51zz.com.cn - robtex.com
51zz.com.cn
| DNSSEC | ⚠️ Not signed | ||||||
| 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 | ||||||
| SOA | dm1.longmingdns.comdnsadmin@longmingdns.com serial=1781193233 | ||||||
com.cn
| DNSSEC | ⚠️ Not signed | ||||||
| NS | a.dns.cn ⭐ ⚠️ Not in parent delegation | ||||||
| NS | b.dns.cn ⚠️ Not in parent delegation | ||||||
| NS | c.dns.cn ⚠️ Not in parent delegation | ||||||
| NS | cns.cernet.net ⚠️ Not in parent delegation | ||||||
| NS | d.dns.cn ⚠️ Not in parent delegation | ||||||
| NS | e.dns.cn ⚠️ Not in parent delegation | ||||||
| SOA | a.dns.cnroot@cnnic.cn serial=2030723397 | ||||||
Same first word
Similar names
DNS History
20 records (2 active, 18 former)
●NSdm1.longmingdns.com2026-03-21 → 2026-08-03 · 3 obs
○ 2018-07-09 04:57:34
● 2026-03-21 07:04:24
● 2026-08-03 15:30:46
● 2026-03-21 07:04:24
● 2026-08-03 15:30:46
●NSdm2.longmingdns.com2026-03-21 → 2026-08-03 · 3 obs
○ 2018-07-09 04:57:34
● 2026-03-21 07:04:24
● 2026-08-03 15:30:46
● 2026-03-21 07:04:24
● 2026-08-03 15:30:46
○NSdns1.iidns.com2015-07-17 → 2016-03-10 · 5 obs
○ 2008-11-27 22:12:14
● 2015-07-17 20:46:24
● 2016-03-10 12:38:06
○ 2018-07-09 04:57:34
○ 2026-08-03 15:30:46
● 2015-07-17 20:46:24
● 2016-03-10 12:38:06
○ 2018-07-09 04:57:34
○ 2026-08-03 15:30:46
○NSdns2.iidns.com2015-07-17 → 2016-03-10 · 5 obs
○ 2008-11-27 22:12:14
● 2015-07-17 20:46:24
● 2016-03-10 12:38:06
○ 2018-07-09 04:57:34
○ 2026-08-03 15:30:46
● 2015-07-17 20:46:24
● 2016-03-10 12:38:06
○ 2018-07-09 04:57:34
○ 2026-08-03 15:30:46
○NSdns3.iidns.com2015-07-17 → 2016-03-10 · 5 obs
○ 2008-11-27 22:12:14
● 2015-07-17 20:46:24
● 2016-03-10 12:38:06
○ 2018-07-09 04:57:34
○ 2026-08-03 15:30:46
● 2015-07-17 20:46:24
● 2016-03-10 12:38:06
○ 2018-07-09 04:57:34
○ 2026-08-03 15:30:46
○NSdns4.iidns.com2015-07-17 → 2016-03-10 · 5 obs
○ 2008-11-27 22:12:14
● 2015-07-17 20:46:24
● 2016-03-10 12:38:06
○ 2018-07-09 04:57:34
○ 2026-08-03 15:30:46
● 2015-07-17 20:46:24
● 2016-03-10 12:38:06
○ 2018-07-09 04:57:34
○ 2026-08-03 15:30:46
○NSdns5.iidns.com2015-07-17 → 2016-03-10 · 5 obs
○ 2008-11-27 22:12:14
● 2015-07-17 20:46:24
● 2016-03-10 12:38:06
○ 2018-07-09 04:57:34
○ 2026-08-03 15:30:46
● 2015-07-17 20:46:24
● 2016-03-10 12:38:06
○ 2018-07-09 04:57:34
○ 2026-08-03 15:30:46
○NSdns6.iidns.com2015-07-17 → 2016-03-10 · 5 obs
○ 2008-11-27 22:12:14
● 2015-07-17 20:46:24
● 2016-03-10 12:38:06
○ 2018-07-09 04:57:34
○ 2026-08-03 15:30:46
● 2015-07-17 20:46:24
● 2016-03-10 12:38:06
○ 2018-07-09 04:57:34
○ 2026-08-03 15:30:46
○NSns1.dnparking.com2008-11-27 → 2008-11-27 · 3 obs
● 2008-11-27 22:12:14
○ 2015-07-17 20:46:24
○ 2026-08-03 15:30:46
○ 2015-07-17 20:46:24
○ 2026-08-03 15:30:46
○NSns2.dnparking.com2008-11-27 → 2008-11-27 · 3 obs
● 2008-11-27 22:12:14
