When used in the context of digital marketing or online advertising, the term conversion is used to describe the successful completion of any desired action by visitors to your site. You’ll frequently hear “conversion rate” used as a measure of the success of advertising and marketing campaigns.
Usually, conversions denote the successful transformation of a site visitor into a buying customer – a sign that you’ve successfully persuaded them to purchase a product or service from you. It can also be applied to newsletter sign-ups, subscriptions, free trials or even a simple click on a call to action (CTA) button.