`c4920.cn`

DNSSEC	⚠️ Not signed
A	38.177.139.208^{🇺🇸 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=1773125658

`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=2034663204

Same first word

c4920.cn

Similar names

49c20.com

49c02.com

DNS History

4 records (3 active, 1 former)

●NSns1.nowcndns.com2026-02-23 → 2026-04-12 · 2 obs

● 2026-02-23 14:55:34
● 2026-04-12 17:27:20

●NSns2.nowcndns.com2026-02-23 → 2026-04-12 · 2 obs

● 2026-02-23 14:55:34
● 2026-04-12 17:27:20

○A38.14.13.522026-02-23 → 2026-02-23 · 3 obs

● 2026-02-23 14:55:34
○ 2026-04-12 09:25:28
○ 2026-04-12 17:27:20

●A38.177.139.2082026-04-12 → 2026-04-12 · 3 obs

○ 2026-02-23 14:55:34
● 2026-04-12 09:25:28
● 2026-04-12 17:27:20

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	e.dns.cn, a.dns.cn, c.dns.cn, d.dns.cn...	-
c4920.cn	ns1.nowcndns.com, ns2.nowcndns.com	-

✅ Authoritative Response

Server:211.99.99.38

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

🔒 DNSSEC Status

❌ Bogus (DNSSEC validation failed)

Validation error at cn: Error: DNS query timeout: 203.119.29.1 for DNSKEY cn

⏱️ Timing

Total: 3519ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`38.177.139.208`
NS	2	`ns1.nowcndns.com, ns2.nowcndns.com`
SOA	1	`ns1.nowcndns.com admin.nowcndns.com`

Analysis

IP Addresses

c4920.cn points to a single IP: 38.177.139.208.

Other host names, for instance d8471.cn, gogody.cn, yiwusunway.com.cn, xqau.cn and jwork.com.cn share IP numbers with c4920.cn.

Name Servers

c4920.cn's delegation is to two name servers ns1.nowcndns.com and ns2.nowcndns.com.

c4920.cn shares the same name server configuration as other domains, such as tcoffice.cn, 180car.cn, misterwine.cn, jsyngk.cn and freesys.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

c4920.cn - robtex.com

c4920.cn

cn