`91ddns.com`

DNSSEC	⚠️ Not signed
NS	`f1g1ns1.dnspod.net` ⭐
		A	2402:4e00:1470:2::e^{🇨🇳 TENCENT-NET-AP2402:4e00:1400::/40}
		A	1.12.0.4^{🇨🇳 TENCENT-NET-AP-CN1.12.0.0/20 ZL-IDC-BOM}
		A	1.14.119.35^{🇨🇳 TENCENT-NET-AP1.14.64.0/18}
		A	111.13.13.35^{🇨🇳 CHINAMOBILE-CN111.13.0.0/16 CMI (Customer Route)}
		A	117.135.128.235^{🇨🇳 CHINAMOBILE-CN117.135.128.0/24 CMI (Customer Route)}
			PTR	`(root)`
		A	125.94.59.235^{🇨🇳 CHINANET-BACKBONE125.88.0.0/13 chinanet Guangdong network}
		A	163.177.5.35^{🇨🇳 UNICOM-GuangZhou-IDC163.177.5.0/24}
NS	`ns11.xincache.com` ⚠️ Not in zone NS records
		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	`ns12.xincache.com` ⚠️ Not in zone NS records
		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}
SOA	`f1g1ns1.dnspod.net`nxdomainadmin@dnspod.com serial=1

`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=1774382122

Same first word

91ddns.com

DNS History

7 records (3 active, 4 former)

○NSdns1.51ddns.com2016-06-24 → 2016-06-24 · 4 obs

○ 2016-02-09 08:02:22
● 2016-06-24 01:57:00
○ 2026-03-11 12:08:18
○ 2026-03-24 20:05:26

○NSdns1.51ddns.com.91ddns.com2016-06-24 → 2016-06-24 · 4 obs

○ 2016-02-09 08:02:22
● 2016-06-24 01:57:00
○ 2026-03-11 12:08:18
○ 2026-03-24 20:05:26

○NSdns10.hichina.com2015-07-11 → 2016-02-09 · 4 obs

● 2015-07-11 14:10:08
● 2016-02-09 08:02:22
○ 2016-06-24 01:57:00
○ 2026-03-24 20:05:26

○NSdns9.hichina.com2015-07-11 → 2016-02-09 · 4 obs

● 2015-07-11 14:10:08
● 2016-02-09 08:02:22
○ 2016-06-24 01:57:00
○ 2026-03-24 20:05:26

●NSf1g1ns1.dnspod.net2026-03-11 → 2026-03-24 · 3 obs

○ 2016-06-24 01:57:00
● 2026-03-11 12:08:18
● 2026-03-24 20:05:26

●NSns11.xincache.com2026-03-11 → 2026-03-24 · 3 obs

○ 2016-06-24 01:57:00
● 2026-03-11 12:08:18
● 2026-03-24 20:05:26

●NSns12.xincache.com2026-03-11 → 2026-03-24 · 3 obs

○ 2016-06-24 01:57:00
● 2026-03-11 12:08:18
● 2026-03-24 20:05:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
91ddns.com	ns11.xincache.com, ns12.xincache.com	12 records

✅ Authoritative Response

Server:1.12.0.1

NS records: ns11.xincache.com, ns12.xincache.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 91ddns.com (unsigned zone)

⏱️ Timing

Total: 136ms | Queries: -

📄 Records

Type	Count	Sample Data
SOA	1	`f1g1ns1.dnspod.net nxdomainadmin.dnspod.`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (ns11.xincache.com, ns11.xincache.com, ns11.xincache.com...)

Analysis

Name Servers

91ddns.com is delegated to three name servers: ns11.xincache.com, ns12.xincache.com and f1g1ns1.dnspod.net.

91ddns.com at least partially shares name servers with other domains, for example 6wz.co, feiteng.cn, distributed-energy.cn, webland.com.cn and lixiahg.cn.