Zone apex
Start of authority
Email
Serial
2020011701
Refresh
8h
Retry
1h
Expire
7d
Negative cache TTL
5m
Question and response
Question
dig spf.ctitech.net.br. SOA
Answer
spf.ctitech.net.br. 3600 SOA dns1.ctitech.net.br. postmaster.ctitech.net.br. 2020011701 28800 3600 604800 300
Authority
spf.ctitech.net.br. 3600 NS dns4.ctitech.net.br.
spf.ctitech.net.br. 3600 NS dns1.ctitech.net.br.
spf.ctitech.net.br. 3600 NS dns2.ctitech.net.br.
spf.ctitech.net.br. 3600 NS dns3.ctitech.net.br.
Additional
dns1.ctitech.net.br. 3600 A 177.190.207.234
dns2.ctitech.net.br. 3600 A 186.193.234.22
dns3.ctitech.net.br. 3600 A 186.193.225.228
dns4.ctitech.net.br. 3600 A 104.251.215.11
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0