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Custom Domains

Roundrobin provides each deployment with a unique roundrobinapp.com URL, which allows you to preview the individual deploy before for example promoting it to production.

You can also use your own domain names to greatly personalize your project. With automatic SSL certificate provisioning and renewal, Roundrobin makes it easy to connect custom domains to your projects.

Adding a Custom Domain

  1. Navigate to your project in the dashboard
  2. Go to the Domains tab
  3. Click Add Domain
  4. Enter your domain name (e.g., app.example.com or example.com)
  5. Follow the DNS configuration instructions

DNS Configuration

After adding a domain, you need to configure your DNS records. Roundrobin provides the exact DNS records you need to add.

SSL certificates

Roundrobin automatically provisions and renews SSL certificates for your custom domains:

  • Automatic provisioning - SSL certificates are issued within minutes
  • Auto-renewal - Certificates are automatically renewed before expiration
  • Free SSL - All SSL certificates are included at no extra cost
  • Modern TLS - Support for TLS 1.2 and TLS 1.3

The certificates are provided by ZeroSSL.

Domain verification

Before SSL certificates can be issued, you need to verify domain ownership:

  1. Add the DNS records as instructed
  2. Wait for DNS propagation (typically 5-60 minutes)
  3. Click Verify in the Roundrobin dashboard
  4. SSL certificate will be automatically provisioned

Multiple domains

You can add multiple domains to a single project:

  • Primary domain - The main domain for your application
  • Additional domains - Redirect to primary or serve the same content
  • Subdomains - api.example.com, app.example.com, etc.

WWW domains

You can configure both example.com and www.example.com. We suggest always adding a www.example.com domain when using a root domain.

Commong configurations:

  • example.com → A record to Roundrobin IP address
  • www.example.com → CNAME to example.com

Troubleshooting

Domain not verifying

  • Check DNS records - Verify records are correct in your DNS provider
  • Wait for propagation - DNS changes can take up to 48 hours depending your TTL (Time To Live) settings
  • Check TTL - Lower TTL values propagate faster
  • Verify ownership - Ensure you have access to modify DNS records

Need Help?

Having trouble with custom domains? Contact our support team.

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