This measures the amount of share of measurable brand awareness one company has compared to competitors. In terms of digital advertising, this typically refers to the number of ad units or ad impressions a company has on a given site. For example, on SDxCentral a roadblock ad gives one company all three purchasable ad units (100% SoV) on a page. In another example a company may purchase all ad units on all pages that meet a certain criteria, such as pages about SD-WAN.