> For the complete documentation index, see [llms.txt](https://docs.dnscontrol.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.dnscontrol.org/language-reference/domain-modifiers/srv.md).

# SRV

`SRV` adds a [Service locator record](https://www.rfc-editor.org/rfc/rfc2782) to a domain. The name should be the relative label for the record.

Priority, weight, and port are ints.

{% code title="dnsconfig.js" %}

```javascript
D("example.com", REG_MY_PROVIDER, DnsProvider(DSP_MY_PROVIDER),
  // Create SRV records for a a SIP service:
  //               pr  w   port, target
  SRV("_sip._tcp", 10, 60, 5060, "bigbox.example.com."),
  SRV("_sip._tcp", 10, 20, 5060, "smallbox1.example.com."),
);
```

{% endcode %}