There are four types of goals in Google Analytics:
A URL Destination goal is a page that visitors see once they have completed an activity. For an account sign-up, this might be the “Thank You for signing up” page. For a purchase, this might be the receipt page. A URL Destination goal triggers a conversion when a visitor views the page you’ve specified.
A Time on Site goal is a time threshold that you define. When a visitor spends more or less time on your site than the threshold you specify, a conversion is triggered.
A Pages per Visit goal allows you to define a pages viewed threshold. When a visitor views more pages –or fewer pages –than the threshold you’ve set, a conversion is triggered.
An Event goal allows you to attach a conversion to an event that you have defined. (Will explain more about events)
