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Dotlet is the infrastructure layer behind custom domains. Instead of building a registrar integration, a DNS system, and SSL automation from scratch, you call one API. Use Dotlet to let your customers bring, or buy, a domain, connect it to their account, and get a working, secure URL, without ever leaving your product.

What Dotlet handles for you

Domain search

Check availability and help customers find and register a domain by keyword.

Domain provisioning

Automatically attach a customer’s domain to their account in your platform.

DNS management

Create and manage DNS records through an API; no manual zone editing.

SSL automation

Provision HTTPS certificates for every customer domain and handle renewals automatically.
None of this requires a registrar relationship, a DNS provider account, or a certificate authority integration on your side. Dotlet is the layer between your product and that infrastructure.

Built for platforms with many customer domains

Dotlet is built for products where domains aren’t a one-off setting, but a core part of the experience — one domain per customer, at scale.

Website and no-code builders

Let customers launch on their own domain without leaving your builder.

Multi-tenant SaaS platforms

Give every tenant a custom domain instead of a shared subdomain.

Hosting platforms

Offer domain registration and DNS as part of your hosting product.

Agencies building SaaS products

Ship custom-domain support without adding a registrar integration to your roadmap.

White-label by default

Every domain workflow (search, purchase, DNS setup, renewal) can run entirely inside your product. Customers see your brand, not Dotlet’s. Use the hosted checkout to embed a pre-built flow in minutes, or call the API directly for full control over the UI.

Get started

Quickstart

Check a domain’s availability and register it in under 10 minutes.

Authentication

Generate an API key and authenticate your first request.

Embed hosted checkout

Drop a scoped, white-labeled domain flow into your product.

API Reference

Explore every endpoint, parameter, and response shape.