Ad Inventory refers to the ad space available on a website, app, or platform that can be sold to advertisers. This inventory includes various formats, such as display banners, video ads, and native ads. For publishers, managing ad inventory efficiently is key to maximizing revenue.

Inventory value is influenced by factors like audience demographics, engagement levels, and placement quality. By optimizing ad inventory and working with reliable demand sources, publishers can increase monetization potential and attract premium advertisers.