Click-through rate (CTR) is a metric used to measure the success of an online advertising campaign. It is calculated by dividing the number of clicks on an ad by the number of times the ad is shown, and is expressed as a percentage. CTR is an important metric for advertisers, as it helps them to determine the effectiveness of their campaigns and the return on investment (ROI) they are getting from their ad spend.
CTR is also used to measure the success of organic search engine optimization (SEO) efforts. By tracking the number of clicks on a website’s organic search results, marketers can determine how effective their SEO efforts are in driving traffic to their website. CTR is also used to measure the success of email campaigns, as it helps marketers to determine how many people are actually clicking on the links in their emails. By tracking CTR, marketers can adjust their campaigns to ensure they are getting the most out of their ad spend.