www.equifax.com has no NS records.
NS records for this zone are defined at equifax.com.
NS records for this zone are defined at equifax.com.
Question and response
Question
dig www.equifax.com. NS
Answer
The response has no answer records.
Authority
equifax.com. 900 SOA ibloxgrid11.equifax.com. hostmaster.equifax.com. 2019114560 10800 3600 2419200 900
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0