Bun implements the `node:dns` module.

```ts
import * as dns from "node:dns";

const addrs = await dns.promises.resolve4("bun.sh", { ttl: true });
console.log(addrs);
// => [{ address: "172.67.161.226", family: 4, ttl: 0 }, ...]
```

<!--
## `Bun.dns` - lookup a domain
`Bun.dns` includes utilities to make DNS requests, similar to `node:dns`. As of Bun v0.5.0, the only implemented function is `dns.lookup`, though more will be implemented soon.
You can lookup the IP addresses of a hostname by using `dns.lookup`.
```ts
import { dns } from "bun";
const [{ address }] = await dns.lookup("example.com");
console.log(address); // "93.184.216.34"
```
If you need to limit IP addresses to either IPv4 or IPv6, you can specify the `family` as an option.
```ts
import { dns } from "bun";
const [{ address }] = await dns.lookup("example.com", { family: 6 });
console.log(address); // "2606:2800:220:1:248:1893:25c8:1946"
```
Bun supports three backends for DNS resolution:
- `c-ares` - This is the default on Linux, and it uses the [c-ares](https://c-ares.org/) library to perform DNS resolution.
- `system` - Uses the system's non-blocking DNS resolver, if available. Otherwise, falls back to `getaddrinfo`. This is the default on macOS, and the same as `getaddrinfo` on Linux.
- `getaddrinfo` - Uses the POSIX standard `getaddrinfo` function, which may cause performance issues under concurrent load.

You can choose a particular backend by specifying `backend` as an option.
```ts
import { dns } from "bun";
const [{ address, ttl }] = await dns.lookup("example.com", {
  backend: "c-ares"
});
console.log(address); // "93.184.216.34"
console.log(ttl); // 21237
```
Note: the `ttl` property is only accurate when the `backend` is c-ares. Otherwise, `ttl` will be `0`.
This was added in Bun v0.5.0. -->
ependabot/go_modules/google.golang.org/api-0.184.0</option>
<option value='dependabot/go_modules/k8s-io-95614c8192'>dependabot/go_modules/k8s-io-95614c8192</option>
<option value='fallthrough'>fallthrough</option>
<option value='master'>master</option>
<option value='superq/go1.22'>superq/go1.22</option>
<option value='superq/refactor_pbutil'>superq/refactor_pbutil</option>
<option value='torrent'>torrent</option>
<option value='traffic'>traffic</option>
</select> <input type='submit' value='switch'/></form></td></tr>
<tr><td class='sub'>Unnamed repository; edit this file 'description' to name the repository.</td><td class='sub right'></td></tr></table>
<table class='tabs'><tr><td>
<a href='/ansg191/coredns/about/?h=v1.1.4'>about</a><a href='/ansg191/coredns/?h=v1.1.4'>summary</a><a href='/ansg191/coredns/refs/?h=v1.1.4'>refs</a><a class='active' href='/ansg191/coredns/log/plugin/pkg/tls?h=v1.1.4&amp;follow=1'>log</a><a href='/ansg191/coredns/tree/plugin/pkg/tls?h=v1.1.4'>tree</a><a href='/ansg191/coredns/commit/plugin/pkg/tls?h=v1.1.4&amp;follow=1'>commit</a><a href='/ansg191/coredns/diff/plugin/pkg/tls?h=v1.1.4&amp;follow=1'>diff</a></td><td class='form'><form class='right' method='get' action='/ansg191/coredns/log/plugin/pkg/tls'>
<input type='hidden' name='h' value='v1.1.4'/><select name='qt'>
<option value='grep'>log msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/ansg191/coredns/log/?h=v1.1.4&amp;follow=1'>root</a>/<a href='/ansg191/coredns/log/plugin?h=v1.1.4&amp;follow=1'>plugin</a>/<a href='/ansg191/coredns/log/plugin/pkg?h=v1.1.4&amp;follow=1'>pkg</a>/<a href='/ansg191/coredns/log/plugin/pkg/tls?h=v1.1.4&amp;follow=1'>tls</a> (<a href='/ansg191/coredns/log/plugin/pkg/tls?h=v1.1.4'>unfollow</a>)</div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/ansg191/coredns/log/plugin/pkg/tls?h=v1.1.4&amp;showmsg=1&amp;follow=1'>Expand</a>)</th><th class='left'>Author</th><th class='left'>Files</th><th class='left'>Lines</th></tr>
