Custom domains
for your SaaS
DNS verification, SSL certificates, and traffic routing—fully automated. Your customers use their own domains. You ship features.
Free tier available • No credit card required • 5 min integration
Custom domains shouldn't take hours to build
Your users want app.theircompany.com. You want to ship features. We handle the DNS, SSL, and routing infrastructure so you don't have to.
fewer DNS support tickets with registrar-specific instructions your users can actually follow
to integrate-not weeks of wrestling with Cloudflare Workers and DNS configuration
P95 latency. Our proxy adds virtually no overhead to your request time
Everything you need
One API. Full automation. No infrastructure to manage.
Smart DNS verification
We detect GoDaddy, Cloudflare, Namecheap and 4 other registrars. Your users see step-by-step instructions they can actually follow.
Automatic SSL certificates
Let's Encrypt certificates issued and renewed automatically. Your customers never see "Not Secure" warnings.
Traffic routing
We route traffic from custom domains to your app with tenant headers. Works with any backend - Next.js, Rails, Django, anything.
Real-time webhooks
Get notified when domains verify or certificates issue. HMAC-signed payloads with automatic retries.
Simple REST API
Add a domain with one API call. No complex SDKs to learn. Integrates in 5 minutes.
Full dashboard
Monitor domains, certificates, and verification status. Debug issues instantly without digging through logs.
How it works
Three steps. Five minutes. Done.
User enters domain
Your customer types their domain. You call our API.
They configure DNS
We show registrar-specific instructions. Copy, paste, done.
We handle the rest
DNS verification, SSL, routing—all automatic.
// Add a custom domain
const domain = await domainflow.domains.create({
domain: 'app.customer.com',
tenant_id: 'tenant_123'
});
// That's it. We handle:
// ✓ DNS verification
// ✓ SSL certificate
// ✓ Traffic routing
// ✓ Webhook when readySimple, predictable pricing
One flat fee. Pay for what you use.
Free
Perfect for testing and side projects
- 3 domains included
- Automatic SSL certificates
- DNS verification
- Dashboard access
Pro
For production SaaS apps
+ $0.15 per domain after 10
- 10 domains included
- Everything in Free
- Webhooks & API access
- Priority email support
- Official SDK
Example pricing
Need 1000+ domains? Contact us for volume pricing.
Why not just use Cloudflare?
Cloudflare for SaaS is powerful but complex. Entri is enterprise-only. DomainFlow is the middle ground.
| DomainFlow | Cloudflare for SaaS | Entri | |
|---|---|---|---|
| Pricing | $25/mo + $0.15/domain | Free 100, then $0.10 | Enterprise only |
| Setup time | 5 minutes | Hours (Workers, DNS) | Weeks (sales + integration) |
| DNS instructions for users | — | ||
| Auto DNS config (OAuth) | Coming soon | — | |
| Self-serve signup | Sales call required | ||
| Best for | Startups & indie hackers | Teams with DevOps | Enterprise |
TL;DR: Cloudflare is cheaper at scale but complex. Entri handles DNS automatically but costs enterprise $$.
We're the simple option that works out of the box.
Ready to ship?
Stop building infrastructure. Start shipping features.
Start freeNo credit card required