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Custom domains

Replace your-name.app.seldonframe.com with www.yourbiz.com. SSL is automatic, takes 5 minutes.

Setup

1

Add the domain in SeldonFrame

Settings → Domains → "Add domain." Type www.yourbiz.com. SeldonFrame gives you the DNS records to add.
2

Add the DNS records at your registrar

Two records — a CNAME for www and an A record for the apex (root) domain pointing at our edge IP. Example:
www    CNAME    cname.vercel-dns.com.
@      A        76.76.21.21
Exact records depend on your hosting setup — the page in step 1 shows the exact values for your domain.
3

Wait for DNS to propagate

Usually under 5 minutes, sometimes up to an hour. The Domains page shows a green check when verification succeeds.
4

SSL is automatic

Once DNS verifies, an SSL certificate is provisioned through Let's Encrypt automatically. Your site is HTTPS-only — there's no toggle for HTTP.

Apex vs www

We recommend using www.yourbiz.com as your primary and redirecting the apex (yourbiz.com) to it. This is more reliable than apex-as-primary because of how DNS handles A records vs CNAMEs at root. Both will work, but www-primary is less likely to have edge cases.

What works at your custom domain

  • All your public pages (landing pages, services, blog).
  • Your booking pages.
  • Your forms (when embedded as iframes from external sites, the iframe URL becomes your custom domain).
  • The chatbot embed snippet — works the same as on the subdomain.

Subdomain still works

Your your-name.app.seldonframe.com subdomain stays live as a backup, even after you set up a custom domain. Useful for testing.

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