techclass.cn - robtex.com
techclass.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 38.177.142.222🇺🇸 AS39847838.177.128.0/18 PEG TECH INC PT-82 | ||||||
| PTR | host222.nappdeady.com | ||||||
| NS | ns1.nowcndns.com ⭐ | ||||||
| A | 1.193.216.204🇨🇳 CHINANET-Henan-Luoyang-IDC1.193.216.0/24 Chinatelecom HeNan Province Network | ||||||
| A | 218.98.111.129🇩🇪 HKCICL-AS-AP218.98.111.0/24 HONG KONG COMMUNICATIONS INTERNATIONAL CO.,LIMITED | ||||||
| A | 218.98.111.138🇩🇪 HKCICL-AS-AP218.98.111.0/24 HONG KONG COMMUNICATIONS INTERNATIONAL CO.,LIMITED | ||||||
| NS | ns2.nowcndns.com | ||||||
| A | 61.158.128.11🇨🇳 CHINA169-Backbone61.158.128.0/17 CNC Group CHINA169 Henan Province Network | ||||||
| PTR | 11.128.158.61.ha.cnc | ||||||
| A | 183.253.57.202🇨🇳 CHINAMOBILE-CN183.253.0.0/16 CMI (Customer Route) | ||||||
| A | 211.99.99.38🇨🇳 DONGGUAN-1211.99.99.0/24 Proxy-registered route object | ||||||
| SOA | ns1.nowcndns.comadmin@nowcndns.com serial=1773131655 | ||||||
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=2034591988 | ||||||
Same first word
Similar names
DNS History
4 records (3 active, 1 former)
●NSns1.nowcndns.com2026-03-26 → 2026-03-27 · 2 obs
● 2026-03-27 05:18:06
●NSns2.nowcndns.com2026-03-26 → 2026-03-27 · 2 obs
● 2026-03-27 05:18:06
○A38.173.41.192026-03-26 → 2026-03-27 · 2 obs
○ 2026-03-27 05:18:06
●A38.177.142.2222026-03-26 → 2026-03-27 · 2 obs
● 2026-03-27 05:18:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn... | - |
| techclass.cn | ns1.nowcndns.com, ns2.nowcndns.com | - |
✅ Authoritative Response
Server:1.193.216.204
NS records: ns1.nowcndns.com, ns2.nowcndns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for techclass.cn (unsigned zone)
⏱️ Timing
Total: 1791ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 38.177.142.222 |
| NS | 2 | ns1.nowcndns.com, ns2.nowcndns.com |
| SOA | 1 | ns1.nowcndns.com admin.nowcndns.com |
Analysis
IP Addresses
techclass.cn resolves to one IP number: 38.177.142.222.
Other host names, for instance wohui365.cn, zjtlfz.cn, oaxj.cn, 54ziyuan.cn and b7600.cn share IP numbers with techclass.cn.
Name Servers
techclass.cn's delegation uses two name servers: ns1.nowcndns.com and ns2.nowcndns.com.
techclass.cn uses the same name server setup as other domains, such as oulihua.cn, hqman.cn, bkij.cn, iw6euo6.cn and fmji.cn.
Host names with three IP numbers:
The host name ns1.nowcndns.com resolves to 1.193.216.204, 218.98.111.129 and 218.98.111.138.
The host name ns2.nowcndns.com resolves to 61.158.128.11, 183.253.57.202 and 211.99.99.38.