`21po.com`

DNSSEC	⚠️ Not signed
NS	`ns19.xincache.com` ⭐
		A	2402:4e00:1470:2::e^{🇨🇳 TENCENT-NET-AP2402:4e00:1400::/40}
		A	2402:4e00:1730::e^{🇨🇳 TENCENT-NET-AP2402:4e00:1700::/40}
		A	1.12.0.4^{🇨🇳 TENCENT-NET-AP-CN1.12.0.0/20 ZL-IDC-BOM}
		A	36.155.149.180^{🇨🇳 CMNET-Jiangsu-AP36.155.144.0/21 CMI (Customer Route)}
		A	112.80.181.45^{🇨🇳 CHINA169-Backbone112.80.0.0/13 China Unicom CHINA169 Jiangsu Province Network}
		A	117.89.178.173^{🇨🇳 ChinaNet-NANJING-JISHAN-IDC117.89.176.0/21 JS-CT NJ-JS-IDC}
		A	125.94.59.210^{🇨🇳 CHINANET-BACKBONE125.88.0.0/13 chinanet Guangdong network}
		A	129.211.176.209^{🇨🇳 TENCENT-NET-AP129.211.176.0/20}
NS	`ns20.xincache.com`
		A	2402:4e00:111:fff::c^{🇨🇳 TENCENT-NET-AP2402:4e00::/35}
		A	1.12.0.1^{🇨🇳 TENCENT-NET-AP-CN1.12.0.0/20 ZL-IDC-BOM}
		A	36.155.149.176^{🇨🇳 CMNET-Jiangsu-AP36.155.144.0/21 CMI (Customer Route)}
		A	112.80.181.111^{🇨🇳 CHINA169-Backbone112.80.0.0/13 China Unicom CHINA169 Jiangsu Province Network}
		A	117.89.178.184^{🇨🇳 ChinaNet-NANJING-JISHAN-IDC117.89.176.0/21 JS-CT NJ-JS-IDC}
		A	129.211.176.239^{🇨🇳 TENCENT-NET-AP129.211.176.0/20}
		A	163.177.5.23^{🇨🇳 UNICOM-GuangZhou-IDC163.177.5.0/24}
MX	61.129.49.6 ⭐
SOA	`ns19.xincache.com`enterprise1dnsadmin@dnspod.com serial=1576654795

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1776126617

Same first word

21po.com

Similar names

21op.com

po21.com

po12.com

1op2.nl

op21.de

op12.xyz

po21.net

12op.com

p1o2.com

1p2o.com

op12.be

12po.com

po12.ddns.net

op12.com

DNS History

4 records (3 active, 1 former)

●NSns19.xincache.com2015-07-07 → 2026-04-14 · 2 obs

● 2015-07-07 16:30:54
● 2026-04-14 01:00:06

●NSns20.xincache.com2015-07-07 → 2026-04-14 · 2 obs

● 2015-07-07 16:30:54
● 2026-04-14 01:00:06

●MX61.129.49.62015-07-07 → 2026-04-14 · 5 obs

● 2015-07-07 16:30:54
○ 2015-11-14 14:46:24
○ 2017-03-24 11:59:28
● 2026-03-31 11:54:34
● 2026-04-14 01:00:06

○MX61.129.49.62015-11-14 → 2017-03-24 · 5 obs

○ 2015-07-07 16:30:54
● 2015-11-14 14:46:24
● 2017-03-24 11:59:28
○ 2026-03-31 11:54:34
○ 2026-04-14 01:00:06

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
21po.com	ns19.xincache.com, ns20.xincache.com	12 records

✅ Authoritative Response

Server:1.12.0.1

NS records: ns19.xincache.com, ns20.xincache.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 21po.com (unsigned zone)

⏱️ Timing

Total: 135ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`ns19.xincache.com, ns20.xincache.com`
MX	1	`61.129.49.6 (pri: 20)`
SOA	1	`ns19.xincache.com enterprise1dnsadmin.dn`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (ns19.xincache.com, ns19.xincache.com, ns19.xincache.com...)

Analysis

Name Servers

Delegation for 21po.com rests with two name servers, ns19.xincache.com and ns20.xincache.com.

21po.com shares the same name server setup as other domains, including zjkpeace.gov.cn, hongdacpa.com, chun.com.cn, xnkj.com and zgdlc.com.

21po.com at least partially shares name servers with other domains, for instance ocom.com.cn, sz-weixin.com, spsun.net, hbhxsl.cn and abbesd.com.

These name servers are commonly used with ns11.xincache.com and ns12.xincache.com.

Host names with eight IP numbers:

ns19.xincache.com points to: 2402:4e00:1470:2::e, 2402:4e00:1730::e, 1.12.0.4, 36.155.149.180, 112.80.181.45, 117.89.178.173, 125.94.59.210 and 129.211.176.209.

Host names with seven IP numbers:

ns20.xincache.com points to: 2402:4e00:111:fff::c, 1.12.0.1, 36.155.149.176, 112.80.181.111, 117.89.178.184, 129.211.176.239 and 163.177.5.23.

Mail Servers

21po.com is handled by a single mail server, 61.129.49.6.

21po.com - robtex.com

21po.com

com