Vercel custom domain returns ERR_NAME_NOT_RESOLVED despite valid configuration

(edited)

Problem

My custom domain is configured on Vercel with "Valid Configuration" shown on both the domain and the project. The Vercel CDN shows as Active and the nameservers are set to:

ns1.vercel-dns.com
ns2.vercel-dns.com

However, the browser returns:

Error: ERR_NAME_NOT_RESOLVED

The .vercel.app deployment URL works fine.

What I've Tried

Reassigned the domain to the project multiple times
Reset and re-added DNS records
Waited 22+ hours for propagation

Has anyone had this issue?

The domain troubleshooting guide can help with most custom domain configuration issues. You might be able to use that guide to solve it before a human is available to help you. Then you can come back here and share the answer for bonus points.

https://vercel.com/docs/projects/domains/troubleshooting

You can also use v0 to narrow down the possibilities.

Current DNS records:

www CNAME cname.vercel-dns.com.
@ A 216.198.79.1
api CNAME nothing.up.railway.app.

Vercel Alum

What’s the URL?

Sharing this here in case it’s related / helpful

https://www.reddit.com/r/nextjs/s/wHk3xT4TZ9

Hello, what is the URL for the domain or the Vercel app?

Vercel Alum

I'm sorry I don't understand what you mean. Do you have a link to your website?