cob.su - dns.ninja

`cob.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	`rfru=1RHu5HFTnsoiz9fXiL7wNgrP9O0rkHVjD7gAy3vcLxjXq94TU6`
SOA	`ns1.rf.ru`hostmaster@cob.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=650209629

Subdomains

mail.cob.su

Same first word

cob.co

cob.eu

cob.de

cob.gr

cob.us

cob.mobi

cob.today

cob.cloud

cob.co.at

cob.tw

cob.org

cob.se

cob.s3.amazonaws.com

cob.com.cn

cob.cc

cob.edu.bs

cob.la

cob.kasserver.com

cob.ro

cob.su

cob.it

cob.me

cob.com.ar

cob.fr

cob.pl

cob.jp

cob.hu

cob.net

cob.net.pl

cob.ru

cob.go.ke

cob.mx

cob.web.id

cob.org.br

cob.tel

cob.hk

cob.com.au

cob.ca

cob.ch

cob.land

cob.org.uk

cob.eng.br

cob.dk

cob.com.hk

cob.lt

cob.nu

cob.no

cob.com.tw

cob.so

cob.cz

cob.es

cob.biz

cob.com

cob.lu

cob.info

cob.nl

cob.at

cob.pt

cob.com.vn

Similar names

ocb.me

cbo.me

obc.sk

bco.co

ocb.de

boc.ac

ocb.coop.br

bco.top

cbo.de

obc.dk

cbo.pt

cbo.by

ocb.com.pt

boc.eu

obc.ch

boc.tv

cbo.co.za

ocb.org.br

ocb.com.de

cbo.re

ocb.tel

boc.se

bco.com

boc.in

bco.ltd

boc.ventures

cbo.fr

ocb.be

ocb.co.at

ocb.pt

obc.com.vn

boc.co

bco.sk

bco.ru

cbo.esp.br

bco.at

obc.be

ocb.com

obc.co.in

cbo.org.ua

cbo.io

cbo.berlin

cbo.com.et

obc.email

bco.us

boc.nz

boc.church

bco.com.bo

obc.it

boc.kz

cbo.email

ocb.radio

boc.fi

obc.com.hk

boc.ru

obc.jp

obc.in

cbo.nl

obc.center

cbo.dk

obc.us

boc.dk

cbo.com.tr

boc.web.id

boc.info

boc.bh

cbo.ch

obc.church

bco.co.za

obc.com.mx

boc.photo

bco.de

ocb.bank

boc.su

bco.gov.bz

cbo.biz

obc.io

ocb.lv

bco.in

boc.com

cbo.group

obc.org

obc.kr

ocb.cl

bco.co.kr

boc.group

obc.eu

boc.jp

bco.amsterdam

cbo.com.au

obc.tel

ocb.at

ocb.ro

boc.co.zw

ocb.eu

cbo.cc

boc.de

obc.cl

cbo.hu

cbo.kz

bco.jp

obc.org.nz

boc.co.at

obc.es

obc.net

cbo.bid

boc.al

DNS History

22 records (3 active, 19 former)

○NScys.fvds.ru2016-12-21 → 2017-07-17 · 5 obs

○ 2016-07-23 10:19:12
● 2016-12-21 07:14:02
● 2017-07-17 13:54:54
○ 2017-08-31 17:04:42
○ 2026-06-27 13:47:34

○NSns1.expired.reg.ru2017-08-31 → 2017-08-31 · 4 obs

○ 2017-07-17 13:54:54
● 2017-08-31 17:04:42
○ 2020-10-12 14:41:20
○ 2026-06-27 13:47:34

○NSns1.firstvds.ru2016-12-21 → 2017-07-17 · 5 obs

○ 2016-07-23 10:19:12
● 2016-12-21 07:14:02
● 2017-07-17 13:54:54
○ 2017-08-31 17:04:42
○ 2026-06-27 13:47:34

○NSns1.hoster.kz2021-06-14 → 2021-10-05 · 5 obs

○ 2020-10-12 14:41:20
● 2021-06-14 05:14:36
● 2021-10-05 12:07:26
○ 2026-02-15 05:59:42
○ 2026-06-27 13:47:34

○NSns1.reg.ru2015-08-27 → 2020-10-12 · 7 obs

● 2015-08-27 22:03:04
● 2016-04-28 01:31:22
○ 2016-07-23 10:19:12
○ 2017-08-31 17:04:42
● 2020-10-12 14:41:20
○ 2021-06-14 05:14:36
○ 2026-06-27 13:47:34

●NSns1.rf.ru2026-02-15 → 2026-06-27 · 3 obs

○ 2021-10-05 12:07:26
● 2026-02-15 05:59:42
● 2026-06-27 13:47:34

○NSns2.expired.reg.ru2017-08-31 → 2017-08-31 · 4 obs

○ 2017-07-17 13:54:54
● 2017-08-31 17:04:42
○ 2020-10-12 14:41:20
○ 2026-06-27 13:47:34

○NSns2.firstvds.ru2016-12-21 → 2017-07-17 · 5 obs

○ 2016-07-23 10:19:12
● 2016-12-21 07:14:02
● 2017-07-17 13:54:54
○ 2017-08-31 17:04:42
○ 2026-06-27 13:47:34

