# Regions

Services and addons are provisioned in a region. List the regions available to your account and pick one at create time.

## List regions

```bash
lizard regions
lizard regions --json
```

## Choose a region

Pass `--region <code>` when creating a service or addon:

```bash
lizard add -r your-org/your-app --region <code>
lizard add postgres --region <code>
lizard up --region <code>
```

If you don't specify a region, the platform uses the project's default.

> **Co-locate stateful resources.** Put a service and the addons it talks to (Postgres, Redis, S3) in the **same region** to keep latency low and avoid cross-region data charges.

## Generated domains

Each service gets a generated domain on `*.onlizard.com` with automatic TLS, regardless of region. Object storage served from an [S3 addon](https://lizard.build/docs/addons/storage) uses a region-scoped gateway host (`s3-<region>.onlizard.com`). To attach your own hostname, see [Networking](https://lizard.build/docs/networking).