Static Sites: Custom Domains

Add your own domain to any static site on a paid plan (Starter or Pro). Each custom domain gets automatic TLS via Let's Encrypt.

Prerequisites

• A static site on a Starter or Pro plan
• Access to your domain's DNS settings

Domain limits

Adding a custom domain

1. Navigate to your site detail page
2. Click the Domains tab
3. Click Add Domain
4. Enter your domain (e.g., www.example.com)

Step 1: Verify domain ownership

After adding a domain, you must verify ownership by adding a DNS TXT record at your DNS provider.

DNS TXT record

Once the record is in place, click Verify in the dashboard. DNS propagation typically takes a few minutes but can take up to 24 hours.

Verification statuses

Step 2: Point your domain

After verification, create a DNS record pointing your domain to the static site.

For subdomains (recommended)

Create a CNAME record:

www.example.com  CNAME  {slug}.pages.danubedata.ro

For root domains (apex)

Root domains (example.com without www) cannot use CNAME records. Depending on your DNS provider:

• Cloudflare — Use a CNAME with proxy enabled (flattened automatically)
• Route53 — Use an ALIAS record
• Other providers — Check if your provider supports ALIAS, ANAME, or CNAME flattening

Step 3: TLS certificate

Once the CNAME (or equivalent) record is active, a TLS certificate is provisioned automatically via Let's Encrypt. This typically takes 1-2 minutes.

TLS statuses

Certificates renew automatically before expiration.

Setting a primary domain

You can designate any verified domain as the primary domain:

1. Go to the Domains tab
2. Click the Set Primary button next to the domain

The primary domain is used as the canonical URL for your site.

Removing a domain

1. Go to the Domains tab
2. Click Delete next to the domain you want to remove

The domain's Ingress and TLS certificate are cleaned up automatically.

Troubleshooting

Verification keeps failing

• Confirm the TXT record name is exactly _danubedata-verify.your-domain.com (not just _danubedata-verify)
• Some DNS providers automatically append the domain — in that case, enter only _danubedata-verify as the name
• Use a DNS lookup tool to confirm the record is visible: dig TXT _danubedata-verify.your-domain.com
• Wait for DNS propagation and retry

TLS certificate not provisioning

• Ensure the CNAME record is active and resolves correctly
• Check that no CAA records on your domain block Let's Encrypt (letsencrypt.org)
• If using Cloudflare, ensure the proxy is enabled or use Full (Strict) SSL mode

Domain shows a certificate error

• The TLS certificate may still be provisioning — check the TLS status in the dashboard
• Clear your browser cache or try an incognito window
• Verify the CNAME points to the correct {slug}.pages.danubedata.ro address

Next steps

• Static Sites overview — Full feature reference
• Static Sites quick start — Deploy your first site
• Git deployments — Webhooks and auto-deploy

Questions? Contact support at support@danubedata.ro