We've dealt with many web site owners who have very little idea of how their site functions or how a customer uses or navigates their site. It is critical site owners do know how a customer interacts with their site.
If you have a contact form - use to understand how a customer interacts with you.
If you have an on line shop place different orders so you can deal with customer enquiries when needed.
If you have data collection forms - use them and test for yourself.
Understanding how a customer uses your site will help indentify issues before they become a problem.