○NSns2.hoster.kz2021-06-14 → 2021-10-05 · 5 obs

○ 2020-10-12 14:41:20
● 2021-06-14 05:14:36
● 2021-10-05 12:07:26
○ 2026-02-15 05:59:42
○ 2026-06-27 13:47:34

○NSns2.reg.ru2015-08-27 → 2020-10-12 · 7 obs

● 2015-08-27 22:03:04
● 2016-04-28 01:31:22
○ 2016-07-23 10:19:12
○ 2017-08-31 17:04:42
● 2020-10-12 14:41:20
○ 2021-06-14 05:14:36
○ 2026-06-27 13:47:34

●NSns2.rf.ru2026-02-15 → 2026-06-27 · 3 obs

○ 2021-10-05 12:07:26
● 2026-02-15 05:59:42
● 2026-06-27 13:47:34

○NSns3.hoster.kz2021-06-14 → 2021-10-05 · 5 obs

○ 2020-10-12 14:41:20
● 2021-06-14 05:14:36
● 2021-10-05 12:07:26
○ 2026-02-15 05:59:42
○ 2026-06-27 13:47:34

○MXmail.cob.su2016-12-21 → 2026-02-15 · 8 obs

● 2016-12-21 07:14:02
● 2017-07-17 13:54:54
○ 2017-08-31 17:04:42
○ 2020-10-12 14:41:20
● 2021-06-14 05:14:36
● 2026-02-15 05:59:42
○ 2026-02-28 12:11:50
○ 2026-06-27 13:47:34

○A185.98.5.2312021-06-14 → 2021-10-05 · 5 obs

○ 2020-10-12 14:41:20
● 2021-06-14 05:14:36
● 2021-10-05 12:07:26
○ 2026-02-15 05:59:42
○ 2026-06-27 13:47:34

○A194.58.112.1662015-11-24 → 2015-11-24 · 4 obs

○ 2015-10-27 12:25:52
● 2015-11-24 13:00:46
○ 2016-03-04 15:56:30
○ 2026-06-27 13:47:34

○A194.58.112.1672015-08-27 → 2016-04-28 · 7 obs

● 2015-08-27 22:03:04
● 2015-10-27 12:25:52
○ 2015-11-24 13:00:46
○ 2016-03-04 15:56:30
● 2016-04-28 01:31:22
○ 2016-07-23 10:19:12
○ 2026-06-27 13:47:34

○A194.58.56.1392017-08-31 → 2017-08-31 · 4 obs

○ 2017-07-17 13:54:54
● 2017-08-31 17:04:42
○ 2020-10-12 14:41:20
○ 2026-06-27 13:47:34

○A31.31.204.612016-03-04 → 2016-03-04 · 4 obs

○ 2015-11-24 13:00:46
● 2016-03-04 15:56:30
○ 2016-04-28 01:31:22
○ 2026-06-27 13:47:34

○A31.31.205.1632020-10-12 → 2020-10-12 · 4 obs

○ 2017-08-31 17:04:42
● 2020-10-12 14:41:20
○ 2021-06-14 05:14:36
○ 2026-06-27 13:47:34

○A5.188.131.102026-02-15 → 2026-04-12 · 4 obs

○ 2021-10-05 12:07:26
● 2026-02-15 05:59:42
● 2026-04-12 20:26:30
○ 2026-06-27 13:47:34

○A82.146.33.182016-12-21 → 2017-07-17 · 5 obs

○ 2016-07-23 10:19:12
● 2016-12-21 07:14:02
● 2017-07-17 13:54:54
○ 2017-08-31 17:04:42
○ 2026-06-27 13:47:34

●A82.97.243.1072026-06-27 → 2026-06-27 · 2 obs

○ 2026-04-12 20:26:30
● 2026-06-27 13:47:34

🔍 DNS Trace

📋 Delegation Chain

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

✅ Authoritative Response

Server:80.249.147.221

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cob.su (unsigned zone)

⏱️ Timing

Total: 1190ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`82.97.243.107`
NS	2	`ns2.rf.ru, ns1.rf.ru`
TXT	1	`rfru=1RHu5HFTnsoiz9fXiL7wNgrP9O0rkHVjD7g`
SOA	1	`ns1.rf.ru hostmaster.cob.su`

Analysis

Hierarchy

mail.cob.su is a subdomain of cob.su.

IP Addresses

cob.su resolves to one IP address: 82.97.243.107.

ptnn.ru, unidis.ru, delovyelinii.ru and two other host names share IP numbers with cob.su.

Name Servers

cob.su has two authoritative name servers — ns1.rf.ru and ns2.rf.ru.

cob.su uses the same name servers as several other domains — among them allmobil.ru, xn--e1aa0adddbo.xn--p1ai, izq.ru and two more.

The name servers of cob.su overlap at least partially with those of other domains — among them youdoo.ru, sta.su, regtime.ru and two more.

The name servers ns1.domeny-rf.ru, ns2.domeny-rf.ru and a.misconfigured.dns.server.invalid are commonly seen alongside these name servers.

ns1.rf.ru and ns2.rf.ru each point to one IP address — 80.249.147.221.

The host names ns1.rf.ru and ns2.rf.ru both resolve to 80.249.147.221 IP addresses.