# services.<name>.port

> Port the app listens on.

Port the app listens on. Services with a port get a generated domain unless `private`.

- **Type:** integer
- **Range:** 1 to 65535
- **Since:** manifest v1

## Example

```yaml
services:
  web:
    port: 3000
```

## See also

- [services](/docs/manifest/services/): all fields of `services`
- [guv.yaml reference](/docs/manifest/)