duwb.cn - robtex.com
duwb.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 45.42.80.6🇺🇸 HENGTONG-145.42.80.0/20 HengTong IDC LLC | ||||||
| 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=1775120144 | ||||||
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=2034661180 | ||||||
Same first word
duwb.cn |
Similar names
wbdu.com |
bwdu.cn |
dubw.cn |
wudb.com |
budw.net |
bwud.de |
wbud.ru |
ubwd.com |
buwd.cn |
buwd.de |
udbw.com |
ubwd.xyz |
wdub.de |
ubdw.de |
wubd.com |
DNS History
13 records (3 active, 10 former)
○NSdns1.iidns.com2016-04-22 → 2016-04-22 · 3 obs
○ 2017-01-29 16:11:42
○ 2026-04-12 04:40:14
○NSdns10.hichina.com2017-01-29 → 2017-01-29 · 4 obs
● 2017-01-29 16:11:42
○ 2026-03-21 01:49:54
○ 2026-04-12 04:40:14
○NSdns2.iidns.com2016-04-22 → 2016-04-22 · 3 obs
○ 2017-01-29 16:11:42
○ 2026-04-12 04:40:14
○NSdns3.iidns.com2016-04-22 → 2016-04-22 · 3 obs
○ 2017-01-29 16:11:42
○ 2026-04-12 04:40:14
○NSdns4.iidns.com2016-04-22 → 2016-04-22 · 3 obs
○ 2017-01-29 16:11:42
○ 2026-04-12 04:40:14
○NSdns5.iidns.com2016-04-22 → 2016-04-22 · 3 obs
○ 2017-01-29 16:11:42
○ 2026-04-12 04:40:14
○NSdns6.iidns.com2016-04-22 → 2016-04-22 · 3 obs
○ 2017-01-29 16:11:42
○ 2026-04-12 04:40:14
○NSdns9.hichina.com2017-01-29 → 2017-01-29 · 4 obs
● 2017-01-29 16:11:42
○ 2026-03-21 01:49:54
○ 2026-04-12 04:40:14
●NSns1.nowcndns.com2026-03-21 → 2026-04-12 · 3 obs
● 2026-03-21 01:49:54
● 2026-04-12 04:40:14
●NSns2.nowcndns.com2026-03-21 → 2026-04-12 · 3 obs
● 2026-03-21 01:49:54
● 2026-04-12 04:40:14
○A123.108.110.782016-04-22 → 2016-04-22 · 3 obs
○ 2017-01-29 16:11:42
○ 2026-04-12 04:40:14
○A172.87.195.1982026-03-21 → 2026-03-28 · 4 obs
● 2026-03-21 01:49:54
● 2026-03-28 09:37:12
○ 2026-04-12 04:40:14
●A45.42.80.62026-04-12 → 2026-04-12 · 2 obs
● 2026-04-12 04:40:14
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn... | - |
| duwb.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 duwb.cn (unsigned zone)
⏱️ Timing
Total: 1933ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 45.42.80.6 |
| NS | 2 | ns1.nowcndns.com, ns2.nowcndns.com |
| SOA | 1 | ns1.nowcndns.com admin.nowcndns.com |
Analysis
IP Addresses
duwb.cn points to IP number 45.42.80.6.
For instance, other host names dnjwzp8.nenyh.cn, 5xh0280m.nenyh.cn, akuya.cn, hti256.nenyh.cn and nenyh.cn share IP numbers with duwb.cn.
Name Servers
duwb.cn is delegated to two name servers: ns1.nowcndns.com and ns2.nowcndns.com.
duwb.cn uses the same name server setup as other domains such as 5towns.cn, xx9999.cn, glsktsh.com.cn, gdhenghui.cn and lmcab61.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.