How do founders use AI to build and optimize landing pages that convert ad clicks?

Half of paid performance is decided after the click, and AI now covers both sides: builders like Lovable, Unbounce, and Replit generate a campaign-specific page in hours, while AI analyzers critique headlines, hierarchy, and friction, and tools like Smart Traffic route visitors to the variant most likely to convert. The best practice is one dedicated page per ad angle, generated fast, then iterated against real conversion data rather than taste. Never send AI-volume ad traffic to a generic homepage.