The CTA is the moment of commitment. A visitor reading 'Get started' has to imagine what 'started' means — what happens after the click, what it costs, how long it takes. Every imagined uncertainty is a reason to leave. The CTA's job is to remove the imagination work.
The strongest CTAs answer three questions in five words: what do I do (action verb), what do I get (outcome), what does it cost (risk reducer). 'Book a demo' names the action only; 'Book a 15-minute demo, no card required' names all three.
Visual treatment matters too. The CTA should be the highest-contrast element above the fold. If the visitor's eye lands on a hero image or a navigation link before the CTA, the visual hierarchy is fighting your conversion.
How Lytms scores it
Lytms scores CTAs under the CTA & Offer dimension. Modules: cta-architecture (does the copy combine action + outcome + risk reducer?), cta-visual-weight (is it the highest-contrast element above the fold?), cta-landing-match (does what the ad promised match what the CTA delivers?), offer-strength (free, trial, demo, or commitment? — each has a different conversion ceiling).
See also
From the blog
See cta strength on your own page.
One URL. About 2 minutes.