CPC, or Cost Per Click, is an advertising metric that establishes how much an advertiser pays each time a user clicks on one of their ads.

It is a form commonly used on platforms such as Google Ads or Facebook Ads. CPC is especially useful for campaigns that seek to generate traffic to a website.

CPC is an important KPI in digital advertising, as it allows advertisers to measure the performance and effectiveness of their campaigns based on the cost associated with each click received. A key advantage of CPC is that it ensures that the advertiser only pays when a user actively shows interest (by clicking) in their ad, rather than simply viewing it.