Honestly, we think the biggest mistake you can make is trying to do too much. A landing page should focus on one goal, not five. Cluttered layouts, weak headlines, vague CTAs, and slow load times also kill conversions fast. Another one: not matching the message to your ad or traffic source. If your ad promises a free demo and your page doesn’t deliver, people bounce. Also, don’t make users hunt for info, be clear, concise, and value-focused. And please test your forms; broken or overly complicated forms are annoying.