Blog DNS Toolbox: How to Perform a Full DNS Enumeration and Domain Research

A records

Cisco Systems, Inc.
72.163.4.185   4

AAAA records

Cisco Systems, Inc.
2001:420:1101:1::1853

MX records

NS records

Cisco Systems, Inc.
ns3.cisco.com867
ns2.cisco.com867
ns1.cisco.com867

SOA records

ttl: 7,200
email: postmaster@cisco.com855

TXT

zpSH7Ye/seyY61hH8+Rq5Kb+ZJ9hDa+qeFBaD/6sPAAg+2POkG Show more

CNAME records pointed here2