What makes a good call to action button? There are many things needed to make a good call to action button and one of them the positioning. Yes, positioning affects the effectiveness of your CTA.
Where should you place your CTA?
Place your CTA where the eye can see. Every website design and structure varies; thus, there is no single rule on where to place your call to action buttons. However, there are two perfect ideas on where to position the call to action buttons.
ABOVE THE FOLD
The space viewable to the user without scrolling down, this is the most suggested place for CTA and works wonders for campaigns. However, a website like Facebook and Twitter are an example of the sites where users anticipate on scrolling rather than staying on the above the fold. So, again it depends on what works best for the design and structure of your website.
Example: The sign up button of Mailchimp
BELOW THE FOLD
Once you began scrolling down, you see the 'below the fold' view. Products that needs a lot of explanation of its use and benefits, example software, are recommended to put their CTA on below the fold. The reason for such is giving the visitor all the necessary details so that they will fully understand what the product has to offer for them and so they are excited to click the call to action button when the time comes.