No ANY records found for 31.28.166.180.
Try 28.166.180 instead?
id 60903, opcode QUERY, rcode NXDOMAIN, flags QR RD RA ;QUESTION 31.28.166.180. IN ANY ;ANSWER ;AUTHORITY . 86385 IN SOA a.root-servers.net. nstld.verisign-grs.com. 2025010702 1800 900 604800 86400 ;ADDITIONAL
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