An ad network is a platform that connects advertisers with publishers, allowing them to buy and sell ad space on websites, apps, and other digital platforms. This network acts as a middleman, facilitating the buying and selling of ad inventory and providing a streamlined process for both parties. Ad networks use advanced targeting and tracking technologies to ensure that ads are displayed to the most relevant audience, maximizing the effectiveness of advertising campaigns. They offer a wide range of ad formats, including display ads, video ads, and native ads, giving advertisers the flexibility to choose the best format for their message. Ad networks play a crucial role in the digital advertising ecosystem, helping businesses reach their target audience and publishers monetize their content.