The Click-Through Rate (CTR) quantifies the percentage of users who engage with a specific call-to-action (CTA) within an ad, offer, or push notification by completing a desired action, such as downloading an app, signing up, or making a purchase. It serves as a pivotal conversion metric calculated by dividing the total number of users who completed the desired action by the total number of users who viewed the ad or received the offer, expressed as a percentage. CTR analysis empowers marketers to assess campaign effectiveness and pinpoint potential user experience enhancements.