cdtu.com - dns.ninja

cdtu.com

DNSSEC⚠️ Not signed
A43.166.6.192🇸🇬 TENCENT-NET-AP-CN43.166.0.0/18 ACEVILLE PTE.LTD. 16 COLLYER QUAY 18-29 INCOME AT RAFFLES
NSns3.afternic.com ⭐ ⚠️ Not in zone NS records
A97.74.98.65🇺🇸 GODADDY-DNS97.74.98.0/23
PTRns3.afternic.com
NSns1.yuwang.com ⚠️ Not in zone NS records
A101.35.24.44🇨🇳 TENCENT-NET-AP101.35.0.0/18 CTJS-NJJS-IDC-tencent
NSns2.yuwang.com ⚠️ Not in zone NS records
A101.35.24.44🇨🇳 TENCENT-NET-AP101.35.0.0/18 CTJS-NJJS-IDC-tencent
NSns4.afternic.com ⚠️ Not in zone NS records
A173.201.66.65🇺🇸 GODADDY-DNS173.201.66.0/23
PTRns4.namefind.com
NSverification-kpzhmhhmpiyp2xjwkszdey.ns101.verify.hn ⚠️ Not in zone NS records
A13.248.169.48🇺🇸 Amazon13.248.160.0/20
PTRa904c694c05102f30.awsglobalaccelerator.com
A76.223.54.146🇺🇸 Amazon76.223.48.0/20
PTRa904c694c05102f30.awsglobalaccelerator.com
TXTv=spf1 -all
SOAns3.afternic.comdns@jomax.net 2025-10-01 #0

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1785986039

Same first word

cdtu.edu.cn
cdtu.cn
cdtu.com
cdtu.net
cdtu.cl

Similar names

udct.org
cdut.com
tudc.shop
dcut.com
duct.co.kr
duct.ca
duct.co
cdut.com.cn
dutc.cn
cudt.de
cdut.kiev.ua
duct.eu
dcut.co.il
cdut.cn
duct.mobi
ctdu.cn
dtcu.cn
cutd.com
dctu.net
tudc.cz
dtcu.com
uctd.com.cn
tudc.com
tdcu.com
cutd.de
dctu.com
duct.it
duct.nl
cutd.net
utcd.edu.py
dutc.nl
utcd.de
cdut.lviv.ua
cdut.ro
cdut.de
ucdt.net
duct.ro
duct.guru
cudt.cn
duct.cc
udct.com
duct.ru
dcut.ru
ctdu.org
tduc.com
tcud.com
tduc.vn
cudt.org
tudc.com.au
duct.us
dtuc.com
udtc.com
duct.jp
ctdu.ru
duct.com
dcut.it
dtcu.org
cudt.com.cn
cdut.com.ua
utdc.com.br
duct.org.za
cdut.net
cdut.edu.cn
utcd.com
utcd.net
duct.me
tudc.org
dtcu.net
ucdt.org
duct.ind.br
cdut.ru
duct.de
utcd.org.tr
tudc.org.au
cudt.com
duct.biz
duct.net

DNS History

13 records (6 active, 7 former)

