12c.comcast.com. A NS SOA MX TXT RRSIG NSEC DNSKEY
Question and response
Question
dig comcast.com. NSEC
Answer
comcast.com. 3600 NSEC 12c.comcast.com. A NS SOA MX TXT RRSIG NSEC DNSKEY
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0