ref.kr - dns.ninja

ref.kr

DNSSEC⚠️ Not signed
A141.164.51.104🇰🇷 AS-VULTR141.164.32.0/19 The Constant Company, LLC 319 CLEMATIS ST Suite 900
PTRrs5-kor.serverhostgroup.com
NSns1.serverhostgroup.com ⭐
A104.236.38.47🇺🇸 DIGITALOCEAN104.236.0.0/18 DigitalOcean
PTRns1.serverhostgroup.com
NSns2.serverhostgroup.com
A46.101.214.99🇩🇪 DIGITALOCEAN46.101.128.0/17 DigitalOcean
PTRns2.serverhostgroup.com
NSns3.serverhostgroup.com
A141.164.45.163🇰🇷 AS-VULTR141.164.32.0/19 The Constant Company, LLC 319 CLEMATIS ST Suite 900
PTRns3.serverhostgroup.com
MXref.kr ⭐
A141.164.51.104🇰🇷 AS-VULTR141.164.32.0/19 The Constant Company, LLC 319 CLEMATIS ST Suite 900
PTRrs5-kor.serverhostgroup.com
TXTv=spf1 ip4:141.164.51.104 include:relay.mailchannels.net +a +mx +ip4:158.247....
SOAns1.serverhostgroup.comroot@rs5-kor.serverhostgroup.com 2026-06-07 #1

kr

DNSSEC🔒 Signed (DS record present)
NSg.dns.kr ⭐
NSb.dns.kr
NSc.dns.kr
NSd.dns.kr
NSe.dns.kr
NSf.dns.kr
SOAg.dns.krdomain-manager@nic.or.kr serial=2606130652

MX for

ref.kr

Subdomains

www.ref.kr

Same first word

ref.im
ref.nhs.uk
ref.wang
ref.scot
ref.box
ref.cards
ref.info
ref.management
ref.es
ref.cn
ref.hu
ref.com
ref.co
ref.org
ref.today
ref.az
ref.re
ref.org.au
ref.pl
ref.ru
ref.com.hk
ref.or.kr
ref.plus
ref.or.jp
ref.expert
ref.in.ua
ref.training
ref.tips
ref.ng
ref.mx
ref.hk
ref.so
ref.eu
ref.house
ref.readthedocs.io
ref.ch
ref.us
ref.se
ref.ac.uk
ref.tools
ref.no
ref.to
ref.tc
ref.lv
ref.biz
ref.it
ref.li
ref.ua
ref.ms
ref.asia
ref.com.ua
ref.my
ref.world
ref.vn
ref.me
ref.pt
ref.ca
ref.net
ref.kr
ref.center
ref.lt
ref.org.uk
ref.am
ref.sh
ref.direct
ref.at
ref.dk
ref.de
ref.is
ref.moe
ref.ee
ref.com.tw
ref.gv.at
ref.ge
ref.fm
ref.finance
ref.gr
ref.agency
ref.ly
ref.sg
ref.by
ref.com.br

Similar names

fre.at
rfe.ro
rfe.de
fre.org.uk
fre.sk
efr.com.tr
efr.net
fer.gov.pl
erf.org.au
fer.lt
fer.gov.rw
fer.es
efr.co
fer.eu
fre.be
fer.al
fre.ag
fer.biz
fer.de
fre.pl
fer.pl
rfe.com.ar
fre.net
rfe.blob.core.windows.net
fre.nl
efr.com.mx
rfe.by
fer.com.ua
fre.de
fre.gr
fer.mx
rfe.org.cn
fre.lu
rfe.com
rfe.at
fer.marketing
fre.com.br
rfe.co.nz
fre.ch
fer.tel
efr.ru
fer.ai
fre.ro
erf.net
fer.ru
fer.org.mx
fer.si
fer.name
erf.be
fer.org.br
rfe.hu
fre.jp
fer.hr
rfe.mobi
fre.es
efr.app
fer.co
erf.org.uk
efr.com
fre.dk
fer.hu
fer.or.kr
efr.io
fer.ca
fer.dk
fer.com.br
fer.uz
fre.agency
rfe.cc
fer.se
fer.network
rfe.net
efr.es
rfe.eu
rfe.ca
fer.com
fer.co.uk
erf.in

