dcu.su - dns.ninja

`dcu.su`

DNSSEC	⚠️ Not signed
A	82.97.243.107^{🇦🇺 TimeWeb-AS82.97.243.0/24}
NS	`ns1.rf.ru` ⭐
		A	80.249.147.221^{🇷🇺 SELECTEL80.249.144.0/22 -NET}
			PTR	`razina.ru`
NS	`ns2.rf.ru`
		A	80.249.147.221^{🇷🇺 SELECTEL80.249.144.0/22 -NET}
			PTR	`razina.ru`
TXT	`1RHu5HFTnsoiz9fXiL7wNgrP9O0rkHVjD7gAy3vcLxjXq94TU6`
SOA	`ns1.rf.ru`hostmaster@dcu.su 2026-04-14 #4

`su`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.dns.ripn.net` ⭐
	NS	`b.dns.ripn.net`
	NS	`d.dns.ripn.net`
	NS	`e.dns.ripn.net`
	NS	`f.dns.ripn.net`
	SOA	`a.dns.ripn.net`hostmaster@ripn.net serial=650209604

Same first word

dcu.kr

dcu.co.za

dcu.ru

dcu.info

dcu.my

dcu.org.cn

dcu.academy

dcu.dk

dcu.ac.jp

dcu.co

dcu.ie

dcu.cn

dcu.nu

dcu.org

dcu.me

dcu.com.au

dcu.ac.kr

dcu.at

dcu.org.uk

dcu.ro

dcu.cc

dcu.gr

dcu.be

dcu.ch

dcu.com

dcu.su

dcu.org.ua

dcu.in

dcu.net

dcu.ca

dcu.cz

dcu.ua

Similar names

cdu.edu.ua

udc.es

udc.com.mx

cud.re.kr

cdu.cz

udc.ie

duc.at

cdu.events

udc.ru

cud.co.jp

udc.pt

duc.si

duc.jp

cud.com.mx

ucd.ie

ucd.money

udc.bg

cdu.one

udc.ch

udc.pl

cud.fr

duc.lu

udc.com

ucd.at

duc.com.mx

cud.com.au

duc.edu.iq

cdu.cn

cdu.eu

cdu.fr

cud.moda

cdu.watch

cud.io

duc.koeln

cud.pl

cdu.nu

ucd.it

udc.edu.ar

udc.org.bw

duc.co.uk

cdu.al

udc.gal

cud.co

ucd.ac.ma

udc.com.vn

udc.tv

udc.com.ua

udc.com.tr

ucd.co.za

duc.co.za

ucd.org.mx

cdu.pt

duc.nl

cdu.vision

udc.edu.br

cdu.plus

cud.org.pl

duc.edu.gh

udc.co.uk

cdu.de

ucd.uz

duc.ca

cud.info

duc.one

udc.org

cdu.cl

cud.at

cdu.com

ucd.se

cdu.jetzt

cdu.website

ucd.com.mx

duc.vn

duc.me

udc.nl

udc.hk

cud.ac.ae

duc.kr

duc.es

cdu.at

cud.eu

duc.hu

cdu.ca

cdu.co

udc.cw

udc.cc

udc.mx

DNS History

16 records (3 active, 13 former)

○NSexpirepages-kiae-1.nic.ru2015-12-13 → 2015-12-13 · 4 obs

○ 2015-10-01 15:41:26
● 2015-12-13 12:31:56
○ 2016-03-16 14:33:54
○ 2026-06-25 11:31:40

○NSexpirepages-kiae-2.nic.ru2015-12-13 → 2015-12-13 · 4 obs

○ 2015-10-01 15:41:26
● 2015-12-13 12:31:56
○ 2016-03-16 14:33:54
○ 2026-06-25 11:31:40

○NSns1.poishi.com2015-07-23 → 2016-12-02 · 11 obs

● 2015-07-23 19:44:48
● 2015-10-01 15:41:26
○ 2015-12-13 12:31:56
○ 2016-03-16 14:33:54
● 2016-07-29 11:51:18
○ 2016-08-21 18:48:14
○ 2016-09-23 22:05:58
● 2016-10-26 16:15:12
● 2016-12-02 03:54:02
○ 2017-03-03 17:56:46
○ 2026-06-25 11:31:40

●NSns1.rf.ru2020-10-16 → 2026-06-25 · 3 obs

○ 2017-03-03 17:56:46
● 2020-10-16 08:58:20
● 2026-06-25 11:31:40

○NSns1.sedoparking.com2015-07-23 → 2017-03-03 · 12 obs

● 2015-07-23 19:44:48
● 2015-10-01 15:41:26
○ 2015-12-13 12:31:56
● 2016-03-16 14:33:54
○ 2016-07-29 11:51:18
● 2016-08-21 18:48:14
● 2016-09-23 22:05:58
○ 2016-10-26 16:15:12
○ 2016-12-02 03:54:02
● 2017-03-03 17:56:46
○ 2020-10-16 08:58:20
○ 2026-06-25 11:31:40

