In 2022, Amazon generated a staggering $38 billion through its Amazon Ads service, revealing the immense financial power of digital advertising's closed ecosystems. This revenue stream confirms advertisers' deep reliance on these platforms to reach consumers. The sheer scale of this operation solidifies the market dominance wielded by a handful of tech giants.
These platforms, often called walled gardens, promise unparalleled reach and advanced targeting capabilities. However, they simultaneously restrict advertisers' access to granular data and control over campaign measurement. This creates a fundamental tension for marketers.
As these powerful platforms consolidate control over user data and ad inventory, advertisers will likely face increasing costs and a greater challenge in achieving independent, cross-platform attribution and optimization. This dependency erodes their control and profitability.
What Exactly Are Walled Gardens in Advertising?
A walled garden in advertising refers to a closed digital platform where advertisers have limited access to user data and restricted control over how to measure success, according to AppsFlyer. These environments operate as self-contained digital ecosystems, controlling their own data, technology, and ad inventory.
Tech giants like Google, Meta, and Amazon run these closed digital ecosystems, limiting data sharing with outsiders, reports Improvado. These three companies form a 'triopoly' due to their dominant market position. This structure means the platform dictates the rules for advertisers, fundamentally reshaping campaign strategy.
How Walled Gardens Control Data, Tools, and Insights
Advertisers within a walled garden must often use the platform's proprietary tools for campaign execution. This includes specific data management platforms (DMP), demand-side platforms (DSP), and dynamic creative optimization (DCO) to run campaigns effectively, states Publift. This mandates deep reliance on the platform's infrastructure.




