`19921.cn`

DNSSEC	⚠️ Not signed
NS	`n1.xundns.com` ⚠️ Not in zone NS records
		A	2409:8c44:1b00:601:1:1110:609:6027^{🇨🇳 CHINAMOBILE-CN2409:8c44:1b00::/48 CMI (Customer Route)}
		A	2604:86c0:5001:11::2659:466b^{🇺🇸 AS630232604:86c0:5000::/36 GTHOST-SEA}
		A	38.89.70.107^{🇺🇸 AS6302338.89.70.0/24 Route Registered for Cogent Communications Customer - GlobalTelehost Corp}
			PTR	`107-70-89-38.clients.gthost.com`
		A	42.240.163.163^{🇨🇳 CHINANET-Guangdong-GuangZhou-IDC42.240.160.0/20 Guangzhou IDC of ChinaUnicom}
		A	111.6.96.27^{🇨🇳 CHINAMOBILE-CN111.6.96.0/21 CMI (Customer Route)}
NS	`n2.xundns.com` ⚠️ Not in zone NS records
		A	2408:8621:0:42:e401:813:0:25^{🇨🇳 CHINA169-Backbone2408:8621::/32 China Unicom B811&A1218, China Unicom No.21, Jin-Rong Street}
		A	2408:8722:1801:10:4:611:6303:181^{🇨🇳 CHINA169-Backbone2408:8722::/32 China Unicom B811&A1218, China Unicom No.21, Jin-Rong Street}
		A	2604:86c0:6001:8::a9c5:8e51^{🇺🇸 AS630232604:86c0:6000::/36 GTHOST-SCL}
		A	61.163.30.181^{🇨🇳 CHINA169-Backbone61.163.0.0/16 CNC Group CHINA169 Henan Province Network}
			PTR	`hn.ly.kd.adsl`
		A	122.114.39.7^{🇨🇳 CHINA169-Backbone122.114.0.0/16 route of Chinaunicomroute of Chinaunicom}
		A	169.197.142.81^{🇺🇸 AS63023169.197.142.0/24 GlobalTeleHost}
			PTR	`81-142-197-169.clients.gthost.com`

`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 2035-12-01 #63

Same first word

19921.com

19921.xyz

19921.cn

Similar names

92911.com

19291.cc

11299.com

12991.com

29911.com

91921.cn

11929.us

12919.cn

12919.us

91912.cn

91921.com

99211.com

19912.com

12199.cfd

21919.cfd

12991.us

19912.xyz

11299.co

12919.com

11992.us

11992.cn

91129.com

99211.cn

99121.com

99112.com

11299.ph

19219.com

21991.com

12199.com

29911.us

91912.com

DNS History

7 records (2 active, 5 former)

●NSn1.xundns.com2026-03-16 → 2026-08-01 · 2 obs

● 2026-03-16 13:59:52
● 2026-08-01 11:03:28

●NSn2.xundns.com2026-03-16 → 2026-08-01 · 2 obs

● 2026-03-16 13:59:52
● 2026-08-01 11:03:28

○A103.7.31.1882016-01-04 → 2016-04-09 · 5 obs

○ 2015-10-30 10:13:38
● 2016-01-04 14:24:36
● 2016-04-09 09:03:14
○ 2026-03-16 13:59:52
○ 2026-08-01 11:03:28

○A121.14.125.522015-10-30 → 2015-10-30 · 3 obs

● 2015-10-30 10:13:38
○ 2016-01-04 14:24:36
○ 2026-08-01 11:03:28

○CNAME9956xpjtg.xinpujing9956888.com2026-03-16 → 2026-06-16 · 5 obs

○ 2016-04-09 09:03:14
● 2026-03-16 13:59:52
● 2026-06-16 07:31:58
○ 2026-08-01 11:03:26
○ 2026-08-01 11:03:28

○CNAMEaps0550.qq.com2016-01-04 → 2016-04-09 · 5 obs

○ 2015-10-30 10:13:38
● 2016-01-04 14:24:36
● 2016-04-09 09:03:14
○ 2026-03-16 13:59:52
○ 2026-08-01 11:03:28

○CNAMEid.qzone.qq.com2015-10-30 → 2016-04-09 · 4 obs

● 2015-10-30 10:13:38
● 2016-04-09 09:03:14
○ 2026-03-16 13:59:52
○ 2026-08-01 11:03:28

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn...	-
19921.cn	n1.xundns.com, n2.xundns.com	-

✅ Authoritative Response

Server:38.89.70.107

NS records: n1.xundns.com, n2.xundns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 19921.cn (unsigned zone)

⏱️ Timing

Total: 1847ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`n1.xundns.com, n2.xundns.com`
CNAME	1	`9956xpjtg.xinpujing9956888.com`
SOA	1	`n1.xundns.com nsadmin.xundns.com`

Analysis

Name Servers

19921.cn has two authoritative name servers — n1.xundns.com and n2.xundns.com.

19921.cn shares its name server setup with other domains, including hbjrff.com, 0160b12e12c2689b.com, sdtjsw.com and two others.

There is at least partial name server overlap between 19921.cn and other domains — ashainfotechsolutions.com, yangwajia.com, flourpowerbakeshop.com and two more among them.

These name servers frequently co-occur with the name servers v1s1.xundns.com and v1s2.xundns.com.

Host names with 6 IP numbers:

n2.xundns.com points to 61.163.30.181, 122.114.39.7, 169.197.142.81 and 3 other IP addresses.

Host names that resolve to five IP addresses:

n1.xundns.com points to 38.89.70.107, 42.240.163.163, 111.6.96.27 and two other IP addresses.

19921.cn - robtex.com

19921.cn

cn