Question and response
Question
dig api.sfnet.com.br. NS
Answer
api.sfnet.com.br. 5 CNAME sfnet.com.br.
sfnet.com.br. 4 NS master.frionline.com.br.
sfnet.com.br. 4 NS ns2.frionline.com.br.
sfnet.com.br. 4 NS ns1.frionline.com.br.
Authority
The response has no authority records.
Additional
ns1.frionline.com.br. 4 A 177.54.112.248
ns2.frionline.com.br. 4 A 177.54.112.249
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0