> 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/a.md).

# A

`A` adds an [IPv4 Address record](https://www.rfc-editor.org/rfc/rfc1035) to a domain. The name should be the relative label for the record. Use `@` for the domain apex.

The address should be an IP address, either a string, or a numeric value obtained via [IP](/language-reference/top-level-functions/ip.md).

Modifiers can be any number of [record modifiers](https://docs.dnscontrol.org/language-reference/record-modifiers) or JSON objects, which will be merged into the record's metadata.

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

```javascript
D("example.com", REG_MY_PROVIDER, DnsProvider(DSP_MY_PROVIDER),
  A("@", "1.2.3.4"),
  A("foo", "2.3.4.5"),
  A("test.foo", IP("1.2.3.4"), TTL(5000)),
  A("*", "1.2.3.4", {foo: 42}),
);
```

{% endcode %}