iszn.cn - robtex.com
iszn.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 207.57.203.199🇺🇸 USZNI-AS-AP207.57.192.0/18 Starcloud - Nebula | ||||||
| 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=1768990626 | ||||||
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=2034660022 | ||||||
Same first word
Similar names
DNS History
7 records (3 active, 4 former)
○NSns1.dns.com2017-05-26 → 2017-05-26 · 4 obs
○ 2016-04-04 17:09:28
● 2017-05-26 11:14:04
○ 2026-03-26 07:32:00
○ 2026-04-11 20:05:18
● 2017-05-26 11:14:04
○ 2026-03-26 07:32:00
○ 2026-04-11 20:05:18
○NSns1.dns.com.cn2015-10-26 → 2016-04-04 · 4 obs
● 2015-10-26 06:07:42
● 2016-04-04 17:09:28
○ 2017-05-26 11:14:04
○ 2026-04-11 20:05:18
● 2016-04-04 17:09:28
○ 2017-05-26 11:14:04
○ 2026-04-11 20:05:18
●NSns1.nowcndns.com2026-03-26 → 2026-04-11 · 3 obs
○ 2017-05-26 11:14:04
● 2026-03-26 07:32:00
● 2026-04-11 20:05:18
● 2026-03-26 07:32:00
● 2026-04-11 20:05:18
○NSns2.dns.com.cn2015-10-26 → 2016-04-04 · 4 obs
● 2015-10-26 06:07:42
● 2016-04-04 17:09:28
○ 2017-05-26 11:14:04
○ 2026-04-11 20:05:18
● 2016-04-04 17:09:28
○ 2017-05-26 11:14:04
○ 2026-04-11 20:05:18
●NSns2.nowcndns.com2026-03-26 → 2026-04-11 · 3 obs
○ 2017-05-26 11:14:04
● 2026-03-26 07:32:00
● 2026-04-11 20:05:18
● 2026-03-26 07:32:00
● 2026-04-11 20:05:18
○A173.247.235.1572017-05-26 → 2017-05-26 · 3 obs
● 2017-05-26 11:14:04
○ 2026-03-26 07:32:00
○ 2026-04-11 20:05:18
○ 2026-03-26 07:32:00
○ 2026-04-11 20:05:18
●A207.57.203.1992026-03-26 → 2026-04-11 · 3 obs
○ 2017-05-26 11:14:04
● 2026-03-26 07:32:00
● 2026-04-11 20:05:18
● 2026-03-26 07:32:00
● 2026-04-11 20:05:18
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, c.dns.cn, b.dns.cn, d.dns.cn... | - |
| iszn.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 iszn.cn (unsigned zone)
⏱️ Timing
Total: 1589ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 207.57.203.199 |
| NS | 2 | ns1.nowcndns.com, ns2.nowcndns.com |
| SOA | 1 | ns1.nowcndns.com admin.nowcndns.com |
Analysis
IP Addresses
iszn.cn points to IP number: 207.57.203.199.
Other host names, for instance fengchuixue.cn and njmeidi.cn, share IP numbers with iszn.cn.
Name Servers
iszn.cn is delegated to two name servers: ns1.nowcndns.com and ns2.nowcndns.com.
iszn.cn shares the same name server setup as szbjzx.com.cn, 39461.cn, nnkld.cn, fnvalve.cn and 20244.cn.
Host names with three IP numbers: ns1.nowcndns.com points to 1.193.216.204, 218.98.111.129 and 218.98.111.138; ns2.nowcndns.com points to 61.158.128.11, 183.253.57.202 and 211.99.99.38.