I am hoping you can add Cloudflare as a backend DNS.

e.g. via endpoints:
ipv4: https://1.1.1.1/cdn-cgi/trace
ipv6: https://[2606:4700:4700::1111]/cdn-cgi/trace

or the raw DNS query:
ipv4: dig +short -4 txt ch whoami.cloudflare @1.1.1.1
ipv6: dig +short -6 txt ch whoami.cloudflare @2606:4700:4700::1111