Zone apex
Start of authority
Email
Serial
2015042173
Refresh
2h
Retry
1h
Expire
7d
Negative cache TTL
15m
Question and response
Question
dig xfinity.com. SOA
Answer
xfinity.com. 7200 SOA dns101.comcast.net. dnsadmin.comcast.net. 2015042173 7200 3600 604800 900
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0