You can use a CAPTCHA before showing the final offer to check if a real person is behind the click. It works by stopping bots or scripts that pass through your redirects but never convert. Some affiliates add it on a bridge page before sending users to the offer. But you need to be careful, because too many steps can also annoy real users. It’s more useful when you're getting a lot of fake visits and want to test the traffic quality. What do you think about using a CAPTCHA in pop traffic campaigns?