Click-through rate (CTR) measures how effective a marketing or advertising campaign is in generating clicks on a specific link or button. CTR is calculated by dividing the number of clicks on a link or button by the number of impressions or views of that link or button.
CTR is an important metric that helps determine how well a campaign is performing in terms of generating clicks and traffic. It is often used in conjunction with other metrics, such as conversion rate, bounce rate, and time on page, to get a complete picture of the performance of a marketing or advertising campaign.