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enterprise.federated.computer/content/docs/enterprise/domains/why-3-domains-are-required.md

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---
weight: 174
title: "Why 3 Domains Are Required"
description: "The technical reason your account needs a minimum of three domains."
icon: "article"
date: "2025-05-27T00:00:00-00:00"
lastmod: "2025-05-27T00:00:00-00:00"
draft: false
toc: true
---
Federated Enterprise requires a minimum of **three domains** when you sign up, and this is a technical requirement of the platform — not an arbitrary constraint.
Each domain on your account needs its own SSL certificate to serve traffic securely. The platform provisions these certificates automatically, and three domains ensures there is enough capacity to cover all the certificates your environment needs to function correctly.
> **Note:** If you're unsure which domains to register, choosing the free Federated Domains option at checkout gets you a compliant, fully functional three-domain setup with no additional cost or configuration required.