The CPC (Cost per Click) measurement primarily focuses on which aspect?

The measurement of Cost per Click (CPC) primarily centers on the number of clicks received by an advertisement. This metric is crucial for advertisers as it directly reflects the effectiveness of their ad in prompting users to take action by clicking on it. CPC is calculated by dividing the total cost incurred by the number of clicks attained, enabling advertisers to assess how much they are spending to drive traffic to their desired destination, be it a website, landing page, or app.

Focusing on the number of clicks allows advertisers to evaluate the performance of their creative content and targeting strategies in capturing audience interest. A higher number of clicks often indicates that the ad is successful in attracting potential customers, while a lower number may suggest the need for adjustments in either the ad's messaging, design, or audience targeting.

The other aspects mentioned, such as total impressions, average view duration, and engagement rate, though important in their own rights, do not define CPC. Total impressions refer to how many times an ad is displayed, average view duration measures the length of time users spend watching a video ad, and engagement rate reflects how users interact with the ad overall. These metrics provide valuable insights into ad visibility and interaction but are separate from CPC, which is exclusively concerned with the direct response