> ## Documentation Index
> Fetch the complete documentation index at: https://www.aptible.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Stacks

> Learn about using Stacks to deploy resources to various regions

![](https://mintcdn.com/aptible/MtH_goy23rOUOZd7/images/1-app-ui.png?fit=max\&auto=format\&n=MtH_goy23rOUOZd7\&q=85\&s=bd666044298866ac13ce9444a542ae26)

## Overview

Stacks are fundamental to the network-level isolation of your resources. Each Stack is hosted in a specific region and is comprised of [environments](https://www.aptible.com/docs/core-concepts/architecture/environments.md). Aptible offers two types of Stacks: [Dedicated Stacks](https://www.aptible.com/docs/core-concepts/architecture/stacks.md#dedicated-stacks) (isolated) and [Shared Stacks](https://www.aptible.com/docs/core-concepts/architecture/stacks.md#shared-stacks) (non-isolated).

Resources in different Stacks can only connect with each other with a [network integration.](https://www.aptible.com/docs/core-concepts/integrations/network-integrations.md) For example: Databases and Internal Endpoints deployed in a given Stack are not accessible from Apps deployed in other Stacks.

A Stack's underlying virtualized infrastructure (EC2 instances, private network, etc.) provides this network-level isolation.

## Dedicated Stacks (Isolated)

> [!NOTE]
>
> Dedicated Stacks are only available on [Production and Enterprise plans.](https://www.aptible.com/pricing)

Dedicated stacks are built for production [environments](https://www.aptible.com/docs/core-concepts/architecture/environments.md), are dedicated to a single customer, and provide four significant benefits:

* **Tenancy** - Dedicated stacks are isolated from other Aptible customers, and you can also use multiple Dedicated Stacks to architect the [isolation](https://www.aptible.com/docs/core-concepts/architecture/overview.md#what-kinds-of-isolation-can-aptible-provide) you require within your organization.
* **Availability** - Aptible's [Service Level Agreement](https://www.aptible.com/legal/service-level-agreement/) applies only to Environments hosted on a Dedicated stack. Dedicated stacks also support custom [maintenance windows](https://www.aptible.com/docs/core-concepts/reliability/maintenance.md).
* **Regulatory** - Aptible will sign a HIPAA Business Associate Agreement (BAA) to cover information processing in Environments hosted on a Dedicated stack.
* **Connectivity** - [Integrations](https://www.aptible.com/docs/core-concepts/integrations/network-integrations.md), such as VPN and VPC Peering connections, are available only to Dedicated stacks.
* **Security** - Dedicated stacks automatically come with a [suite of security features](https://www.aptible.com/secured-by-aptible), including encryption, DDoS protection, host hardening, and [intrusion detection](https://www.aptible.com/docs/core-concepts/security-compliance/hids.md), alleviating the need to worry about security best practices.

> [!TIP]
>
> Aptible offers self-hosted Dedicated Stacks as an Enterprise feature, running inside your own AWS account instead of Aptible's. See [Self-Hosted Stacks](https://www.aptible.com/docs/core-concepts/architecture/self-hosted.md) for details.

## Shared Stacks (Non-Isolated)

Stacks shared across many customers are called Shared Stacks. Use Shared Stacks for development, testing, and staging [Environments](https://www.aptible.com/docs/core-concepts/architecture/environments.md).

> [!WARNING]
>
> You can not host sensitive or regulated data with shared stacks.

## Supported Regions

![](https://mintcdn.com/aptible/RWSo_H5DBAoWcXSD/images/regions.png?fit=max\&auto=format\&n=RWSo_H5DBAoWcXSD\&q=85\&s=3ddaf8e8bbed083fb7f4dd7088a1e46b)

| Region | Available on Dedicated Stacks | Available on Shared Stacks |
| - | - | - |
| us-east-1 / US East (N. Virginia) | ✔️ | ✔️ |
| us-east-2 / US East (Ohio) | ✔️ | |
| us-west-1 / US West (N. California) | ✔️ | ✔️ |
| us-west-2 / US West (Oregon) | ✔️ | |
| eu-central-1 / Europe (Frankfurt) | ✔️ | ✔️ |
| sa-east-1 / South America (São Paulo) | ✔️ | |
| eu-west-1 / Europe (Ireland) | ✔️ | |
| eu-west-2 / Europe (London) | ✔️ | |
| eu-west-3 / Europe (Paris) | ✔️ | |
| ca-central-1 / Canada (Central) | ✔️ | ✔️ |
| ap-south-1 / Asia Pacific (Mumbai) | ✔️ | ✔️ |
| ap-southeast-2 / Asia Pacific (Sydney) | ✔️ | ✔️ |
| ap-northeast-1 / Asia Pacific (Tokyo) | ✔️ | |
| ap-southeast-1 / Asia Pacific (Singapore) | ✔️ | |

> [!TIP]
>
> A Stack's Region will affect the latency of customer connections based on proximity. For [VPC Peering](https://www.aptible.com/docs/core-concepts/integrations/network-integrations.md), deploy the Aptible Stack in the same region as the AWS VPC for both latency and DNS concerns.

## FAQ

> [accordion] How do I create or deprovision a dedicated stack?
>
> ### Read the guide
>
> > [card] [How to create and deprovison dedicated stacks](https://www.aptible.com/docs/create-dedicated-stack.md)

> [accordion] Does Aptible support multi-region setups for business continuity?
>
> Yes, this is touched on in our [Business Continuity Guide](https://www.aptible.com/docs/business-continuity.md). For more information about setup, contact Aptible Support.

> [accordion] How much do Dedicated Stacks cost?
>
> See our pricing page for more information: [https://www.aptible.com/pricing](https://www.aptible.com/pricing)

> [accordion] Can Dedicated Stacks be renamed?
>
> Dedicated Stacks cannot be renamed once created. To update the name of a Dedicated Stack, you create a new Dedicated Stack and migrate your resources to this new Stack. Please note: this does incur downtime.

> [accordion] Can my resources be migrated from a Shared Stack to a Dedicated Stack
>
> Yes, contact Aptible Support to request resources be migrated.