<tr><td><span title='2018-06-18 11:16:56 +0100'>2018-06-18</span></td><td><a href='/ansg191/coredns/commit/plugin/backend_lookup.go?h=v1.1.4&amp;id=ab9efdcac4914b8bed486d32128ae00adba0dc90&amp;follow=1'>Follow up on #1867 : use one map in backend_lookup (#1869)</a></td><td><img src='//www.gravatar.com/avatar/25ba01eee5a1c0e007e810afe805766c?s=13&amp;d=retro' width='13' height='13' alt='Gravatar' /> Miek Gieben
</td><td>1</td><td><span class='deletions'>-32</span>/<span class='insertions'>+33</span></td></tr>
<tr><td><span title='2018-06-18 10:02:05 +0100'>2018-06-18</span></td><td><a href='/ansg191/coredns/commit/plugin/rewrite/README.md?h=v1.1.4&amp;id=6fbc1f8990601c322255f78476b281ba967dbd24&amp;follow=1'>Plugin/Rewrite - review documentation of "append" (#1877)</a></td><td><img src='//www.gravatar.com/avatar/85ef5ede2ac268872e757897d59a4021?s=13&amp;d=retro' width='13' height='13' alt='Gravatar' /> Francois Tur
</td><td>1</td><td><span class='deletions'>-2</span>/<span class='insertions'>+2</span></td></tr>
<tr><td><span title='2018-06-15 08:12:56 -0700'>2018-06-15</span></td><td><a href='/ansg191/coredns/commit/plugin/template/setup.go?h=v1.1.4&amp;id=177e32b62e1bd937317ec3fd7c7f3a8114c52d77&amp;follow=1'>plugin/forward: add REFUSED test (#1878)</a></td><td><img src='//www.gravatar.com/avatar/25ba01eee5a1c0e007e810afe805766c?s=13&amp;d=retro' width='13' height='13' alt='Gravatar' /> Miek Gieben
</td><td>10</td><td><span class='deletions'>-10</span>/<span class='insertions'>+62</span></td></tr>
<tr><td><span title='2018-06-15 07:37:22 +0100'>2018-06-15</span></td><td><a href='/ansg191/coredns/commit/plugin/forward/proxy.go?h=v1.1.4&amp;id=70c957d885a6c6b33a0828c680e451a9e3a3994a&amp;follow=1'>Plugin/Forward - autotune the dialTimeout for connection (#1852)</a></td><td><img src='//www.gravatar.com/avatar/85ef5ede2ac268872e757897d59a4021?s=13&amp;d=retro' width='13' height='13' alt='Gravatar' /> Francois Tur
</td><td>5</td><td><span class='deletions'>-52</span>/<span class='insertions'>+84</span></td></tr>
<tr><td><span title='2018-06-13 11:02:14 +0100'>2018-06-13</span></td><td><a href='/ansg191/coredns/commit/man/coredns.1?h=v1.1.4&amp;id=6f865a9de7d5ddc3daf52512016a5bbf72e3fb9a&amp;follow=1'>Run make -f Makefile.doc (#1875)</a></td><td><img src='//www.gravatar.com/avatar/25ba01eee5a1c0e007e810afe805766c?s=13&amp;d=retro' width='13' height='13' alt='Gravatar' /> Miek Gieben
</td><td>9</td><td><span class='deletions'>-71</span>/<span class='insertions'>+50</span></td></tr>
<tr><td><span title='2018-06-13 10:38:24 +0100'>2018-06-13</span></td><td><a href='/ansg191/coredns/commit/Makefile?h=v1.1.4&amp;id=d6288c25ba4d2ce06e9c7c2ac63fc6b01379a533&amp;follow=1'>Bump dns version to 1.0.8 (#1873)</a></td><td><img src='//www.gravatar.com/avatar/25ba01eee5a1c0e007e810afe805766c?s=13&amp;d=retro' width='13' height='13' alt='Gravatar' /> Miek Gieben
</td><td>1</td><td><span class='deletions'>-1</span>/<span class='insertions'>+1</span></td></tr>
<tr><td><span title='2018-06-12 14:54:37 +0100'>2018-06-12</span></td><td><a href='/ansg191/coredns/commit/test/file_upstream_test.go?h=v1.1.4&amp;id=26c41a0c177fbe89f1f81214634aed49790581f4&amp;follow=1'>plugin/file: fix local CNAME lookup (#1866)</a></td><td><img src='//www.gravatar.com/avatar/25ba01eee5a1c0e007e810afe805766c?s=13&amp;d=retro' width='13' height='13' alt='Gravatar' /> Miek Gieben
</td><td>5</td><td><span class='deletions'>-28</span>/<span class='insertions'>+83</span></td></tr>
<tr><td><span title='2018-06-11 19:23:25 -0700'>2018-06-11</span></td><td><a href='/ansg191/coredns/commit/plugin/pkg/dnsutil/dedup.go?h=v1.1.4&amp;id=6e466d509281953fdf0209a5b50611e89b4689ae&amp;follow=1'>Remove dnsutil.Dedup (#1867)</a></td><td><img src='//www.gravatar.com/avatar/25ba01eee5a1c0e007e810afe805766c?s=13&amp;d=retro' width='13' height='13' alt='Gravatar' /> Miek Gieben
