Custom Domain is fully managed infrastructure that lets SaaS platforms offer custom domains to their end users without sending anyone into a DNS panel. The customer taps one button; Custom Domain fingerprints their DNS provider, connects via OAuth or a scoped token, writes the correct records, verifies ownership, and issues HTTPS automatically.
It handles the parts teams underestimate: apex domains that cannot take a CNAME, multi-tenant TLS across thousands of customer hostnames, on-demand certificate issuance and renewal, and configuration drift months after setup. Records covered include A, CNAME, TXT, MX, SPF, and DKIM across apex, www, subdomains, and wildcards. 63+ DNS providers are auto-configured, including Cloudflare, GoDaddy, Namecheap, Amazon Route 53, Google Cloud DNS, Azure DNS, DigitalOcean, Vercel, and Netlify.
Serve from the built-in reverse-proxy edge, or have Custom Domain verify and hand DNS back to your own infrastructure. Drift monitoring re-checks every hour and re-issues certificates on change. Developers get a REST API, typed SDKs, a drop-in widget, webhooks, and an MCP server so AI agents can provision domains directly.
Built for site builders, e-commerce platforms, creator tools, white-label agencies, and AI products. Pricing is flat-tier with included volume: no metering and no end-of-month surprises. The free Starter tier covers 10 domain connections per year with no credit card required. SOC 2, ISO 27001 (2022), and GDPR compliant.
