`classescn.cn`

DNSSEC	⚠️ Not signed
A	156.235.138.198^{🇭🇰 DXTL-1156.235.138.0/24 Proxy-registered route object}
NS	`dm1.longmingdns.com` ⭐
		A	218.98.111.163^{🇩🇪 HKCICL-AS-AP218.98.111.0/24 HONG KONG COMMUNICATIONS INTERNATIONAL CO.,LIMITED}
NS	`dm2.longmingdns.com`
		A	183.253.57.197^{🇨🇳 CHINAMOBILE-CN183.253.0.0/16 CMI (Customer Route)}
		A	211.99.99.56^{🇨🇳 DONGGUAN-1211.99.99.0/24 Proxy-registered route object}
SOA	`dm1.longmingdns.com`dnsadmin@longmingdns.com serial=1774603497

`cn`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.dns.cn` ⭐
	NS	`b.dns.cn`
	NS	`c.dns.cn`
	NS	`d.dns.cn`
	NS	`e.dns.cn`
	NS	`ns.cernet.net` ⚠️ Not in parent delegation
	SOA	`a.dns.cn`root@cnnic.cn serial=2034690396

classescn.cn

6 records (3 active, 3 former)

●NSdm1.longmingdns.com2026-04-10 → 2026-04-20 · 3 obs

○ 2020-01-01 05:49:02
● 2026-04-10 07:39:34
● 2026-04-20 07:34:10

●NSdm2.longmingdns.com2026-04-10 → 2026-04-20 · 3 obs

○ 2020-01-01 05:49:02
● 2026-04-10 07:39:34
● 2026-04-20 07:34:10

○NSjm1.dns.com2020-01-01 → 2020-01-01 · 3 obs

● 2020-01-01 05:49:02
○ 2026-04-10 07:39:34
○ 2026-04-20 07:34:10

○NSjm2.dns.com2020-01-01 → 2020-01-01 · 3 obs

● 2020-01-01 05:49:02
○ 2026-04-10 07:39:34
○ 2026-04-20 07:34:10

●A156.235.138.1982026-04-10 → 2026-04-20 · 3 obs

○ 2020-01-01 05:49:02
● 2026-04-10 07:39:34
● 2026-04-20 07:34:10

○A156.252.110.1652020-01-01 → 2020-01-01 · 3 obs

● 2020-01-01 05:49:02
○ 2026-04-10 07:39:34
○ 2026-04-20 07:34:10

classescn.cn points to a single IP: 156.235.138.198.

Other host names such as 007sd.com.cn and shopclues.com.cn share IP numbers with classescn.cn.

classescn.cn's delegation is to two name servers dm1.longmingdns.com and dm2.longmingdns.com.

classescn.cn shares the same name server configuration as other domains, such as cv81.cn, g7653.cn, carbonhome.cn, cscsy.com.cn and dongnanok.cn.

Host names with two IPs:

Host names with one IP: