Custom domain

• Web Browser
• Mobile App

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Automatic setup (default)

Rocket uses an automated flow to log in to your domain provider and configure DNS automatically with your permission. This works for supported providers.

1

Open the Production tab in the Launch panel

Click the Launch button in the top-right corner of your project, then click the Production tab.

2

Select a version and enter your domain

Choose which version of your app to publish from the version dropdown. Once you select a version, type your domain in the Custom domain field (for example, example.com) and click Next.

Once you publish on a version, you can only move forward to newer versions. To go back to an earlier version, you need to unpublish and publish again from that version.

3

Set up the Production Environment

Rocket prompts you to configure your Production Environment. Click Setup now to add any required environment variables. If you have no environment variables to add, click Skip & continue.

4

Add environment variables and click Done

Add your required environment variables in the Production environment settings, then click Done to continue.

5

Continue with automatic setup

Rocket opens a popup explaining that it will configure your domain automatically. Click Continue.

6

Authorize with your domain provider

Rocket shows a login screen for your domain provider. Enter your credentials and click Continue to grant one-time permission to configure DNS.

7

Confirm the DNS update

Your provider shows the existing DNS records and the new ones Rocket wants to add. Review them and click Okay, continue to approve the change.

8

Done

Your domain is confirmed as configured. Click Done. DNS propagation can take up to 48 hours, after which your app is live at your custom domain.

Once live, the Launch panel shows your domain URL. You can click it to open your app.

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Manual setup (fallback)

Use this method if automatic setup is not available for your provider or did not complete successfully. Rocket shows you the exact DNS records and you add them directly in your domain provider’s dashboard.

1

Open the Production tab and select a version

Click the Launch button, select the Production tab, choose your version, enter your domain, and click Next. Complete the Production Environment step as described above.

2

Switch to manual setup

If automatic setup did not work or your provider is not supported, click Go to our manual setup on the automatic setup screen. Rocket shows you the exact DNS records to add.

Remove any existing A and AAAA records for your domain before adding the new ones. Conflicting records will prevent your domain from connecting.

Copy each record (Type, Host Name, Required Value). In a new browser tab, open your domain provider’s DNS settings and add them exactly as shown.

3

Confirm you have added the records

Once you have added all records in your provider’s dashboard, click I have added all records above to my domain’s provider in Rocket. Rocket starts monitoring for the DNS changes.

DNS propagation can take up to 48 hours. Once Rocket detects the records, your domain goes live automatically.

1

Open the More tab

Open your app in the Rocket mobile app and tap the More tab at the bottom of the screen.

2

Select Launch on custom domain

In the settings modal, tap Launch on custom domain.

3

Add your domain

Tap + Add domain, type the domain you own (for example, example.com), and tap Add Domain.Rocket adds the domain to your project and shows the DNS records you need.

4

Update DNS settings at your domain provider

Copy the DNS records that Rocket shows you.

Open your domain provider’s dashboard (you may need a web browser for this step) and add the records exactly as shown.What to add:

• Root domains (e.g., example.com): Add two A records, one with host @ (root) and one with host www, both pointing to the IP address provided by Rocket.
• Subdomains (e.g., app.example.com): Add one A record with the subdomain as the host (e.g., app), pointing to the IP address provided by Rocket.

5

Verify your domain

Return to the Rocket mobile app and tap Refresh next to your domain. The status shows Verification in process at first.When Rocket detects the correct DNS records, the status changes to Live. Your app is now accessible at your custom domain.

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Fix conflicting DNS records

1. Go to dnschecker.org, enter your domain, and select A as the record type.
2. If you see multiple different IP addresses, log in to your domain provider’s dashboard and remove any A records that do not point to the IP address Rocket provided.
3. Wait up to 24 hours for the changes to propagate, then check the domain status in Rocket again.

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What’s next?