I don't know if I'm just an idiot or maybe I just lack the vocabulary, but I'm providing leads to a client and I would like to put a tracking pixel on their thank-you page so that I can get credit for a lead that completed the sign-up process. My site gets the user started and then if they're interested in the offer they are directed to continue the sign up process on the client's site.
I just want to be able to give the client a pixel that they can put on their thank-you page. Everything I look at online seems to be wayyyy more complicated than that.
What do you guys recommend?