# What is a walled garden?

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**Category:** Privacy & Tech
**URL:** https://www.cookieyes.com/knowledge-base/privacy-tech/what-is-a-walled-garden/

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**A walled garden is a controlled digital environment where the service provider maintains complete authority over the ecosystem, including its information, features, and permissions. **In the digital marketing landscape, walled gardens include platforms such as Google, Meta (Facebook/Instagram), Amazon, and TikTok, which accumulate and maintain extensive [first-party user data.](https://www.cookieyes.com/knowledge-base/cookies-101/what-is-first-party-data/)
Marketing professionals can leverage this data for precision advertising but must operate exclusively within the platform's boundaries. Essential elements of walled gardens include:

- **Restricted access:** Marketing teams cannot extract or fully utilise the user information gathered by the platform.
- **Self-contained ecosystem: **These networks handle everything from campaign targeting to performance metrics internally.
- **Dependence on first-party data:** They utilise their own data collection rather than external sources (like third-party cookies).
- **Limited transparency:** Advertisers receive minimal insight into data processing or advertisement optimisation methods.

Though walled gardens provide sophisticated targeting capabilities, their closed structure may create advertiser reliance and restrict multi-platform campaign execution.