f251.cn - robtex.com
f251.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 38.173.43.239🇺🇸 AS39847838.173.0.0/18 PEG TECH INC | ||||||
| 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=1766645646 | ||||||
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=2034593094 | ||||||
Same first word
f251.cn |
Similar names
DNS History
12 records (3 active, 9 former)
○NSns1.22.cn2015-12-14 → 2016-05-09 · 4 obs
● 2016-05-09 05:24:56
○ 2017-01-18 12:54:46
○ 2026-03-27 10:11:20
●NSns1.nowcndns.com2026-02-26 → 2026-03-27 · 3 obs
● 2026-02-26 15:43:36
● 2026-03-27 10:11:20
○NSns2.22.cn2016-01-29 → 2016-01-29 · 4 obs
● 2016-01-29 13:46:10
○ 2017-01-18 12:54:46
○ 2026-03-27 10:11:20
●NSns2.nowcndns.com2026-02-26 → 2026-03-27 · 3 obs
● 2026-02-26 15:43:36
● 2026-03-27 10:11:20
○NSns3.22.cn2016-01-29 → 2016-01-29 · 4 obs
● 2016-01-29 13:46:10
○ 2017-01-18 12:54:46
○ 2026-03-27 10:11:20
○NSns4.22.cn2016-01-29 → 2016-01-29 · 4 obs
● 2016-01-29 13:46:10
○ 2017-01-18 12:54:46
○ 2026-03-27 10:11:20
○A107.167.19.722016-01-29 → 2016-01-29 · 3 obs
○ 2016-05-09 05:24:56
○ 2026-03-27 10:11:20
○A107.167.19.732016-01-29 → 2016-01-29 · 3 obs
○ 2016-05-09 05:24:56
○ 2026-03-27 10:11:20
○A107.167.19.742016-05-09 → 2016-05-09 · 4 obs
● 2016-05-09 05:24:56
○ 2017-01-18 12:54:46
○ 2026-03-27 10:11:20
○A107.167.19.752016-05-09 → 2016-05-09 · 4 obs
● 2016-05-09 05:24:56
○ 2017-01-18 12:54:46
○ 2026-03-27 10:11:20
●A38.173.43.2392026-02-26 → 2026-03-27 · 3 obs
● 2026-02-26 15:43:36
● 2026-03-27 10:11:20
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn... | - |
| f251.cn | ns1.nowcndns.com, ns2.nowcndns.com | - |
✅ Authoritative Response
Server:183.253.57.202
NS records: ns1.nowcndns.com, ns2.nowcndns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for f251.cn (unsigned zone)
⏱️ Timing
Total: 4540ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 38.173.14.204 |
| NS | 2 | ns1.nowcndns.com, ns2.nowcndns.com |
| SOA | 1 | ns1.nowcndns.com admin.nowcndns.com |
Analysis
IP Addresses
f251.cn points to a single IP number: 38.173.43.239.
Other host names, for instance snryw.cn, irgx.cn, dx51d.cn, aosk.com.cn and cookpyc.cn share IP numbers with f251.cn.
Name Servers
f251.cn is delegated to two name servers: ns1.nowcndns.com and ns2.nowcndns.com.
f251.cn uses the same name server setup as other domains, for instance taandta.com.cn, shcuirushi.com.cn, 356890.cn, iwuxin.cn and cmyou.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.