# Content Cache Operators > Documentation for the Content Cache charms, Juju operators that deploy and manage a static web content cache with NGINX on virtual machines. 2026 ## Pages in this subsection - [Explanation](https://canonical.com/juju/docs/content-cache-charms/latest/explanation/index.html.md): Explanation of the Content Cache Operators design, architecture, and security. - [Caching behavior](https://canonical.com/juju/docs/content-cache-charms/latest/explanation/caching-behavior/index.html.md): Explanation of how the Content Cache charm caches static content, including cache miss and hit flow, expiry, eviction, and large-file considerations. - [Charm design and how it works under the hood](https://canonical.com/juju/docs/content-cache-charms/latest/explanation/charm-design/index.html.md): Explanation of the Content Cache charm's design decisions and how they affect caching behavior, memory usage, failover, and backend protocols. - [Security](https://canonical.com/juju/docs/content-cache-charms/latest/explanation/security/index.html.md): Explanation of the security design decisions in the Content Cache charm, including TLS, backend authentication, access control, and cached data risks. ## Optional - [Top-level llms.txt](https://canonical.com/juju/docs/content-cache-charms/latest/llms.txt): Complete documentation index.