Vercel subdomain verification fails when parent domain DNS is inaccessible

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1

Problem

I’m trying to add futuremaker.novaims.unl.pt to my Vercel project, but verification requires a TXT record at _vercel.unl.pt.

I only have DNS control over the novaims.unl.pt zone — I cannot add records to the parent unl.pt domain, as that is managed by Universidade Nova de Lisboa’s central IT.

This is the same issue reported in:

Proposed Solutions

Could you either:

  1. Treat novaims.unl.pt (or unl.pt) as an effective apex/public suffix in Vercel’s internal PSL, so the TXT verification is requested at _vercel.novaims.unl.pt instead — this would allow us to deploy other projects under novaims.unl.pt in the future without running into this same issue each time. This is our preferred option.
  2. Perform a manual domain verification for futuremaker.novaims.unl.pt.

I can prove ownership by adding any DNS record under novaims.unl.pt.

2

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.

You can also use v0 to narrow down the possibilities.

6

Hi @daraujo-6169, welcome to the Vercel Community!

I understand your issue but since unl.pt isn’t part of the official https://publicsuffix.org/list/public_suffix_list.dat we can’t add it to ours.

I’d recommend using one of the listed TLDs or stick with *.vercel.app for the time being.

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