edutvb.cn - dns.ninja
edutvb.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 154.89.97.221🇭🇰 HKIDC-AS-AP154.89.64.0/18 abcde | ||||||
| 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=1768452981 | ||||||
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=2035094375 | ||||||
Same first word
Similar names
DNS History
5 records (3 active, 2 former)
●NSdm1.longmingdns.com2026-04-09 → 2026-07-27 · 3 obs
● 2026-04-09 07:14:02
● 2026-07-27 00:02:10
●NSdm2.longmingdns.com2026-04-09 → 2026-07-27 · 3 obs
● 2026-04-09 07:14:02
● 2026-07-27 00:02:10
○NSf1g1ns1.dnspod.net2015-08-08 → 2016-07-12 · 4 obs
● 2016-07-12 19:04:38
○ 2026-04-09 07:14:02
○ 2026-07-27 00:02:10
○NSf1g1ns2.dnspod.net2015-08-08 → 2016-07-12 · 4 obs
● 2016-07-12 19:04:38
○ 2026-04-09 07:14:02
○ 2026-07-27 00:02:10
●A154.89.97.2212026-04-09 → 2026-07-27 · 2 obs
● 2026-07-27 00:02:10
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | e.dns.cn, a.dns.cn, c.dns.cn, b.dns.cn... | - |
| edutvb.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: 4215ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 154.89.97.221 |
| NS | 2 | dm1.longmingdns.com, dm2.longmingdns.com |
| SOA | 1 | dm1.longmingdns.com dnsadmin.longmingdns |
Analysis
IP Addresses
edutvb.cn resolves to one IP address: 154.89.97.221.
There are other host names — chanmingkonglin.cn among them — that share IP numbers with edutvb.cn.
Name Servers
DNS delegation for edutvb.cn points to two name servers: dm1.longmingdns.com and dm2.longmingdns.com.
edutvb.cn uses the same name servers as several other domains — among them gzvu.cn, 0755fs.cn, aqam.cn and two more.
Hostnames that resolve to two IP addresses:
dm2.longmingdns.com has two IP addresses: 183.253.57.197 and 211.99.99.56.
Hosts with just one IP address:
dm1.longmingdns.com directs to 218.98.111.163.