Cost Per Click, commonly abbreviated as CPC, is a digital advertising metric that measures the amount an advertiser pays each time a user clicks on one of their online ads. In the realm of pay-per-click advertising, which is a prevalent model used across various platforms such as search engines and social media sites, CPC is a fundamental concept that reflects the effectiveness and cost-efficiency of online ad campaigns. When an advertiser sets up a campaign, they can often bid for keywords or target demographics, and the CPC is determined by the level of competition for those targets as well as the advertiser’s own budget constraints and bidding strategy. The actual cost per click is calculated by dividing the total cost of the clicks by the total number of clicks received. This metric is crucial for advertisers to understand because it directly impacts their return on investment. A lower CPC indicates that an advertiser is paying less for potential customers to enter their sales funnel, making the advertising campaign more cost-effective. On the other hand, a high CPC might suggest a need for optimization, either in the ad’s targeting, its creative elements, or the bidding strategy. Advertisers continuously monitor and adjust their CPCs in order to maximize their advertising budget and to ensure that they are reaching the right audience at a cost that makes business sense.