oucool.cn - robtex.com
oucool.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 177.210.93.14🇧🇷 UNSPECIFIED160.0.0.0/3 | ||||||
| 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=1774351173 | ||||||
cn
| DNSSEC | ⚠️ Not signed | ||||||
| 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=2034583942 | ||||||
Same first word
Similar names
DNS History
8 records (3 active, 5 former)
●NSdm1.longmingdns.com2026-02-16 → 2026-03-25 · 3 obs
○ 2017-03-20 01:43:44
● 2026-02-16 00:47:58
● 2026-03-25 03:15:22
● 2026-02-16 00:47:58
● 2026-03-25 03:15:22
●NSdm2.longmingdns.com2026-02-16 → 2026-03-25 · 3 obs
○ 2017-03-20 01:43:44
● 2026-02-16 00:47:58
● 2026-03-25 03:15:22
● 2026-02-16 00:47:58
● 2026-03-25 03:15:22
○NSns1.alidns.com2015-08-10 → 2017-03-20 · 4 obs
● 2015-08-10 08:13:42
● 2017-03-20 01:43:44
○ 2026-02-16 00:47:58
○ 2026-03-25 03:15:22
● 2017-03-20 01:43:44
○ 2026-02-16 00:47:58
○ 2026-03-25 03:15:22
○NSns2.alidns.com2015-08-10 → 2017-03-20 · 4 obs
● 2015-08-10 08:13:42
● 2017-03-20 01:43:44
○ 2026-02-16 00:47:58
○ 2026-03-25 03:15:22
● 2017-03-20 01:43:44
○ 2026-02-16 00:47:58
○ 2026-03-25 03:15:22
○A124.16.31.1522015-08-10 → 2017-03-20 · 4 obs
● 2015-08-10 08:13:42
● 2017-03-20 01:43:44
○ 2026-02-16 00:47:58
○ 2026-03-25 03:15:22
● 2017-03-20 01:43:44
○ 2026-02-16 00:47:58
○ 2026-03-25 03:15:22
○A149.29.120.1362026-02-16 → 2026-03-25 · 2 obs
○ 2026-02-16 00:47:58
○ 2026-03-25 03:15:22
○ 2026-03-25 03:15:22
●A177.210.93.142026-03-25 → 2026-03-25 · 3 obs
○ 2026-02-21 14:47:26
● 2026-03-25 03:12:46
● 2026-03-25 03:15:22
● 2026-03-25 03:12:46
● 2026-03-25 03:15:22
○A191.214.162.2362026-02-16 → 2026-02-21 · 5 obs
○ 2017-03-20 01:43:44
● 2026-02-16 00:47:58
● 2026-02-21 14:47:26
○ 2026-03-25 03:12:46
○ 2026-03-25 03:15:22
● 2026-02-16 00:47:58
● 2026-02-21 14:47:26
○ 2026-03-25 03:12:46
○ 2026-03-25 03:15:22
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn... | 11 records |
| oucool.cn | dm1.longmingdns.com, dm2.longmingdns.com | - |
✅ Authoritative Response
Server:183.253.57.197
NS records: dm1.longmingdns.com, dm2.longmingdns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for oucool.cn (unsigned zone)
⏱️ Timing
Total: 1645ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 177.210.93.14 |
| NS | 2 | dm1.longmingdns.com, dm2.longmingdns.com |
| SOA | 1 | dm1.longmingdns.com dnsadmin.longmingdns |
📌 Glue Records Collected
Total: 11
In-bailiwick: 10 (a.dns.cn, b.dns.cn, c.dns.cn...)
Out-of-bailiwick: 1 (ns.cernet.net)
Analysis
IP Addresses
oucool.cn points to IP number: 177.210.93.14.
Name Servers
oucool.cn is delegated to two name servers: dm1.longmingdns.com and dm2.longmingdns.com.
oucool.cn shares the same name server setup as solidele.cn, laotx.cn, cabr-gd.cn, vipgy.cn and hongvi.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.