`qtddm.cn`

DNSSEC	⚠️ Not signed
A	156.235.134.159^{🇭🇰 DXTL-1156.235.134.0/24 Proxy-registered route object}
NS	`dm1.longmingdns.com` ⭐
		A	218.98.111.163^{🇩🇪 AS140227218.98.111.0/24 HONG KONG COMMUNICATIONS INTERNATIONAL CO.,LIMITED}
NS	`dm2.longmingdns.com`
		A	183.253.57.197^{🇨🇳 CHINAMOBILE-CN183.253.0.0/16 CMI (Customer Route)}
		A	211.99.99.56^{🇨🇳 AS63695211.99.99.0/24 Proxy-registered route object}
SOA	`dm1.longmingdns.com`dnsadmin@longmingdns.com serial=1774604526

`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=2034792638

Same first word

qtddm.cn

Similar names

qddmt.com

DNS History

7 records (3 active, 4 former)

●NSdm1.longmingdns.com2026-03-19 → 2026-05-14 · 3 obs

○ 2020-03-09 02:40:48
● 2026-03-19 19:10:42
● 2026-05-14 17:56:58

●NSdm2.longmingdns.com2026-03-19 → 2026-05-14 · 3 obs

○ 2020-03-09 02:40:48
● 2026-03-19 19:10:42
● 2026-05-14 17:56:58

○NSdns3.hichina.com2020-03-09 → 2020-03-09 · 3 obs

● 2020-03-09 02:40:48
○ 2026-03-19 19:10:42
○ 2026-05-14 17:56:58

○NSdns4.hichina.com2020-03-09 → 2020-03-09 · 3 obs

● 2020-03-09 02:40:48
○ 2026-03-19 19:10:42
○ 2026-05-14 17:56:58

○A149.29.119.1052026-03-19 → 2026-05-14 · 2 obs

○ 2026-03-19 19:10:42
○ 2026-05-14 17:56:58

●A156.235.134.1592026-04-01 → 2026-05-14 · 3 obs

○ 2026-03-19 19:10:42
● 2026-04-01 08:35:02
● 2026-05-14 17:56:58

○A45.194.144.782026-03-19 → 2026-03-19 · 3 obs

● 2026-03-19 19:10:42
○ 2026-04-01 08:35:02
○ 2026-05-14 17:56:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	e.dns.cn, a.dns.cn, c.dns.cn, d.dns.cn...	-
qtddm.cn	dm1.longmingdns.com, dm2.longmingdns.com	-

✅ Authoritative Response

Server:211.99.99.56

NS records: dm1.longmingdns.com, dm2.longmingdns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for qtddm.cn (unsigned zone)

⏱️ Timing

Total: 3379ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`156.235.134.159`
NS	2	`dm1.longmingdns.com, dm2.longmingdns.com`
SOA	1	`dm1.longmingdns.com dnsadmin.longmingdns`

Analysis

IP Addresses

qtddm.cn resolves to a single IP address: 156.235.134.159.

Other host names such as sbze.cn, kongjian.net.cn, www.sbze.cn and mail.kongjian.net.cn share IP numbers with qtddm.cn.

Name Servers

qtddm.cn's delegation uses two name servers, dm1.longmingdns.com and dm2.longmingdns.com.

qtddm.cn shares the same name server setup as other domains, for example vfcw.cn, renhe.net.cn, complexy.cn, 58379.cn and buygps.cn.

Hosts with two IPs:

dm2.longmingdns.com points to 183.253.57.197 and 211.99.99.56.

Hosts with one IP:

dm1.longmingdns.com points to 218.98.111.163.

qtddm.cn - robtex.com

qtddm.cn

cn