200920112013201520172019202120232025NSns1.yuwang.comns2.yuwang.comns3.afternic.comns4.afternic.comverification-kpzhmhhmpiyp2xjwkszdey.ns101.verify.hnns.dns.net.cnns7.dns.net.cnMXmx.cnc.jia.netA43.166.6.19213.248.169.4847.75.168.15458.30.16.24376.223.54.146
○NSns.dns.net.cn2015-07-02 → 2017-02-01 · 8 obs
○ 2008-03-19 15:17:52
● 2015-07-02 08:27:54
● 2015-11-11 17:29:50
○ 2016-02-02 15:06:10
● 2016-04-23 02:31:46
● 2017-02-01 02:40:50
○ 2026-02-25 02:44:36
○ 2026-08-06 03:17:08
●NSns1.yuwang.com2026-02-25 → 2026-08-06 · 3 obs
○ 2017-02-01 02:40:50
● 2026-02-25 02:44:36
● 2026-08-06 03:17:08
●NSns2.yuwang.com2026-02-25 → 2026-08-06 · 3 obs
○ 2017-02-01 02:40:50
● 2026-02-25 02:44:36
● 2026-08-06 03:17:08
●NSns3.afternic.com2026-02-25 → 2026-08-06 · 3 obs
○ 2017-02-01 02:40:50
● 2026-02-25 02:44:36
● 2026-08-06 03:17:08
●NSns4.afternic.com2026-02-25 → 2026-08-06 · 3 obs
○ 2017-02-01 02:40:50
● 2026-02-25 02:44:36
● 2026-08-06 03:17:08
○NSns7.dns.net.cn2015-07-02 → 2017-02-01 · 8 obs
○ 2008-03-19 15:17:52
● 2015-07-02 08:27:54
○ 2015-11-11 17:29:50
● 2016-02-02 15:06:10
○ 2016-04-23 02:31:46
● 2017-02-01 02:40:50
○ 2026-02-25 02:44:36
○ 2026-08-06 03:17:08
●NSverification-kpzhmhhmpiyp2xjwkszdey.ns101.verify.hn2026-02-25 → 2026-08-06 · 3 obs
○ 2017-02-01 02:40:50
● 2026-02-25 02:44:36
● 2026-08-06 03:17:08
○MXmx.cnc.jia.net2015-07-02 → 2017-02-01 · 5 obs
○ 2008-03-19 15:17:52
● 2015-07-02 08:27:54
● 2017-02-01 02:40:50
○ 2026-02-25 02:44:36
○ 2026-08-06 03:17:08
○A13.248.169.482026-05-11 → 2026-06-02 · 7 obs
○ 2026-02-25 02:44:36
○ 2026-04-27 05:43:56
● 2026-05-11 21:36:38
○ 2026-05-31 20:34:52
● 2026-06-02 08:08:02
○ 2026-07-18 22:15:32
○ 2026-08-06 03:17:08
●A43.166.6.1922026-02-25 → 2026-08-06 · 8 obs
○ 2020-01-19 11:46:48
● 2026-02-25 02:44:36
● 2026-04-27 05:43:56
○ 2026-05-11 21:36:38
● 2026-05-31 20:34:52
○ 2026-06-02 08:08:02
● 2026-07-18 22:15:32
● 2026-08-06 03:17:08
○A47.75.168.1542020-01-19 → 2020-01-19 · 4 obs
○ 2017-02-01 02:40:50
● 2020-01-19 11:46:48
○ 2026-02-25 02:44:36
○ 2026-08-06 03:17:08
○A58.30.16.2432015-07-02 → 2017-02-01 · 5 obs
○ 2008-03-19 15:17:52
● 2015-07-02 08:27:54
● 2017-02-01 02:40:50
○ 2020-01-19 11:46:48
○ 2026-08-06 03:17:08
○A76.223.54.1462026-05-11 → 2026-06-02 · 7 obs
○ 2026-02-25 02:44:36
○ 2026-04-27 05:43:56
● 2026-05-11 21:36:38
○ 2026-05-31 20:34:52
● 2026-06-02 08:08:02
○ 2026-07-18 22:15:32
○ 2026-08-06 03:17:08

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comb.gtld-servers.net, i.gtld-servers.net, h.gtld-servers.net, g.gtld-servers.net...-
cdtu.comns3.afternic.com, ns4.afternic.com, ns1.yuwang.com, ns2.yuwang.com...4 records

✅ Authoritative Response

Server:97.74.98.65

NS records: ns3.afternic.com, ns4.afternic.com, ns1.yuwang.com, ns2.yuwang.com, verification-kpzhmhhmpiyp2xjwkszdey.ns101.verify.hn

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cdtu.com (unsigned zone)

⏱️ Timing

Total: 4930ms | Queries: -

📄 Records

TypeCountSample Data
A143.166.6.192
MX1. (pri: 0)
TXT1v=spf1 -all
SOA1ns3.afternic.com dns.jomax.net

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns3.afternic.com, ns4.afternic.com, ns1.yuwang.com...)

Analysis

IP Addresses

cdtu.com has exactly one IP address — 43.166.6.192.

vctest.gdyn.com, yhks.com, czja.com plus two other host names have IP numbers in common with cdtu.com.

Name Servers

Five name servers handle delegation for cdtu.com: ns3.afternic.com, ns4.afternic.com, ns1.yuwang.com and two others.

There is at least partial name server overlap between cdtu.com and other domains — kegroup.net, marbleclean.com, vistase.com and two more among them.

These name servers tend to appear together with the name servers ns2.yuwang.com, verification-kpzhmhhmpiyp2xjwkszdey.ns101.verify.hn and ns1.dnsip.com, plus two others.

Host names pointing to two IP addresses:

verification-kpzhmhhmpiyp2xjwkszdey.ns101.verify.hn resolves to 13.248.169.48 and 76.223.54.146.

Host names resolving to a single IP address:

ns3.afternic.com resolves to 97.74.98.65.

ns4.afternic.com resolves to 173.201.66.65.

ns1.yuwang.com resolves to 101.35.24.44.

ns2.yuwang.com resolves to 101.35.24.44.

The host names ns1.yuwang.com and ns2.yuwang.com both resolve to 101.35.24.44 IP addresses.