As a UX designer, your task is to design a landing page for an online course that maximizes conversions. Include elements such as a compelling headline, course benefits, testimonials, and a clear call-to-action. Use design principles that enhance user experience, such as simplicity, readability, and visual hierarchy. Provide a wireframe of the landing page layout, and suggest A/B testing strategies to optimize for higher conversion rates. The tone should be educational and persuasive, appealing to potential students.