Data and Audience
Click-through rate is the number of clicks an online ad receives divided by how many times the ad is shown. CTR, as it is often referred to, is a measurement showing how many impressions an ad got versus how many of those took action and clicked it. A successful click-through rate is debatable and varies depending on the campaign. Google.com says a high CTR is typically a good indicator that users find your ads helpful and relevant.
