No ANY records found for 104.28.243.
Try 28.243 instead?
id 50799, opcode QUERY, rcode NXDOMAIN, flags QR RD RA ;QUESTION 104.28.243. IN ANY ;ANSWER ;AUTHORITY . 86343 IN SOA a.root-servers.net. nstld.verisign-grs.com. 2024110100 1800 900 604800 86400 ;ADDITIONAL
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