CTA, short for Call to Action, is a prompt that encourages users to take a specific next step - clicking a link, signing up, making a purchase, or sharing a post. CTAs appear as buttons, text links, or captions in ads, posts, and landing pages.
Effective CTAs are clear and specific about the benefit to the user. Rather than a vague “Click Here”, something like “Start Your Free Trial” tells the user exactly what they’re getting and why they should act.