How Much Can We Trace A Link ?

Hi Guys
I have something to ask you.
I search for answers but I found nothing.
So, I ask here.
How Much Can We Trace A Link?
For Example :Facebook---->YouTube---> Landing Page---->Button---->CPA.
I wonder if a link can only be tracked up to previous click...
I am now doing CPA but they don't accept social media traffic.
So, I ask.

Depends. For example, you can find the youtube link if you search for the landing page. Then, you can find the facebook link if you search for the youtube link.

Depending on the setup, the network can find your landing page (in the referer header).