---
description: Key concepts behind Privacy Proxy, including MASQUE protocols, deployment architectures, and privacy-preserving authentication.
title: Concepts
image: https://developers.cloudflare.com/og-docs.png
---

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# Concepts

Last updated Aug 24, 2026|Copy as Markdown| [View as Markdown](https://0f4bf0fb.previews.developers.cloudflare.com/privacy-proxy/concepts/index.md)| [Agent setup](https://0f4bf0fb.previews.developers.cloudflare.com/agent-setup/)

Understand the key concepts behind Privacy Proxy, including how the protocol works, deployment architectures, and privacy-preserving authentication.

- [How Privacy Proxy works](https://0f4bf0fb.previews.developers.cloudflare.com/privacy-proxy/concepts/how-it-works/)
- [Deployment models](https://0f4bf0fb.previews.developers.cloudflare.com/privacy-proxy/concepts/deployment-models/)
- [Authentication](https://0f4bf0fb.previews.developers.cloudflare.com/privacy-proxy/concepts/authentication/)
- [Geolocation](https://0f4bf0fb.previews.developers.cloudflare.com/privacy-proxy/concepts/geolocation/)

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