</td><td>6</td><td><span class='deletions'>-61</span>/<span class='insertions'>+66</span></td></tr>
<tr><td><span title='2018-06-07 13:48:23 -0700'>2018-06-07</span></td><td><a href='/ansg191/coredns/commit/.github/PULL_REQUEST_TEMPLATE.md?h=v1.1.4&amp;id=58d69913639b7b210ed32afacb447ba53c7487a3&amp;follow=1'>Update the pr template (#1862)</a></td><td><img src='//www.gravatar.com/avatar/25ba01eee5a1c0e007e810afe805766c?s=13&amp;d=retro' width='13' height='13' alt='Gravatar' /> Miek Gieben
</td><td>1</td><td><span class='deletions'>-5</span>/<span class='insertions'>+1</span></td></tr>
<tr><td><span title='2018-06-07 16:21:17 +0100'>2018-06-07</span></td><td><a href='/ansg191/coredns/commit/plugin/pkg/replacer/replacer_test.go?h=v1.1.4&amp;id=18b11fc85156be8b027c61665c80e239324e2ebf&amp;follow=1'>Normalizing Response Duration in Log Plugin (#1860)</a></td><td><img src='//www.gravatar.com/avatar/d88558178af5dfa7a346c9a0f737a4f6?s=13&amp;d=retro' width='13' height='13' alt='Gravatar' /> Malcolm Akinje
</td><td>2</td><td><span class='deletions'>-1</span>/<span class='insertions'>+5</span></td></tr>
<tr><td><span title='2018-06-05 17:21:09 +0100'>2018-06-05</span></td><td><a href='/ansg191/coredns/commit/plugin/forward/proxy.go?h=v1.1.4&amp;id=751a08d6a2e3ace62e40ed8170015e7051d0020c&amp;follow=1'>plugin/forward: fix alignment for sync.Atomic (#1855)</a></td><td><img src='//www.gravatar.com/avatar/25ba01eee5a1c0e007e810afe805766c?s=13&amp;d=retro' width='13' height='13' alt='Gravatar' /> Miek Gieben
</td><td>1</td><td><span class='deletions'>-3</span>/<span class='insertions'>+3</span></td></tr>
<tr><td><span title='2018-06-05 17:20:38 +0100'>2018-06-05</span></td><td><a href='/ansg191/coredns/commit/Makefile.release?h=v1.1.4&amp;id=ec334014d73222981ef84667f0e82d04d1033537&amp;follow=1'>Update Makefile.release for docker image build (#1856)</a></td><td><img src='//www.gravatar.com/avatar/10c4cad3ba13f0378dbd67185314d3d4?s=13&amp;d=retro' width='13' height='13' alt='Gravatar' /> Yong Tang
</td><td>1</td><td><span class='deletions'>-15</span>/<span class='insertions'>+0</span></td></tr>
<tr><td><span title='2018-06-04 19:20:21 +0100'>2018-06-04</span></td><td><a href='/ansg191/coredns/commit/Dockerfile?h=v1.1.4&amp;id=a77d9834d867b44a7f10d1481916498332c586ff&amp;follow=1'>Docker: drop alpine (#1843)</a></td><td><img src='//www.gravatar.com/avatar/25ba01eee5a1c0e007e810afe805766c?s=13&amp;d=retro' width='13' height='13' alt='Gravatar' /> Miek Gieben
</td><td>1</td><td><span class='deletions'>-3</span>/<span class='insertions'>+6</span></td></tr>
<tr><td><span title='2018-06-02 20:28:56 +0100'>2018-06-02</span></td><td><a href='/ansg191/coredns/commit/test/plugin_dnssec_test.go?h=v1.1.4&amp;id=70a53e25c942d95de98e30d9f5f5636d0d315d25&amp;follow=1'>Fix presubmit (#1850)</a></td><td><img src='//www.gravatar.com/avatar/25ba01eee5a1c0e007e810afe805766c?s=13&amp;d=retro' width='13' height='13' alt='Gravatar' /> Miek Gieben
</td><td>2</td><td><span class='deletions'>-15</span>/<span class='insertions'>+15</span></td></tr>
<tr><td><span title='2018-06-02 11:48:39 -0700'>2018-06-02</span></td><td><a href='/ansg191/coredns/commit/plugin/test/helpers.go?h=v1.1.4&amp;id=22c0b30d5f7468c2477291419bee3e88dfba490c&amp;follow=1'>presubmit: Check errorf as well (#1845)</a></td><td><img src='//www.gravatar.com/avatar/25ba01eee5a1c0e007e810afe805766c?s=13&amp;d=retro' width='13' height='13' alt='Gravatar' /> Miek Gieben
</td><td>19</td><td><span class='deletions'>-52</span>/<span class='insertions'>+57</span></td></tr>