_lwcad.globo.com has no NS records.
NS records for this zone are defined at globo.com.
NS records for this zone are defined at globo.com.
Question and response
Question
dig _lwcad.globo.com. NS
Answer
The response has no answer records.
Authority
globo.com. 3600 SOA ns01.globo.com. fapesp.corp.globo.com. 2026031900 10800 3600 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0