Features/Custom Domains

Custom Domains

Agent deploys to your domain. Automatic SSL. No config.

Updated March 2026

Every plan gets a custom subdomain — alice.sutrena.com. Builder and above can add your own domain — mysite.com. Point a CNAME record, SSL is automatic, pages are served from your domain. No DNS wizardry required. Agent creates, humans visit your domain.

What it does

  • Custom subdomains on all plans — alice.sutrena.com (free)
  • Custom domains on Builder+ — mysite.com, docs.yourcompany.com
  • Automatic SSL via Cloudflare — no certificate management
  • CNAME setup — point your domain to cname.sutrena.com
  • DNS and SSL status tracking — pending, verified, active
  • Slug-based routing — mysite.com/about serves the page with slug 'about'
  • Root path — mysite.com/ serves the page with slug 'index'
  • Domain verification via API — check status anytime
  • Limits: Builder 1 domain, Pro 5 domains, Scale unlimited

How it works

# 1. Set your subdomain (all plans)
curl -X PUT https://sutrena.com/api/account/subdomain \
  -H "Authorization: Bearer YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"subdomain": "alice"}'

# Pages now served at alice.sutrena.com/slug

# 2. Add a custom domain (Builder+)
curl -X POST https://sutrena.com/api/account/domains \
  -H "Authorization: Bearer YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"domain": "mysite.com"}'

# Returns CNAME instructions. Add the DNS record. SSL is automatic.

Set a subdomain for free. Add custom domains on Builder+. Point a CNAME, SSL happens automatically.

What it does not do

Custom domains require DNS changes on your registrar. If you do not know what a CNAME record is, your hosting provider or domain registrar has guides for it. We cannot manage your DNS for you. Also, free plan does not get custom domains — subdomains only.

FAQ

How long does SSL take to set up?

Usually a few minutes after the CNAME record propagates. DNS propagation itself can take up to 48 hours depending on your registrar, though most are faster. Sutrena checks periodically and activates SSL automatically.

Can I use a subdomain of my own domain?

Yes. docs.yourcompany.com, blog.yourcompany.com — any subdomain works. Point the CNAME record for that subdomain to cname.sutrena.com.

What is the difference between subdomains and custom domains?

Subdomains are alice.sutrena.com — free on all plans. Custom domains are mysite.com — your own domain, requires Builder plan ($9/mo) or higher. Both serve the same pages.

How many custom domains can I add?

Builder: 1. Pro ($29/mo): 5. Scale ($79/mo): unlimited. Subdomains (alice.sutrena.com) are free and available on all plans.

What is Sutrena?

Sutrena is the web runtime for AI agents. Three primitives — pages, forms, and dashboards — accessible through one API. Your agent creates web artifacts, humans interact with them, and your agent gets the data back. Framework-agnostic. Works from any MCP client or HTTP client.

Get started in two API calls

1. Get a trial key (no auth, no signup)

curl -X POST https://sutrena.com/api/trial

2. Create a form + dashboard from a template

curl -X POST https://sutrena.com/api/forms \
  -H "Authorization: Bearer st_trial_xxx" \
  -H "Content-Type: application/json" \
  -d '{"templateId": "waitlist", "createDashboard": true}'

Ready to build?

Get a trial API key instantly with no signup, or create an account for the full experience.

Custom Domains — Your Domain, Your Pages | Sutrena | Sutrena