---
title: domainName
framework: networkextension
role: symbol
role_heading: Instance Property
path: networkextension/nednssettings/domainname
---

# domainName

The primary domain of the tunnel.

## Declaration

```swift
var domainName: String? { get set }
```

## See Also

### Accessing DNS properties

- [servers](networkextension/nednssettings/servers.md)
- [searchDomains](networkextension/nednssettings/searchdomains.md)
- [matchDomains](networkextension/nednssettings/matchdomains.md)
- [matchDomainsNoSearch](networkextension/nednssettings/matchdomainsnosearch.md)
- [dnsProtocol](networkextension/nednssettings/dnsprotocol.md)
- [NEDNSProtocol](networkextension/nednsprotocol.md)