CRO, or Conversion Rate Optimization, is the process of increasing the percentage of website visitors who take a desired action, such as making a purchase or filling out a form. This is achieved through strategic and data-driven techniques, such as A/B testing, user experience analysis, and targeted marketing campaigns. CRO is a crucial aspect of digital marketing, as it helps businesses maximize their online presence and drive more conversions. By continuously optimizing and improving the user experience, CRO allows businesses to effectively convert website visitors into loyal customers.