Question and response
Question
dig res.spectrum.com. PTR
Answer
The response has no answer records.
Authority
res.spectrum.com. 14400 SOA auth1.charter.com. hostmaster.charter.com. 2019211617 7200 3600 604800 14400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0