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---

title: Change domain or subdomain description: Learn how to change your Clerk production instance's domain or subdomain.

Learn how to change your Clerk production instance's domain or subdomain.

[!WARNING] You cannot change the domain of the development instance of your Clerk application.

Change domain

1. Update your production domain in two ways:
   • the Clerk Dashboard
   • the Backend API
2. Once you make the change to your domain, you will need to update the following:
   • Update DNS records
   • Generate new SSL certificates
   • Update your Publishable Key
   • If using social connections, update the settings with your social connections so that the redirect URL they are using is correct.
   • If using JWT templates, update JWT issuer and JWKS Endpoint in external JWT SSO services.

Update your domain via Clerk Dashboard

To update your production domain in the Clerk Dashboard:

1. In the navigation sidenav, select Domains.
2. Scroll to find the Change domain setting.

Update your domain via Backend API

To update your production domain using the Backend API{{ target: '_blank' }}, you will need to make a POST request to the change_domain endpoint. You will need to provide your new domain in the request body.

1. Copy the following cURL command.

<SignedIn> 2) Your Secret Key is required to authenticate the request. It is injected into the cURL command after `Authorization`. However, you can also find it on the [**API keys**](https://dashboard.clerk.com/~/api-keys) page in the Clerk Dashboard. </SignedIn> <SignedOut> 2. Your Secret Key is required to authenticate the request. - Navigate to the [Clerk Dashboard](https://dashboard.clerk.com/~/api-keys) and sign in. - In the navigation sidenav, select **API keys** to copy your Secret Key. - Paste your Secret Key into the cURL command after `Authorization`, replacing `sk_...`. </SignedOut>

3. Replace YOUR_PROD_URL with your new production domain.

curl -XPOST -H 'Authorization: {{secret}}' -H "Content-type: application/json" -d '{
"home_url": "YOUR_PROD_URL"
}' 'https://api.clerk.com/v1/instance/change_domain'

For more information on how to update your instance settings using the Backend API, see the Backend API reference{{ target: '_blank' }}.

Update your Publishable Key

After changing your domain, a new Publishable Key will be automatically generated for your application. You need to update your environment variables with this new key and redeploy your application. You can find your Publishable Key on the API keys page in the Clerk Dashboard.

[!NOTE] Failing to update your Publishable Key will result in Clerk failing to load.

Set, change, or remove subdomain

To set, change, or remove a subdomain for your production instance:

1. Navigate to the Clerk Dashboard.
2. Scroll to the Change subdomain section where you can set, change, or remove your subdomain. This section will only appear if you have a subdomain configured for your instance.

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