No ANY records found for 251.194.173.
Try 194.173 instead?
id 30881, opcode QUERY, rcode NXDOMAIN, flags QR RD RA ;QUESTION 251.194.173. IN ANY ;ANSWER ;AUTHORITY . 86392 IN SOA a.root-servers.net. nstld.verisign-grs.com. 2025080500 1800 900 604800 86400 ;ADDITIONAL
whatsmydns.net ANY Record Lookup tool lets you query DNS servers and get instant results.
Looking for easier to understand results? Use the Global DNS Checker tool.