nctu.ru - robtex.com

nctu.ru

DNSSEC⚠️ Not signed
A77.223.111.188🇷🇺 SELECTEL-MSK77.223.108.0/22 Selectel Route Object
NSns1.flexbe.ru ⭐
A77.223.111.181🇷🇺 SELECTEL-MSK77.223.108.0/22 Selectel Route Object
NSns2.flexbe.ru
A77.223.111.184🇷🇺 SELECTEL-MSK77.223.108.0/22 Selectel Route Object
NSns3.flexbe.ru
A77.223.111.187🇷🇺 SELECTEL-MSK77.223.108.0/22 Selectel Route Object
NSns4.flexbe.ru
A77.223.111.179🇷🇺 SELECTEL-MSK77.223.108.0/22 Selectel Route Object
SOAns1.flexbe.ruinfo@flexbe.ru 2026-07-26 #2

ru

DNSSEC🔒 Signed (DS record present)
NSa.dns.ripn.net ⭐
NSb.dns.ripn.net
NSc.tld-servers.ru
NSd.dns.ripn.net
NSe.dns.ripn.net
NSf.dns.ripn.net
SOAa.dns.ripn.nethostmaster@ripn.net serial=4069750

Same first word

nctu.edu.tw
nctu.com
nctu.edu.vn
nctu.edu.eg
nctu.co
nctu.info
nctu.moe
nctu.life
nctu.ru
nctu.me
nctu.org
nctu.today
nctu.cn
nctu.net

Similar names

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ncut.edu.cn
ntuc.co
(0x63756e74).net.au
(0x63756e74).live
untc.org
(0x63756e74).co.za
utcn.org.uk
(0x63756e74).life
untc.de
cnut.co.uk
cntu.ru
ntcu.de
(0x63756e74).info
cnut.jp
tnuc.org
(0x63756e74).cash
(0x63756e74).mx
(0x63756e74).co.nz
ncut.edu.tw
nuct.it
cutn.cn
cutn.sk
utcn.cn
ntcu.edu.tw
ntuc.org
untc.net.ua
cnut.de
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cntu.org
utcn.org
cutn.com
(0x63756e74).com
ncut.info
untc.com
cntu.org.br
ntuc.net
utnc.co.kr
(0x63756e74).de
tnuc.co.uk
unct.org
cutn.ac.in
untc.ua
utnc.com
unct.org.bt
cntu.kr.ua
tucn.ro
tunc.ru
cntu.com
tcnu.blogspot.com
nuct.de
ntcu.com.au
(0x63756e74).org.uk
(0x63756e74).cc
(0x63756e74).wtf
ncut.ru
cnut.com
(0x63756e74).cool
nutc.nl
ncut.org
ncut.com
unct.net
tucn.com
(0x63756e74).co.uk
(0x63756e74).tv
(0x63756e74).blue
untc.net
ntuc.org.uk
ucnt.net
(0x63756e74).dk
ntuc.org.sg
nutc.edu.tw
tunc.tv
(0x63756e74).org
cntu.xyz
(0x63756e74).be
untc.ru
cntu.com.br
(0x63756e74).in
tunc.nl
(0x63756e74).org.ua
ncut.co
(0x63756e74).biz
utcn.net
tucn.net
nutc.net
ncut.in
cntu.cn
ntcu.net
(0x63756e74).cn
ntuc.com.sg

DNS History

13 records (5 active, 8 former)

