Instant Custom Subdomains

Point wildcard DNS to Subdomain. Register subdomains via simple API. Proxy to any backend instantly.

Get Started → Admin Panel

Why Subdomain?

Multi-tenant subdomain proxy for developers. Self-hosted, API-first, zero-config.

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API Keys & Tenants

Create tenants with unique API keys. Each manages their own subdomains.

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Instant Proxying

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Docker Ready

One-command deploy with Caddy for HTTPS. SQLite persistent data.

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Secure & Scalable

Basic auth admin, API key auth, production-ready Express + SQLite.

Simple API

POST /api/v1/register-subdomain
Headers: X-API-Key: your_key
Body: {
  "subdomain": "career",
  "target_url": "https://your-backend.com"
}

Response: {
  "success": true,
  "proxy_url": "https://career.yourdomain.com"
}

Create API Key →

Try Demo

Base Domain: froste.eu

API Key: froste123