No ANY records found for 28.166.181.
Try 166.181 instead?
id 40376, opcode QUERY, rcode NXDOMAIN, flags QR RD RA ;QUESTION 28.166.181. IN ANY ;ANSWER ;AUTHORITY . 86387 IN SOA a.root-servers.net. nstld.verisign-grs.com. 2025011000 1800 900 604800 86400 ;ADDITIONAL
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