To track your website traffic, you need to set up the google analytics in your website.
Sign in with your existing google account or create a new google account if you don't already have one.
Then sign up for google analytics.
Select the option - Start Using google analytics - Sign upFill out the details for your website and click on Get Tracking Id.
You will then see a box with a note : This is your tracking code. Please copy that code and send it to us and then we will do the integration in your site templates.
For more help/understanding about analytics , visit https://support.google.com/analytics/answer/1008015?hl=en&ref_topic=3544906
Note : After your google analytics code is added to your site, It will take a few days for Google to start tracking the site. You can try logging into http://www.google.com/analytics/ to access the report after few days.