20162017201820192020202120222023202420252026NSns1.flexbe.runs2.flexbe.runs3.flexbe.runs4.flexbe.runs1.poishi.comns1.sedoparking.comns2.poishi.comns2.sedoparking.comMXlocalhostmail.nickstel.comA77.223.111.18872.52.4.9182.98.86.171
●NSns1.flexbe.ru2026-07-19 → 2026-07-26 · 3 obs
○ 2018-02-08 23:43:12
● 2026-07-19 12:09:16
● 2026-07-26 02:15:14
○NSns1.poishi.com2015-07-31 → 2016-12-23 · 13 obs
● 2015-07-31 20:29:08
○ 2015-10-04 16:03:26
○ 2015-11-23 21:49:52
● 2016-01-04 10:21:46
● 2016-02-16 17:28:02
○ 2016-02-24 20:50:26
● 2016-06-12 01:33:06
● 2016-08-02 04:06:56
○ 2016-09-02 02:34:12
● 2016-09-22 01:34:58
● 2016-12-23 19:24:08
○ 2018-02-08 23:43:12
○ 2026-07-26 02:15:14
○NSns1.sedoparking.com2015-07-31 → 2018-02-08 · 13 obs
● 2015-07-31 20:29:08
● 2015-11-23 21:49:52
○ 2016-01-04 10:21:46
○ 2016-02-16 17:28:02
● 2016-02-24 20:50:26
○ 2016-06-12 01:33:06
● 2016-08-02 04:06:56
● 2016-09-22 01:34:58
○ 2016-12-03 01:09:38
● 2016-12-23 19:24:08
● 2018-02-08 23:43:12
○ 2026-07-19 12:09:16
○ 2026-07-26 02:15:14
●NSns2.flexbe.ru2026-07-19 → 2026-07-26 · 3 obs
○ 2018-02-08 23:43:12
● 2026-07-19 12:09:16
● 2026-07-26 02:15:14
○NSns2.poishi.com2016-06-12 → 2016-12-03 · 8 obs
○ 2016-02-24 20:50:26
● 2016-06-12 01:33:06
● 2016-08-02 04:06:56
○ 2016-09-02 02:34:12
○ 2016-09-22 01:34:58
● 2016-12-03 01:09:38
○ 2016-12-23 19:24:08
○ 2026-07-26 02:15:14
○NSns2.sedoparking.com2015-07-31 → 2018-02-08 · 11 obs
● 2015-07-31 20:29:08
● 2016-02-24 20:50:26
○ 2016-06-12 01:33:06
○ 2016-08-02 04:06:56
● 2016-09-02 02:34:12
● 2016-09-22 01:34:58
○ 2016-12-03 01:09:38
● 2016-12-23 19:24:08
● 2018-02-08 23:43:12
○ 2026-07-19 12:09:16
○ 2026-07-26 02:15:14
●NSns3.flexbe.ru2026-07-19 → 2026-07-26 · 3 obs
○ 2018-02-08 23:43:12
● 2026-07-19 12:09:16
● 2026-07-26 02:15:14
●NSns4.flexbe.ru2026-07-19 → 2026-07-26 · 3 obs
○ 2018-02-08 23:43:12
● 2026-07-19 12:09:16
● 2026-07-26 02:15:14
○MXlocalhost2016-09-22 → 2016-12-23 · 5 obs
○ 2016-09-02 02:34:12
● 2016-09-22 01:34:58
● 2016-12-23 19:24:08
○ 2018-02-08 23:43:12
○ 2026-07-26 02:15:14
○MXmail.nickstel.com2015-07-31 → 2016-08-02 · 9 obs
● 2015-07-31 20:29:08
● 2015-11-10 06:07:20
○ 2015-11-23 21:49:52
○ 2016-02-16 17:28:02
● 2016-02-24 20:50:26
○ 2016-06-12 01:33:06
● 2016-08-02 04:06:56
○ 2016-09-02 02:34:12
○ 2026-07-26 02:15:14
○A72.52.4.912015-07-31 → 2016-12-23 · 15 obs
● 2015-07-31 20:29:08
● 2015-10-04 16:03:26
○ 2015-10-22 17:31:42
● 2015-10-25 01:17:42
● 2015-11-23 21:49:52
○ 2016-01-04 10:21:46
○ 2016-02-24 20:50:26
● 2016-06-12 01:33:06
● 2016-08-02 04:06:56
○ 2016-09-02 02:34:12
● 2016-09-22 01:34:58
○ 2016-12-03 01:09:38
● 2016-12-23 19:24:08
○ 2018-02-08 23:43:12
○ 2026-07-26 02:15:14
●A77.223.111.1882026-07-19 → 2026-07-26 · 3 obs
○ 2018-02-08 23:43:12
● 2026-07-19 12:09:16
● 2026-07-26 02:15:14
○A82.98.86.1712015-07-31 → 2018-02-08 · 15 obs
● 2015-07-31 20:29:08
● 2015-10-22 17:31:42
○ 2015-10-25 01:17:42
○ 2015-11-23 21:49:52
● 2016-01-04 10:21:46
● 2016-02-24 20:50:26
○ 2016-06-12 01:33:06
○ 2016-08-02 04:06:56
● 2016-09-02 02:34:12
○ 2016-09-22 01:34:58
● 2016-12-03 01:09:38
○ 2016-12-23 19:24:08
● 2018-02-08 23:43:12
○ 2026-07-19 12:09:16
○ 2026-07-26 02:15:14

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
rua.dns.ripn.net, b.dns.ripn.net, c.tld-servers.ru, d.dns.ripn.net...-
nctu.runs1.flexbe.ru, ns2.flexbe.ru, ns3.flexbe.ru, ns4.flexbe.ru4 records

✅ Authoritative Response

Server:77.223.111.179

NS records: ns1.flexbe.ru, ns2.flexbe.ru, ns3.flexbe.ru, ns4.flexbe.ru

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for nctu.ru (unsigned zone)

⏱️ Timing

Total: 951ms | Queries: -

📄 Records

TypeCountSample Data
A177.223.111.188
NS4ns3.flexbe.ru, ns1.flexbe.ru...
SOA1ns1.flexbe.ru info.flexbe.ru

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns1.flexbe.ru, ns2.flexbe.ru, ns3.flexbe.ru...)

Analysis

IP Addresses

nctu.ru resolves to just one IP address, 77.223.111.188.

Two other host names, along with mail.elektriki63.ru, profalpstroi.ru and deutschkurse.ru, also share IP numbers with nctu.ru.

Name Servers

The NS records for nctu.ru point to four name servers: ns1.flexbe.ru, ns2.flexbe.ru, ns3.flexbe.ru and ns4.flexbe.ru.

The name servers of nctu.ru overlap at least partially with those of other domains — among them uds.com.ua, e-vata.ru, lp391780.myflexbe.ru and two more.

The name servers ns3.flexbe.com, ns1.flexbe.com, ns2.flexbe.com and two others are commonly seen in use alongside these name servers.

The hosts ns1.flexbe.ru, ns2.flexbe.ru, ns3.flexbe.ru and ns4.flexbe.ru all resolve to exactly one IP address each: 77.223.111.181, 77.223.111.184, 77.223.111.187 and 77.223.111.179 respectively.