Cost-per-click (CPC) is an online advertising model where advertisers pay a fee each time a user clicks on their ad. This model is commonly used in platforms like Google Ads and Facebook Ads, allowing businesses to drive traffic to their websites while only paying for actual engagement. CPC helps advertisers manage their budgets effectively, as they can set a maximum bid for how much they are willing to pay per click. This approach allows for targeted advertising, ensuring that businesses reach potential customers who are more likely to be interested in their products or services.