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Domains 06 · 5 min

Attach a custom domain

Replace the workers.dev URL with your own domain in a few clicks. Cloudflare provisions SSL and the CDN automatically.

Domains modal with the Add domain field and the Primary toggle

  1. Open Domains

    On the websites grid, click the globe icon on the website card. The Domains modal slides in.

  2. Add a hostname

    Click Add and type a hostname (e.g. example.com). The domain must already live on your Cloudflare account — Lettle does not transfer DNS for you.

  3. Sync to Cloudflare

    Lettle creates the route on your account and Cloudflare provisions SSL automatically. The status pill turns green when ready.

  4. Mark it primary

    Use the Primary toggle on the new domain row. The site's public URL switches to it everywhere in Lettle.

Tip The workers.dev preview URL stays alive even after you add a custom domain — handy for QA and for sharing private builds.