Getting Invalid configuration for a domain and its subdomain

(edited)

Recently I started getting Invalid Configuration for my sub domains. Suppose my domain is xyz.com

xyz.com shows correctly configured in Vercel dashboard www.xyz.com also shows correctly configured (this is redirect to xyz.com) *.xyz.com shows Invalid Configuration

Now I have added below configuration in namecheap (domain purchasing source)

I have also checked domain in https://dnschecker.org/ and it shows the domain is correctly propagated.

I am not able to understand what is wrong here. Things were working fine till 9th May 2025 and it started showing Invalid Configuration after that.

Vercel Staff

Hello,

What is the name of the domain?

Hey. The domain is fabricapp.co

Vercel Staff

I can see that the DNS is propagated and domain is accessible already. Are you still seeing error?

Yes all the subdomains are still red with a Invalid Configuration message.

Vercel Staff

Looks like you have *.fabricapp.co configured with a CNAME record, but wildcard domains need to use Vercel nameservers to automatically generate SSL certificates.

https://vercel.com/docs/domains/working-with-domains#wildcard-domain

vercel.com

Working with domains

Learn how domains work and the options Vercel provides for managing them.

Please give that a try and let us know how it goes

Yes this worked. Thank you so much. Just curious if anything changed recently as this was working before. The only change I did was added the '*' record in namecheap domain records that too after I started seeing invalid config error. But before this, the same config was working from a very long time.

Vercel Staff

No it was always been the case https://vercel.com/guides/why-use-domain-nameservers-method-wildcard-domains

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