7
records
Name Servers
TTL
NS
—
5h
NS
—
5h
NS
—
5h
NS
—
5h
NS
—
5h
NS
—
5h
com.cn. 21597 IN NS a.dns.cn. com.cn. 21597 IN NS b.dns.cn. com.cn. 21597 IN NS c.dns.cn. com.cn. 21597 IN NS cns.cernet.net. com.cn. 21597 IN NS d.dns.cn. com.cn. 21597 IN NS e.dns.cn.
SOA Details
TTL
SOA
Primary NS
6h
Responsible
root.cnnic.cn
0m
Serial
2030253022
0m
Times
Refresh
2h
Retry
1h
Expire
28d
Minimum TTL
6h
com.cn. 21600 IN SOA a.dns.cn. root.cnnic.cn. 2030253022 7200 3600 2419200 21600