Find the duration of the visitor login of a website

With out login/logout functionality, you will need to somehow identify each of your users and time spend in your site. You won't be able to find exact time as you won't know for sure when they leave the site.

Look into the session object and try to uniquely identify each user. One way to do this would be to listen to the Session Start event and assign unique value to each visitor, perhaps in cookie. Somehow you will need to database this unique value against the the Session ID

string sessionId = HttpContext.Current.Session.SessionID;


Then when the session timed out, compute the total time duration.