We would like to think that a visitor clicks an ad or finds your website, and immediately converts into a sale or lead. Unfortunately, that is rarely the case.
Today, people will visit your website and other touchpoints several times. They'll find your website, leave your website (and hopefully come back), visit OEM sites, sometimes 3rd party websites, click on an ad... Then, they will finally convert!
So the question is:
How many thousands of visitors do you get to your website monthly?
How many leads are you getting?
Did they convert into a sale?
If so, which marketing channel gets the credit? Was your website responsible for the sale? Or was it your Facebook ad?