The Broken Promise
User searches: 'online calculus tutoring for high school'
Your ad says: 'Expert Calculus Tutors - High School Students - Start Today'
User clicks. Landing page says: 'Welcome to MathHelp Pro - We Teach All Subjects K-12'
User leaves in 3 seconds. You just paid $4 for a click that went nowhere. Why? Your ad promised calculus tutoring for high school. Your landing page talks about everything else. Message mismatch kills conversions.