Homonym: CPM (Cost)
CPM, or Cost Per Mille, is a digital advertising metric that represents the cost of 1,000 impressions of an ad. Advertisers use CPM to measure the effectiveness and reach of their campaigns, allowing them to understand how much they are spending to get their ads seen by potential customers.
In a CPM model, advertisers pay a set fee for every 1,000 times their ad is displayed, regardless of whether users click on it. This approach is commonly used in display advertising and helps businesses budget their marketing efforts based on visibility rather than direct engagement.