## Description Use the `chrome.dns` API for dns resolution.

## Permissions `dns`

## Availability Dev channel

To use this API, you must declare the `"dns"` permission in the [manifest](https://developer.chrome.com/docs/extensions/mv3/manifest). { "name": "My extension", ... "permissions": [ "dns" ], ... } > [!NOTE] > **Note:** This API is only available in [Chrome Dev](https://www.google.com/chrome/dev/). There are no foreseeable plans to move this API from the dev channel into Chrome stable. ## Usage The following code calls [`resolve()`](https://developer.chrome.com/docs/extensions/reference/api/dns#method-resolve) to retrieve the IP address of `example.com`. service-worker.js: const resolveDNS = async () => { let record = await chrome.dns.resolve('example.com'); console.log(record.address); // "192.0.2.172" }; resolveDNS(); > [!IMPORTANT] > **Key point:** Do not include the scheme or trailing slash in the hostname. For example, `https://example.com/` is invalid.
## Types ### ResolveCallbackResolveInfo #### Properties - address string optional A string representing the IP address literal. Supplied only if resultCode indicates success. - resultCode number The result code. Zero indicates success. ## Methods ### resolve() ```typescript browser.dns.resolve(   hostname: string, ): Promise ``` Resolves the given hostname or IP address literal. #### Parameters - hostname string The hostname to resolve. #### Returns - Promise\<[ResolveCallbackResolveInfo](https://developer.chrome.com/docs/extensions/reference/api/dns#type-ResolveCallbackResolveInfo)\> Promise that resolves when the resolution operation completes.