lenclassroom.com - robtex.com
lenclassroom.com
| 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 Proxy-registered route object | ||||||
| SOA | dm1.longmingdns.comdnsadmin@longmingdns.com serial=1773802821 | ||||||
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1777347871 | ||||||
Same first word
lenclassroom.com |
DNS History
7 records (2 active, 5 former)
●NSdm1.longmingdns.com2026-04-28 → 2026-04-28 · 2 obs
○ 2026-02-20 11:29:44
● 2026-04-28 03:56:30
● 2026-04-28 03:56:30
●NSdm2.longmingdns.com2026-04-28 → 2026-04-28 · 2 obs
○ 2026-02-20 11:29:44
● 2026-04-28 03:56:30
● 2026-04-28 03:56:30
○NSexpirens3.hichina.com2026-02-20 → 2026-02-20 · 2 obs
● 2026-02-20 11:29:44
○ 2026-04-28 03:56:30
○ 2026-04-28 03:56:30
○NSexpirens4.hichina.com2026-02-20 → 2026-02-20 · 2 obs
● 2026-02-20 11:29:44
○ 2026-04-28 03:56:30
○ 2026-04-28 03:56:30
○NSns7.alidns.com2026-02-20 → 2026-02-20 · 2 obs
● 2026-02-20 11:29:44
○ 2026-04-28 03:56:30
○ 2026-04-28 03:56:30
○NSns8.alidns.com2026-02-20 → 2026-02-20 · 2 obs
● 2026-02-20 11:29:44
○ 2026-04-28 03:56:30
○ 2026-04-28 03:56:30
○CNAMEexpired.hichina.com2026-02-20 → 2026-02-20 · 2 obs
● 2026-02-20 11:29:44
○ 2026-04-28 03:56:30
○ 2026-04-28 03:56:30
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| lenclassroom.com | dm2.longmingdns.com, dm1.longmingdns.com | 5 records |
✅ Authoritative Response
Server:218.98.111.163
NS records: dm2.longmingdns.com, dm1.longmingdns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for lenclassroom.com (unsigned zone)
⏱️ Timing
Total: 590ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | dm1.longmingdns.com, dm2.longmingdns.com |
| SOA | 1 | dm1.longmingdns.com dnsadmin.longmingdns |
📌 Glue Records Collected
Total: 5
Out-of-bailiwick: 5 (dm2.longmingdns.com, dm2.longmingdns.com, dm2.longmingdns.com...)
Analysis
Name Servers
Two name servers dm1.longmingdns.com and dm2.longmingdns.com handle the delegation for lenclassroom.com.
lenclassroom.com shares the same name server setup as other domains, for instance ftet.cn, hsydty.cn, eastes.cn, nanchongjiaoyu.cn and go21.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.