In digital marketing, CTR is an important metric that measures the number of clicks advertisers achieve on their advertisements per number of impressions.
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The click-through-rate, also called CTR, is the ratio of the number of times an ad was clicked on against the number of times it was presented. It is calculated by simply dividing the advertisement’s clicks by the advertisement’s impressions. Achieving a good CTR is crucial to one’s advertising campaign since it directly affects the Quality Score and how much one pays every time somebody clicks on a search ad.