duuc.cn - robtex.com
duuc.cn
cn
| DNSSEC | ⚠️ Not signed | ||||||
| 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=2034546407 | ||||||
Same first word
Similar names
ducu.cn |
ducu.ro |
cudu.de |
uudc.com.cn |
cudu.eu |
cudu.gr |
cuud.net |
ucdu.org |
ducu.de |
udcu.cc |
uucd.ca |
dcuu.cn |
uucd.com |
cduu.net |
ducu.com |
uudc.cn |
uucd.org |
DNS History
17 records (2 active, 15 former)
○NSdns1.everdns.com2017-03-18 → 2017-03-18 · 4 obs
● 2017-03-18 23:13:36
○ 2020-02-03 03:33:16
○ 2026-03-24 04:33:48
○NSdns1.iidns.com2016-06-20 → 2016-06-20 · 3 obs
○ 2017-03-18 23:13:36
○ 2026-03-24 04:33:48
●NSdns17.hichina.com2020-02-03 → 2026-03-24 · 3 obs
● 2020-02-03 03:33:16
● 2026-03-24 04:33:48
●NSdns18.hichina.com2020-02-03 → 2026-03-24 · 3 obs
● 2020-02-03 03:33:16
● 2026-03-24 04:33:48
○NSdns2.iidns.com2016-06-20 → 2016-06-20 · 3 obs
○ 2017-03-18 23:13:36
○ 2026-03-24 04:33:48
○NSdns3.iidns.com2016-06-20 → 2016-06-20 · 3 obs
○ 2017-03-18 23:13:36
○ 2026-03-24 04:33:48
○NSdns4.iidns.com2016-06-20 → 2016-06-20 · 3 obs
○ 2017-03-18 23:13:36
○ 2026-03-24 04:33:48
○NSdns5.iidns.com2016-06-20 → 2016-06-20 · 3 obs
○ 2017-03-18 23:13:36
○ 2026-03-24 04:33:48
○NSdns6.iidns.com2016-06-20 → 2016-06-20 · 3 obs
○ 2017-03-18 23:13:36
○ 2026-03-24 04:33:48
○A103.241.230.1352017-03-18 → 2017-03-18 · 4 obs
● 2017-03-18 23:13:36
○ 2020-02-03 03:33:16
○ 2026-03-24 04:33:48
○A103.241.230.1372017-03-18 → 2017-03-18 · 4 obs
● 2017-03-18 23:13:36
○ 2020-02-03 03:33:16
○ 2026-03-24 04:33:48
○A103.241.230.1382017-03-18 → 2017-03-18 · 4 obs
● 2017-03-18 23:13:36
○ 2020-02-03 03:33:16
○ 2026-03-24 04:33:48
○A103.241.230.1392017-03-18 → 2017-03-18 · 4 obs
● 2017-03-18 23:13:36
○ 2020-02-03 03:33:16
○ 2026-03-24 04:33:48
○A107.167.19.742016-06-20 → 2016-06-20 · 3 obs
○ 2017-03-18 23:13:36
○ 2026-03-24 04:33:48
○A107.167.19.752016-06-20 → 2016-06-20 · 3 obs
○ 2017-03-18 23:13:36
○ 2026-03-24 04:33:48
○A47.91.170.2222020-02-03 → 2020-02-03 · 4 obs
● 2020-02-03 03:33:16
○ 2026-03-02 01:37:54
○ 2026-03-24 04:33:48
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | d.dns.cn, e.dns.cn, a.dns.cn, c.dns.cn... | - |
| duuc.cn | dns17.hichina.com, dns18.hichina.com | - |
✅ Authoritative Response
Server:47.118.199.222
NS records: dns17.hichina.com, dns18.hichina.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for duuc.cn (unsigned zone)
⏱️ Timing
Total: 3573ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | dns17.hichina.com, dns18.hichina.com |
| SOA | 1 | dns17.hichina.com hostmaster.hichina.com |
Analysis
Name Servers
duuc.cn's delegation is to two name servers dns17.hichina.com and dns18.hichina.com.
duuc.cn shares the same name server configuration as other domains, such as durenjie.com.cn, arctow.com, hnsjxsh.cn, rusi.cn and dlxc.com.
duuc.cn at least partially shares its name servers with other domains, for instance dake.pro, 518a.com, uni-links.com.cn, 1fuling.com and gamwan.com.
these name servers are commonly used together with expirens3.hichina.com, expirens4.hichina.com, ns1.alidns.com and ns2.alidns.com.
Host names with nine IP numbers: dns17.hichina.com points to 2408:4009:501::25, 39.96.153.40, 39.96.153.60, 47.118.199.200, 47.118.199.220, 120.76.107.40, 120.76.107.60, 139.224.142.100 and 139.224.142.110; dns18.hichina.com points to 2408:4009:501::26, 39.96.153.38, 39.96.153.61, 47.118.199.198, 47.118.199.222, 120.76.107.38, 120.76.107.61, 139.224.142.98 and 139.224.142.108.