hdszedu.cn - robtex.com
hdszedu.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 38.11.178.47🇺🇸 PEGTECHINC38.11.160.0/19 PEG TECH INC | ||||||
| NS | dm1.longmingdns.com ⭐ | ||||||
| A | 218.98.111.163🇩🇪 HKCICL-AS-AP218.98.111.0/24 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🇨🇳 DONGGUAN-1211.99.99.0/24 Proxy-registered route object | ||||||
| SOA | dm1.longmingdns.comdnsadmin@longmingdns.com serial=1767505773 | ||||||
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.cnroot@cnnic.cn serial=2034704887 | ||||||
Same first word
Similar names
DNS History
10 records (3 active, 7 former)
●NSdm1.longmingdns.com2026-04-24 → 2026-04-24 · 2 obs
● 2026-04-24 01:29:42
●NSdm2.longmingdns.com2026-04-24 → 2026-04-24 · 2 obs
● 2026-04-24 01:29:42
○NSns1.myhostadmin.net2018-05-09 → 2018-05-09 · 2 obs
○ 2026-04-24 01:29:42
○NSns2.myhostadmin.net2018-05-09 → 2018-05-09 · 2 obs
○ 2026-04-24 01:29:42
○NSns3.myhostadmin.net2018-05-09 → 2018-05-09 · 2 obs
○ 2026-04-24 01:29:42
○NSns4.myhostadmin.net2018-05-09 → 2018-05-09 · 2 obs
○ 2026-04-24 01:29:42
○NSns5.myhostadmin.net2018-05-09 → 2018-05-09 · 2 obs
○ 2026-04-24 01:29:42
○NSns6.myhostadmin.net2018-05-09 → 2018-05-09 · 2 obs
○ 2026-04-24 01:29:42
○A104.202.177.312018-05-09 → 2018-05-09 · 2 obs
○ 2026-04-24 01:29:42
●A38.11.178.472026-04-24 → 2026-04-24 · 2 obs
● 2026-04-24 01:29:42
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | e.dns.cn, a.dns.cn, c.dns.cn, d.dns.cn... | - |
| hdszedu.cn | dm1.longmingdns.com, dm2.longmingdns.com | - |
✅ Authoritative Response
Server:211.99.99.56
NS records: dm1.longmingdns.com, dm2.longmingdns.com
🔒 DNSSEC Status
❌ Bogus (DNSSEC validation failed)
Validation error at cn: Error: DNS query timeout: 203.119.29.1 for DNSKEY cn
⏱️ Timing
Total: 4392ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 38.11.178.47 |
| NS | 2 | dm1.longmingdns.com, dm2.longmingdns.com |
| SOA | 1 | dm1.longmingdns.com dnsadmin.longmingdns |
Analysis
IP Addresses
hdszedu.cn points to a single IP number: 38.11.178.47.
Other host names like 51zc.cn and nydizhu.com share IP numbers with hdszedu.cn.
Name Servers
hdszedu.cn is delegated to two name servers: dm1.longmingdns.com and dm2.longmingdns.com.
hdszedu.cn shares the same name server setup as other domains, for example gzsguqin.cn, keqi123.com.cn, 512velc.cn, vvwq.cn and rchouse.net.cn.
Host names with two IP numbers: dm2.longmingdns.com points to 183.253.57.197 and 211.99.99.56.
Host names with one IP number: dm1.longmingdns.com points to 218.98.111.163.