`study168.cn`

DNSSEC	⚠️ Not signed
A	38.177.181.168^{🇺🇸 AS39847838.177.128.0/18 PEG TECH INC PT-82}
NS	`ns1.nowcndns.com` ⭐
		A	1.193.216.204^{🇨🇳 CHINANET-Henan-Luoyang-IDC1.193.216.0/24 Chinatelecom HeNan Province Network}
		A	218.98.111.129^{🇩🇪 HKCICL-AS-AP218.98.111.0/24 HONG KONG COMMUNICATIONS INTERNATIONAL CO.,LIMITED}
		A	218.98.111.138^{🇩🇪 HKCICL-AS-AP218.98.111.0/24 HONG KONG COMMUNICATIONS INTERNATIONAL CO.,LIMITED}
NS	`ns2.nowcndns.com`
		A	61.158.128.11^{🇨🇳 CHINA169-Backbone61.158.128.0/17 CNC Group CHINA169 Henan Province Network}
			PTR	`11.128.158.61.ha.cnc`
		A	183.253.57.202^{🇨🇳 CHINAMOBILE-CN183.253.0.0/16 CMI (Customer Route)}
		A	211.99.99.38^{🇨🇳 DONGGUAN-1211.99.99.0/24 Proxy-registered route object}
SOA	`ns1.nowcndns.com`admin@nowcndns.com serial=1773127084

`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=2034589158

Same first word

study168.cn

DNS History

4 records (3 active, 1 former)

●NSns1.nowcndns.com2026-02-19 → 2026-03-26 · 2 obs

● 2026-02-19 12:44:20
● 2026-03-26 09:44:50

●NSns2.nowcndns.com2026-02-19 → 2026-03-26 · 2 obs

● 2026-02-19 12:44:20
● 2026-03-26 09:44:50

●A38.177.181.1682026-03-22 → 2026-03-26 · 3 obs

○ 2026-02-19 12:44:20
● 2026-03-22 11:19:56
● 2026-03-26 09:44:50

○A38.6.252.1252026-02-19 → 2026-02-19 · 3 obs

● 2026-02-19 12:44:20
○ 2026-03-22 11:19:56
○ 2026-03-26 09:44:50

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn...	-
study168.cn	ns1.nowcndns.com, ns2.nowcndns.com	-

✅ Authoritative Response

Server:1.193.216.204

NS records: ns1.nowcndns.com, ns2.nowcndns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for study168.cn (unsigned zone)

⏱️ Timing

Total: 1659ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`38.177.181.168`
NS	2	`ns1.nowcndns.com, ns2.nowcndns.com`
SOA	1	`ns1.nowcndns.com admin.nowcndns.com`

Analysis

IP Addresses

study168.cn points to a single IP: 38.177.181.168.

Other host names, for instance howplan.com.cn, pojtizxl.cn, www.howplan.com.cn, juxinggroup.cn and y5y8.cn share IP numbers with study168.cn.

Name Servers

study168.cn's delegation is to two name servers ns1.nowcndns.com and ns2.nowcndns.com.

study168.cn shares the same name server configuration as other domains, such as whsbzx.cn, jian-ba.cn, vbnh.cn, fmark.cn and belik.com.cn.

Host names with three IP numbers

The host name ns1.nowcndns.com points to 1.193.216.204, 218.98.111.129 and 218.98.111.138; the host name ns2.nowcndns.com points to 61.158.128.11, 183.253.57.202 and 211.99.99.38

study168.cn - robtex.com

study168.cn

cn