1.67.237.91.ptr.dnshost.net.
Question and response
Question
dig ns1.dnshost.net. PTR
Answer
ns1.dnshost.net. 110 PTR 1.67.237.91.ptr.dnshost.net.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1400, xrcode 0, version 0, flags 0