By Frederik
Hi everyone,
I’m trying to figure out how to configure wildcard subdomains using DigitalOcean App Platform.
Here’s my setup:
-
I have
domain.comserving as my main landing page. -
I’d like all dynamic subdomains (e.g.
xyz.domain.com,abc.domain.com) to point to a different app, not the same one that serves the landing page.
From what I understand, I can’t easily handle subdomain rewrites or routing inside my Svelte app without changing the URL, so I think I need to configure this at the DNS / App Platform level.
Has anyone set up something similar? What’s the best way to configure DigitalOcean so that:
-
The root domain
domain.compoints to one app. -
Any subdomain (
*.domain.com) points to another app.
Any guidance would be much appreciated!
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Hi there,
I think that you should be able to do that by following the steps here:
But as far as I can tell, you can add a wildcard record to your app’s domain to redirect queries for non-existent subdomains to the domain’s root. Would that work for you or are you trying to point the domains to a totally separate web service?
-
Add Your Main Domain First Go to your App → Settings → Domains → Add
example.comfirst. -
Then Add Wildcard Domain Add
*.example.com— this enables dynamic subdomains likefoo.example.com. -
DNS Setup
-
Using DigitalOcean DNS? You’re good! DO auto-creates all needed records.
-
Using external DNS (e.g., Cloudflare)? Add a CNAME for
*.example.com→ your app’s default.ondigitalocean.appURL. Also, add any TXT records DO asks for (for SSL).
-
-
Wait for Propagation (a few mins to hours) Test by visiting any subdomain like
test.example.com. -
That’s it! Wildcard subdomains should route to your app.
Note: If using Cloudflare, turn on CNAME Flattening to avoid DNS errors like Error 1016.
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