○ 2015-07-17 20:46:24
○ 2026-08-03 15:30:46
○ 2015-07-17 20:46:24
○ 2026-08-03 15:30:46
○NSns3.dnparking.com2008-11-27 → 2008-11-27 · 3 obs
● 2008-11-27 22:12:14
○ 2015-07-17 20:46:24
○ 2026-08-03 15:30:46
○ 2015-07-17 20:46:24
○ 2026-08-03 15:30:46
○NSns4.dnparking.com2008-11-27 → 2008-11-27 · 3 obs
● 2008-11-27 22:12:14
○ 2015-07-17 20:46:24
○ 2026-08-03 15:30:46
○ 2015-07-17 20:46:24
○ 2026-08-03 15:30:46
○NSv1.dns234.net2018-07-09 → 2018-07-09 · 4 obs
○ 2016-03-10 12:38:06
● 2018-07-09 04:57:34
○ 2026-03-21 07:04:24
○ 2026-08-03 15:30:46
● 2018-07-09 04:57:34
○ 2026-03-21 07:04:24
○ 2026-08-03 15:30:46
○NSv2.dns234.net2018-07-09 → 2018-07-09 · 4 obs
○ 2016-03-10 12:38:06
● 2018-07-09 04:57:34
○ 2026-03-21 07:04:24
○ 2026-08-03 15:30:46
● 2018-07-09 04:57:34
○ 2026-03-21 07:04:24
○ 2026-08-03 15:30:46
○A115.47.8.1602015-07-17 → 2016-03-10 · 5 obs
○ 2008-11-27 22:12:14
● 2015-07-17 20:46:24
● 2016-03-10 12:38:06
○ 2018-07-09 04:57:34
○ 2026-08-03 15:30:46
● 2015-07-17 20:46:24
● 2016-03-10 12:38:06
○ 2018-07-09 04:57:34
○ 2026-08-03 15:30:46
○A154.93.233.532026-03-21 → 2026-08-03 · 2 obs
○ 2026-03-21 07:04:24
○ 2026-08-03 15:30:46
○ 2026-08-03 15:30:46
○A160.124.227.172018-07-09 → 2018-07-09 · 4 obs
○ 2016-03-10 12:38:06
● 2018-07-09 04:57:34
○ 2026-03-21 07:04:24
○ 2026-08-03 15:30:46
● 2018-07-09 04:57:34
○ 2026-03-21 07:04:24
○ 2026-08-03 15:30:46
○A177.211.160.522026-04-08 → 2026-04-13 · 5 obs
○ 2026-03-21 07:04:24
● 2026-04-08 04:01:14
● 2026-04-13 12:16:08
○ 2026-07-14 17:19:30
○ 2026-08-03 15:30:46
● 2026-04-08 04:01:14
● 2026-04-13 12:16:08
○ 2026-07-14 17:19:30
○ 2026-08-03 15:30:46
○A38.238.83.1812026-03-21 → 2026-03-21 · 4 obs
○ 2018-07-09 04:57:34
● 2026-03-21 07:04:24
○ 2026-04-08 04:01:14
○ 2026-08-03 15:30:46
● 2026-03-21 07:04:24
○ 2026-04-08 04:01:14
○ 2026-08-03 15:30:46
○A61.145.126.2212008-11-27 → 2008-11-27 · 3 obs
● 2008-11-27 22:12:14
○ 2015-07-17 20:46:24
○ 2026-08-03 15:30:46
○ 2015-07-17 20:46:24
○ 2026-08-03 15:30:46
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | b.dns.cn, a.dns.cn, d.dns.cn, e.dns.cn... | - |
| 51zz.com.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 51zz.com.cn (unsigned zone)
⏱️ Timing
Total: 1076ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | dm1.longmingdns.com, dm2.longmingdns.com |
| SOA | 1 | dm1.longmingdns.com dnsadmin.longmingdns |
Analysis
Name Servers
51zz.com.cn is delegated to two name servers: dm1.longmingdns.com and dm2.longmingdns.com.
51zz.com.cn shares its NS records with other domains, for example xuexinedu.cn, guojingsheng1.cn, hghzq.cn and two others.
Host names that have two IP addresses:
dm2.longmingdns.com points to 183.253.57.197 and 211.99.99.56.
Host names that point to one IP address:
dm1.longmingdns.com points to 218.98.111.163.