How do I connect a custom domain to my app?

Connecting a custom domain (e.g. app.yourcompany.com) makes your app feel professional and on-brand. Custom domains are available on paid plans.

Prerequisites

• You must own the domain (or subdomain) you want to use
• You must have access to your DNS provider (GoDaddy, Namecheap, Cloudflare, Google Domains, Route 53, etc.)
• Custom domains are available on paid plans

The Domain tab in Manage App Settings. Your default URL is shown at top; add a custom domain below.

Step 1: Open the Domain settings

There are two ways to get to the Domain settings:

1. Quick way: Click the widget (blue pencil icon at the bottom-left corner) → select Deploy Your App. This redirects you directly to the Domain section of Manage App Settings.
2. Alternative: Click the widget → Manage App Settings → go to the Domain tab.

Step 2: Add your custom domain

On the Domain page:

1. Enter your custom domain (e.g. app.yourcompany.com) without http:// or https://
2. Click Add Domain
3. Fuzen will display the DNS instructions you need to follow

Step 3: Add the CNAME record at your DNS provider

Log in to your domain registrar's DNS panel and add a new record:

Step 4: Wait for DNS propagation and verification

DNS changes take 5 minutes to 24 hours to spread worldwide. Most users see it within an hour. The Domain page in Manage App Settings shows the verification status — check back after adding your DNS records.

To check propagation status: open dnschecker.org and enter your custom domain.

For apex domains (yourcompany.com without www)

CNAME records cannot exist on apex domains (DNS standard limitation). Use a subdomain like app.yourcompany.com instead, or if your DNS provider supports CNAME flattening or ALIAS records (Cloudflare, Route 53), use that. Otherwise, contact hello@fuzen.io for guidance.