ns03.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 ns03.globo.com. NS
Answer
The response has no answer records.
Authority
globo.com. 3600 SOA ns01.globo.com. fapesp.corp.globo.com. 2026031500 10800 3600 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0