Question and response
Question
dig io. NS
Answer
io. 3600 NS a2.nic.io.
io. 3600 NS a0.nic.io.
io. 3600 NS c0.nic.io.
io. 3600 NS b0.nic.io.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0