study.su - dns.ninja

`study.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@study.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=650209353

Subdomains

mail.study.su

Same first word

study.black

study.cat

study.us

study.org

study.directory

study.nl

study.dk

study.tours

study.kz

study.com.pl

study.de

study.edu.vn

study.uk.net

study.company

study.lu

study.place

study.ua

study.my

study.gov.pl

study.foundation

study.eu

study.agency

study.ie

study.com

study.mba

study.engineering

study.se

study.go.kr

study.computer

study.ru

study.loans

study.tools

study.matrix.jp

study.brussels

study.it

study.gr.jp

study.travel

study

study.mx

study.in.th

study.direct

study.zone

study.jp

study.co.jp

study.cm

study.kg

study.tw

study.run

study.co

study.biz

study.in

study.bible

study.ne.jp

study.blue

study.express

study.be

study.co.uk

study.today

study.ne.kr

study.no

study.new

study.bet

study.life

study.training

study.boats

study.lv

study.su

study.academy

study.mobi

study.group

study.ly

study.uz

study.cz

study.skin

study.center

study.cash

study.cheap

study.to

study.co.il

study.by

study.com.mx

study.gr

study.at

study.mn

study.kiev.ua

study.support

study.fi

study.credit

study.church

study.land

study.world

study.es

study.ir

study.edu.ge

study.net

study.team

study.cafe

study.vic.gov.au

study.com.pk

study.sk

study.monash

study.ca

study.ac.id

study.help

study.tj

study.technology

study.beauty

study.tube

study.guide

study.id

study.ltd

Similar names

dusty.codes

dutys.com

duyts.amsterdam

dusty.se

dusty.cz

dusty.readthedocs.io

dusty.gr

dusty.no

dusty.page

stduy.com

dusty.wtf

dusty.tv

dusty.ru

dyust.io

dusty.nl

dusty.dk

dusty.work

ystud.com

dusty.com

tydus.com

dusty.ee

dusty.us

dstuy.com

dusty.co.uk

dusty.it

DNS History

8 records (3 active, 5 former)

○NSns.ropnet.ru2015-07-14 → 2016-12-03 · 4 obs

● 2015-07-14 17:59:56
● 2016-12-03 05:15:02
○ 2026-03-26 19:06:10
○ 2026-06-04 14:19:04

●NSns1.rf.ru2026-03-26 → 2026-06-04 · 3 obs

○ 2016-12-03 05:15:02
● 2026-03-26 19:06:10
● 2026-06-04 14:19:04

○NSns1.ropnet.ru2015-07-14 → 2016-12-03 · 4 obs

● 2015-07-14 17:59:56
● 2016-12-03 05:15:02
○ 2026-03-26 19:06:10
○ 2026-06-04 14:19:04

●NSns2.rf.ru2026-03-26 → 2026-06-04 · 3 obs

○ 2016-12-03 05:15:02
● 2026-03-26 19:06:10
● 2026-06-04 14:19:04

○MXmail.study.su2015-07-14 → 2016-12-03 · 4 obs

● 2015-07-14 17:59:56
● 2016-12-03 05:15:02
○ 2026-03-26 19:06:10
○ 2026-06-04 14:19:04

○A212.42.42.52015-07-14 → 2016-12-03 · 4 obs

● 2015-07-14 17:59:56
● 2016-12-03 05:15:02
○ 2026-03-26 19:06:10
○ 2026-06-04 14:19:04

○A5.188.131.102026-03-26 → 2026-04-09 · 5 obs

○ 2016-12-03 05:15:02
● 2026-03-26 19:06:10
● 2026-04-09 02:46:30
○ 2026-04-17 20:10:10
○ 2026-06-04 14:19:04

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

○ 2026-04-09 02:46:30
● 2026-04-17 20:10:10
● 2026-06-04 14:19:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
su	b.dns.ripn.net, e.dns.ripn.net, a.dns.ripn.net, d.dns.ripn.net...	10 records
study.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 study.su (unsigned zone)

⏱️ Timing

Total: 3297ms | Queries: -

📄 Records

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

📌 Glue Records Collected

Total: 10

Out-of-bailiwick: 10 (b.dns.ripn.net, b.dns.ripn.net, e.dns.ripn.net...)

Analysis

Hierarchy

study.su is a parent domain of mail.study.su.

IP Addresses

study.su directs to one IP number, which is 82.97.243.107.

Among the host names that share IP numbers with study.su are bigfisher.ru, mail.vodamir.ru, gorod-podarkov.ru and two others.

Name Servers

The NS records for study.su delegate to ns1.rf.ru and ns2.rf.ru.

study.su has the same name server delegation as a number of other domains, such as fashion-guru.ru, ncpl.ru, inertek.ru and two more.

study.su at least partially shares name servers with other domains, for instance xn--80adolcetc2a6l.xn--p1ai, mansardas.ru and xn--80aafc0dlfp.xn--p1ai.

These name servers are frequently paired with the name servers ns2.domeny-rf.ru and ns1.domeny-rf.ru.

Each of ns1.rf.ru and ns2.rf.ru points to exactly one IP address: 80.249.147.221.

ns1.rf.ru and ns2.rf.ru each have 80.249.147.221 IP addresses.