No ANY records found for 20.231.239.246.
Try 231.239.246 instead?
id 37999, opcode QUERY, rcode NXDOMAIN, flags QR RD RA ;QUESTION 20.231.239.246. IN ANY ;ANSWER ;AUTHORITY . 86399 IN SOA a.root-servers.net. nstld.verisign-grs.com. 2025062900 1800 900 604800 86400 ;ADDITIONAL
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