Inventory and lead capture are the foundation. Conversion tools are what you build on top to increase revenue per visitor. Listing tiers that generate recurring revenue. A financing calculator that changes how buyers think about price. A modal that captures leads from visitors who would otherwise leave silently. A trade-in form that converts sellers into buyers.
Conversion tools work at the margin. The inventory system brings buyers to the site. The email engine follows up with them. Conversion tools work on the visitors the other systems miss — the browser who doesn’t fill out the contact form, the buyer staring at a price instead of a payment, the seller looking for someone to evaluate their trade. Each tool is a second or third chance at capture.
wp_footer, three trigger conditions (exit intent, 70% scroll depth, 45-second delay), cookie-based 7-day suppression, mini lead form with CRM routing and source attribution.