I'm with namecheap and they seem to be splitting my TXT value field into to sections because of the length of the offer. Have you had any issues?
Discussion
it still works. i checked nostr:npub185h9z5yxn8uc7retm0n6gkm88358lejzparxms5kmy9epr236k2qcswrdp's address and his does that too.
https://www.whatsmydns.net/#TXT/matt.user._bitcoin-payment.mattcorallo.com
make sure you enable DNSSEC. there's a toggle to turn it on..