Connect your own domain

Every app gets a system-generated address. Want something more presentable — or a real domain for customers? Both live under "More → Domain".

Option 1: a custom subdomain (free, about 30 seconds)

1. In the "Domain" tab, find "Custom subdomain";
2. Type a memorable name (lowercase letters, digits and dashes only; you'll be told if it's taken);
3. Click "Save" — it takes effect immediately and the address becomes yours.

Good for personal projects, sharing with friends, and quick demos.

Option 2: connect your own domain

1. In "Custom domain", enter your domain (e.g. example.com);
2. Click "Bind";
3. Add the two records shown on screen at your registrar (a CNAME and a TXT), then click "I've configured it, verify";
4. Wait for DNS to take effect (minutes to a few hours), then the app opens on your own domain.

No domain yet? The panel has a shortcut to register one on Cloudflare.

When a domain is required

Display ad networks — Google AdSense, Carbon, EthicalAds — require your own domain; the preview address won't pass review. Amazon Associates has no such requirement. If you plan to run the app seriously, bind a domain first.