.null domains

#1
Can .null domains from opennic.org work with cloudflare.
#2

No, it has to be an officially recognised TLD.

#3

any other dns that i can use?

#4

As implied earlier, you can use any of the officially recognised TLDs.

#5

I know but I want a dns that I can use with .null I already use cloudflare with like 20 domains