I have created a subdomain prime.domain.tld, and delegated it to a different name server than the one of the domain.tld. I used NS txt. So far, so good.
Now, after a week of waiting for propagation, I have mixed results :
- One is fully propagated
- Most a partially propagated (say, 1 external server out of 8 has the NS records)
- Some are not propagated at all (none).
It looks like cloudflare is publishing the NS records correctly (after all, some external DNS pick them up), and it is propagating very little.
Any clue of what might be wrong/missing or how I can help this process?
You can try on prime.scootmobiel.nl, for an example.