Zone apex
Start of authority
Email
Serial
2018053341
Refresh
3h
Retry
1h
Expire
14d
Negative cache TTL
5m
Question and response
Question
dig c.dns.usp.br. SOA
Answer
The response has no answer records.
Authority
dns.usp.br. 300 SOA a.dns.usp.br. hostmaster.usp.br. 2018053341 10800 3600 1209600 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0