Deal with advanced CRO only after you’ve nailed the basics. Behavioral targeting personalizes content based on visitor actions, showing the right message at the right time. AI-powered chatbots these days answer questions and guide users in real-time. Dynamic pricing or offers based on user behavior are also useful. Multi-step forms (instead of one long form) often get better results. Psychological triggers like scarcity and urgency often nudge hesitant buyers. If you want even more control, look at server-side testing for deeper optimizations beyond traditional A/B tests.