○NSns2.poishi.com2016-07-29 → 2016-12-02 · 8 obs

○ 2016-03-16 14:33:54
● 2016-07-29 11:51:18
○ 2016-08-21 18:48:14
○ 2016-09-23 22:05:58
● 2016-10-26 16:15:12
● 2016-12-02 03:54:02
○ 2017-03-03 17:56:46
○ 2026-06-25 11:31:40

●NSns2.rf.ru2020-10-16 → 2026-06-25 · 3 obs

○ 2017-03-03 17:56:46
● 2020-10-16 08:58:20
● 2026-06-25 11:31:40

○NSns2.sedoparking.com2015-07-23 → 2017-03-03 · 12 obs

○MXlocalhost2016-08-21 → 2016-12-02 · 5 obs

○ 2015-10-01 15:41:26
● 2016-08-21 18:48:14
● 2016-12-02 03:54:02
○ 2017-03-03 17:56:46
○ 2026-06-25 11:31:40

○MXmail.nickstel.com2015-07-23 → 2015-07-23 · 3 obs

● 2015-07-23 19:44:48
○ 2015-10-01 15:41:26
○ 2026-06-25 11:31:40

○A109.70.26.372015-12-13 → 2015-12-13 · 4 obs

○ 2015-10-01 15:41:26
● 2015-12-13 12:31:56
○ 2016-03-16 14:33:54
○ 2026-06-25 11:31:40

○A194.85.61.762015-12-13 → 2015-12-13 · 4 obs

○ 2015-10-01 15:41:26
● 2015-12-13 12:31:56
○ 2016-03-16 14:33:54
○ 2026-06-25 11:31:40

○A5.188.131.102020-10-16 → 2026-03-28 · 5 obs

○ 2017-03-03 17:56:46
● 2020-10-16 08:58:20
● 2026-03-28 00:08:10
○ 2026-04-17 18:02:10
○ 2026-06-25 11:31:40

○A72.52.4.1192015-07-23 → 2017-03-03 · 11 obs

● 2015-07-23 19:44:48
● 2015-10-01 15:41:26
○ 2015-12-13 12:31:56
○ 2016-07-29 11:51:18
● 2016-08-21 18:48:14
○ 2016-09-23 22:05:58
● 2016-10-26 16:15:12
○ 2016-12-02 03:54:02
● 2017-03-03 17:56:46
○ 2020-10-16 08:58:20
○ 2026-06-25 11:31:40

●A82.97.243.1072026-04-17 → 2026-06-25 · 3 obs

○ 2026-03-28 00:08:10
● 2026-04-17 18:02:10
● 2026-06-25 11:31:40

○A82.98.86.1692015-07-23 → 2016-12-02 · 8 obs

● 2015-07-23 19:44:48
● 2016-07-29 11:51:18
○ 2016-08-21 18:48:14
● 2016-09-23 22:05:58
○ 2016-10-26 16:15:12
● 2016-12-02 03:54:02
○ 2017-03-03 17:56:46
○ 2026-06-25 11:31:40

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
su	a.dns.ripn.net, b.dns.ripn.net, d.dns.ripn.net, e.dns.ripn.net...	-
dcu.su	ns1.rf.ru, ns2.rf.ru	-

✅ Authoritative Response

Server:80.249.147.221

NS records: ns1.rf.ru, ns2.rf.ru

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for dcu.su (unsigned zone)

⏱️ Timing

Total: 966ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`82.97.243.107`
NS	2	`ns2.rf.ru, ns1.rf.ru`
TXT	1	`1RHu5HFTnsoiz9fXiL7wNgrP9O0rkHVjD7gAy3vc`
SOA	1	`ns1.rf.ru hostmaster.dcu.su`

Analysis

IP Addresses

dcu.su resolves to one IP address: 82.97.243.107.

hcat.ru, ixj.ru, stroy-rostov.ru and two other host names share IP numbers with dcu.su.

Name Servers

dcu.su uses two name servers for its delegation: ns1.rf.ru and ns2.rf.ru.

dcu.su uses the same name servers as several other domains — among them gsj.ru, bloglist.ru, obed.su and two more.

The name servers for dcu.su are partially shared with other domains like pushkino.su, xn--80aqfj.xn--p1ai and xn--80aaah1buh3a7c.xn--p1ai

These name servers are frequently paired with the name servers ns2.domeny-rf.ru, ns1.domeny-rf.ru and a.misconfigured.dns.server.invalid.

ns1.rf.ru resolves to 80.249.147.221; ns2.rf.ru resolves to the same IP address, 80.249.147.221.

Both ns1.rf.ru and ns2.rf.ru resolve to 80.249.147.221 IP addresses each.