Your call to action must be the focus of your copy. Use and repeat the same CTA depending on the page length. CTAs shouldn’t be too frequent to disturb visitors. They shouldn’t be too infrequent either, or you risk losing their attention. Make it easy for visitors to find the call to action without having to look for the button. Find the balance by trying out the following technique. Scroll your webpage on a laptop and see if there is more than one repeated CTA on the screen while scrolling. If repeated CTAs appear on the screen, then you should reduce the number of them.