Question and response
Question
dig hsd1.co.comcast.net. DS
Answer
The response has no answer records.
Authority
co.comcast.net. 900 SOA dns101.comcast.net.co.comcast.net. hostmaster.comcast.com.co.comcast.net. 2017110991 7200 3600 604800 900
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0