How it works
Every app on Clouderized gets a default URL at username-appname.clouderized.com. Custom domains let you serve the same app from your own domain — HTTPS is handled automatically, no certificate management needed.
Add your domain in the portal
Enter the domain or subdomain you want to use in the Domains tab of your app.
Add a CNAME record
In your DNS provider, create a CNAME pointing your domain to the address shown in the portal.
Verify and you're live
Click Verify in the portal. Once DNS is confirmed, your domain is live with HTTPS.
Step 1 — Add your domain in the portal
Takes about 30 seconds
-
1
Open the Domains tab
Go to dash.clouderized.com → select your app → click Domains.
2Enter your domain
Type the domain you want to use (e.g.
app.example.comorexample.com) and click Add Domain.3Copy the CNAME target
The portal shows a CNAME address. Copy it — you'll need it in the next step.
Step 2 — Add a CNAME record in your DNS
Works with any DNS provider — Cloudflare, Namecheap, GoDaddy, Route53, etc.
Log in to your DNS provider and add a CNAME record for your domain pointing to the address you copied from the portal.
| Type | Name / Host | Value / Target | TTL |
|---|---|---|---|
| CNAME | app (or @ for root) | <CNAME from portal> | Auto |
app.example.com — set the Name to app and the Value to the CNAME from the portal.
www subdomain instead.
Step 3 — Verify and go live
DNS changes can take a few minutes to propagate — usually under 5 minutes, up to 24 hours in rare cases
Back in the portal Domains tab, click Verify next to your domain. The portal checks that your DNS CNAME points to the right place.
Verified — you're live
Your domain is routing to your app with HTTPS. Open it in a browser to confirm.
No CNAME — DNS hasn't propagated yet
Wait a few minutes and try again. If it keeps failing after 30 minutes, double-check the record in your DNS provider.
Multiple domains
You can add more than one custom domain to the same app. All domains will serve the same container — useful for www and non-www variants, or multiple brand domains pointing at one backend.
Repeat Steps 1–3 for each domain you want to add. Each gets its own CNAME record and its own HTTPS certificate.
Removing a custom domain
In the portal Domains tab, click Remove next to the domain. This stops Clouderized from routing that domain to your app. Don't forget to also delete the CNAME record in your DNS provider — otherwise visitors will see a generic error until the TTL expires.
Troubleshooting
Verify keeps failing after 30+ minutes
Check the CNAME value exactly matches what the portal shows — any extra characters or a typo will cause it to fail. You can confirm the record is live by running dig CNAME app.example.com +short in a terminal.
Domain verifies but shows a certificate error in the browser
TLS certificates are issued automatically but can take a minute or two to provision after DNS verifies. Wait 2–3 minutes and reload.
My DNS provider doesn't support CNAME on the root domain
Use www.example.com as your custom domain (CNAME on www is always supported), then set up a redirect from the root domain to www in your DNS provider's redirect/forwarding feature.
Need help?
Email us at [email protected] — include your domain name, username, and app name.