For the complete documentation index, see llms.txt. This page is also available as Markdown.

Custom domains

Replace your auto-generated subdomain with your own domain, with automatic SSL.

By default, every project is published at a subdomain of the platform. You can replace this with your own domain on any paid plan.

Before you start

You'll need:

  • A paid plan (Pro or above)

  • Access to your domain registrar's DNS settings

  • A successful deploy of the project you want to attach

Steps

1

Add your domain in the dashboard

Go to Project settings → Domains and click Add domain. Enter the domain or subdomain you want to use:

docs.yourcompany.com

The dashboard will show you the DNS record values you need.

2

Configure your DNS

Add a CNAME record pointing your subdomain at the platform:

Type:  CNAME
Name:  docs
Value: sites.example-platform.com
TTL:   3600

For an apex domain (e.g. yourcompany.com without a subdomain), you'll need an ALIAS or ANAME record instead — not all DNS providers support these. Check your provider's docs.

DNS changes can take up to 48 hours to propagate, but in practice most see them resolve within a few minutes.

3

Verify and activate

Return to Project settings → Domains and click Verify. Once verified, the platform will issue an SSL certificate automatically — usually within a couple of minutes.

When verification completes, your domain is live.

Multiple domains per project

You can attach multiple domains to a single project — useful for redirecting old URLs or supporting multiple regions:

domains:
  primary: docs.yourcompany.com
  redirects:
    - from: help.yourcompany.com
      to: docs.yourcompany.com
      status: 301

Troubleshooting

Verification keeps failing

Make sure there are no conflicting DNS records for the same subdomain. An existing A record will block the CNAME.

Also check that the value of your CNAME exactly matches the one shown in the dashboard — typos in domain names are very common.

SSL certificate not provisioning

SSL is issued after DNS verification succeeds. If it hasn't appeared after 30 minutes:

  1. Confirm your domain still verifies in the dashboard

  2. Check that your DNS provider isn't using CAA records that block our certificate authority

  3. Click Re-verify to trigger a fresh attempt

Browser shows "Your connection is not private"

This usually means the certificate hasn't been provisioned yet, or your browser cached an old certificate. Wait a few minutes, then try in an incognito window.

The domain works but redirects break

Redirect chains often get cached aggressively. Test in an incognito window or with curl -I to see what's actually being served, ignoring local cache.

Removing a domain

To remove a domain, go to Project settings → Domains, click the menu next to the domain, and select Remove.

Was this helpful?