How can I verify my custom domain using domains.google.com

Question

How can I verify my custom domain using domains.google.com if it doesn't allow duplicate keys and firebase hosting requires a duplicated key entry?

And firebase requires 2 text entries with same host.

Answer 1

DNS records in Google Domains can contain multiple values. So while you can only have a single TXT record for a given name, it can contain all the values you need to validate the domain for Firebase Hosting.

The steps are:

1. Click the Edit link next to your TXT record.
2. Click the small + next to the (last) value.
3. Enter the new value for the existing record
4. Click Save

Here's one of our domains, after step 1: