways.
The best method is using Awstats or Webalizer. To view website stats in Awstats or Webalizer follow the below steps.
Login to your Plesk panel.
Go to Websites and Domains.
Click on Web Statistics.
The simplest way is using the stats displayed in the home page of your Plesk panel.
Another way is to click on Statistics tab.
Another way is going to Websites & Domains tab and clicking on Web Statistics icon.