I want to trace the activity of my customize link sent via email or on chat to my customer. Activity like : whether they opened the link or not? How much time they were on page? examples: I have decided to sent business proposal link to Mr.ABC and Mr.XYZ So, for ABC the link would be like : www.mycompany.com/proposal ....abc... So, for XYZ the link would be like : www.mycompany.com/proposal ....xyz... its like link analytic. How to go ahead with with it?