CPM (cost per mille) is what you pay for one thousand ad impressions. Compute it as media spend divided by impressions, times 1,000. Advertisers use it to compare the cost of delivery on paid media across Display, video, Connected TV (CTV), and social, including Facebook and Google buys. CPM measures
Quality Score is a keyword-level diagnostic in Google Ads Search campaigns. Google scores it from 1 to 10 and breaks it into expected clickthrough rate, ad relevance, and landing page experience. Google Ads Help is explicit: Quality Score is not a key performance indicator, should not be optimized or aggregated,
An ad auction is the process a platform uses to decide which eligible ads can show, in what order, and at what price for one opportunity. Google Ads and Meta both run auctions. They publish different ranking inputs. Do not treat them as one formula. Use auction diagnostics in the
Ad Rank is Google Ads' auction-time calculation of whether an ad may show and where it ranks among eligible ads. It is not a stored 1-to-10 score. Google does not publish a numeric equation. Do not write bid times Quality Score as the current formula. Write the next paid search