Cost-per-click (CPC) is a digital advertising model where advertisers pay a fee each time a user clicks on their ad. This model is commonly used in online platforms like Google Ads and Facebook Ads, allowing businesses to drive traffic to their websites. The amount paid per click can vary based on factors such as competition, ad quality, and targeting options. CPC is an essential metric for measuring the effectiveness of online advertising campaigns. By analyzing CPC, advertisers can assess their return on investment and optimize their strategies to achieve better results. Lowering CPC while maintaining ad performance can lead to more efficient marketing efforts.