No ANY records found for alex.ns.cloudflare.com.
Try ns.cloudflare.com instead?
id 11794, opcode QUERY, rcode NOTIMP, flags QR RD RA ;QUESTION alex.ns.cloudflare.com. IN ANY ;ANSWER ;AUTHORITY ;ADDITIONAL
whatsmydns.net ANY Record Lookup tool lets you query DNS servers and get instant results.
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