Zone apex
Start of authority
Email
Serial
2025121011
Refresh
1h
Retry
20m
Expire
1d
Negative cache TTL
10m
Question and response
Question
dig 21vianet.com. SOA
Answer
21vianet.com. 600 SOA vip3.alidns.com. hostmaster.hichina.com. 2025121011 3600 1200 86400 600
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1280, xrcode 0, version 0, flags 0