Zone apex
Start of authority
Email
Serial
2603210030
Refresh
30m
Retry
15m
Expire
7d
Negative cache TTL
15m
Question and response
Question
dig mail.systec-.ir. SOA
Answer
The response has no answer records.
Authority
ir. 900 SOA a.nic.ir. info.nic.ir. 2603210030 1800 900 604800 900
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0