A call to action is a button or link that tells visitors what to do next, such as Buy Now or Sign Up. To optimize it, the text should be clear and direct. Visitors should understand what happens after clicking. The button must be easy to see, with enough space around it. Placing it in a natural position, like after useful information, increases clicks. Testing different words and placements can improve results over time. What makes a call to action more persuasive?