Send campaign traffic somewhere that catches it. A scorecard asks visitors a few questions about their situation and gives them a personal score, and you learn who they are and what they need. A waitlist tests an idea before you build it: people join and tell you their problem and what they would pay. Put two waitlists in the same comparison group to see which idea the market wants. Only visitors who tick the consent box become contacts, and seeing a result never depends on ticking it.