Definition
Call to Action (CTA)
Also known as: CTA
A prompt that encourages a visitor to take a specific action — such as 'Start Free Trial', 'Add to Cart', or 'Get a Quote'. Placement, copy, and design all impact effectiveness.
What does Call to Action (CTA) mean?
A call to action is the specific instruction, usually a button or link, that tells a visitor exactly what to do next, such as 'Start Free Trial' or 'Add to Cart.' It is the mechanical hinge point where interest turns into an actual conversion event.
Why does Call to Action (CTA) matter?
Its wording, color, size, and placement all affect whether visitors notice and act on it, and a CTA sitting next to a relevant trust signal, like a review count or guarantee badge, tends to feel less risky to click than one presented in isolation. A weak or ambiguous CTA can bottleneck an otherwise well-designed page.
How is Call to Action (CTA) applied in practice?
CTA performance is measured through click-through rate and downstream conversion rate, and teams test variations in copy, contrast, and surrounding context, including whether adding a testimonial or star rating near the button changes the click rate.
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Where this fits
Call to Action (CTA) sits in the conversion rate optimization part of the NotiProof resource network.
Read the Conversion Rate Optimization guide