subdomain.toSubscription
Custom domains for SaaS, without the infrastructure
to lets SaaS companies offer customer-owned domains without operating the DNS, certificate and routing infrastructure themselves.
It verifies DNS, provisions and renews TLS certificates, and securely routes HTTPS traffic to your application through one API, a dashboard, SDKs, an embeddable setup widget and signed webhooks.
🚫 The problem subdomain.to solves
Adding customer-owned domains forces SaaS teams to build and operate DNS verification, TLS issuance and renewal, secure host routing, lifecycle state, retries and customer support tooling.
to packages that operational burden behind one integration.
✅ How subdomain.to works
Create an HTTPS destination, then add each customer domain through the API or dashboard.
to returns the exact DNS record to configure, monitors verification, issues the certificate and activates routing.
Your application keeps the original host information for tenant resolution, while status APIs and signed webhooks expose every lifecycle stage.
Key Features
- Automated DNS verification and guided customer setup
- Managed TLS certificate issuance and renewals
- Secure HTTPS routing with APIs and signed webhooks
Founder's Story
"to after seeing how a seemingly small SaaS feature turns into an ongoing infrastructure commitment: DNS instructions, asynchronous verification, certificate issuance and renewals, strict multi-tenant routing, retries and support visibility."
"The goal is to make that full lifecycle a dependable product primitive instead of another bespoke system every SaaS team must maintain."
Do you use subdomain.to?
Reviews
"Reviews praise subdomain.to for saving time and simplifying frontend work with a broad set of high‑quality, free components. Developers highlight smooth React and Next.js use..."
20% off the first 6 month
Best For
- SaaS founders
- platform engineers
- developer teams and product teams adding custom domains to multi-tenant applications.