Looking for CPA "click tracker" for my client

I have a team that works on Facebook. They use free methods to promote my offers. Now I want to set a bunch of trackers for them on an individual landing page. There will be an individual link for each of them that will show the unique clicks they make.
And they must be able to watch their unique click without accessing my dashboard through password and username.
Now can you tell me about such a click tracker website?