DNS History

8 records (5 active, 3 former)

20162017201820192020202120222023202420252026NSns1.serverhostgroup.comns2.serverhostgroup.comns3.serverhostgroup.comns4.blueweb.co.krns5.blueweb.co.krMXref.krA141.164.51.104211.202.2.206
●NSns1.serverhostgroup.com2026-05-01 → 2026-06-13 · 3 obs
○ 2017-07-28 11:00:22
● 2026-05-01 09:03:54
● 2026-06-13 07:09:28
●NSns2.serverhostgroup.com2026-05-01 → 2026-06-13 · 3 obs
○ 2017-07-28 11:00:22
● 2026-05-01 09:03:54
● 2026-06-13 07:09:28
●NSns3.serverhostgroup.com2026-05-01 → 2026-06-13 · 3 obs
○ 2017-07-28 11:00:22
● 2026-05-01 09:03:54
● 2026-06-13 07:09:28
○NSns4.blueweb.co.kr2015-08-13 → 2017-07-28 · 4 obs
● 2015-08-13 19:00:16
● 2017-07-28 11:00:22
○ 2026-05-01 09:03:54
○ 2026-06-13 07:09:28
○NSns5.blueweb.co.kr2015-08-13 → 2017-07-28 · 4 obs
● 2015-08-13 19:00:16
● 2017-07-28 11:00:22
○ 2026-05-01 09:03:54
○ 2026-06-13 07:09:28
●MXref.kr2026-05-01 → 2026-06-13 · 2 obs
● 2026-05-01 09:03:54
● 2026-06-13 07:09:28
●A141.164.51.1042026-05-01 → 2026-06-13 · 3 obs
○ 2017-07-28 11:00:22
● 2026-05-01 09:03:54
● 2026-06-13 07:09:28
○A211.202.2.2062015-08-13 → 2017-07-28 · 4 obs
● 2015-08-13 19:00:16
● 2017-07-28 11:00:22
○ 2026-05-01 09:03:54
○ 2026-06-13 07:09:28

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
krf.dns.kr, b.dns.kr, d.dns.kr, c.dns.kr...-
ref.krns1.serverhostgroup.com, ns2.serverhostgroup.com, ns3.serverhostgroup.com-

✅ Authoritative Response

Server:46.101.214.99

NS records: ns1.serverhostgroup.com, ns2.serverhostgroup.com, ns3.serverhostgroup.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ref.kr (unsigned zone)

⏱️ Timing

Total: 1558ms | Queries: -

📄 Records

TypeCountSample Data
A1141.164.51.104
NS3ns2.serverhostgroup.com, ns1.serverhostgroup.com...
MX1ref.kr (pri: 0)
TXT1v=spf1 ip4:141.164.51.104 include:relay.
SOA1ns1.serverhostgroup.com root.rs5-kor.ser

Analysis

Hierarchy

The domain www.ref.kr falls under the parent ref.kr.

Mail Server Role

ref.kr is listed as a mail server for itself.

IP Addresses

ref.kr resolves to one IP address: 141.164.51.104.

nicenz.com, namuec.org, quickinfoguide.com and two other host names share IP numbers with ref.kr.

Name Servers

The authoritative name servers for ref.kr are ns1.serverhostgroup.com, ns2.serverhostgroup.com and ns3.serverhostgroup.com — three in total.

At least some of ref.kr's name servers are shared with other domains, for example shownightstudio.com, mannequin-manufacture.com, homesadvisor.ca and two more.

It is common for these name servers to be used in conjunction with the name servers ns1.ip-40-160-16.us, ns2.ip-40-160-16.us and cpanel-ns1.cloudns.dk.

The hostnames ns1.serverhostgroup.com, ns2.serverhostgroup.com and ns3.serverhostgroup.com each resolve to a single IP: ns1.serverhostgroup.com → 104.236.38.47, ns2.serverhostgroup.com → 46.101.214.99, ns3.serverhostgroup.com → 141.164.45.163.

Mail Servers

Mail for ref.kr is handled by one mail server — ref.kr.

ref.kr directs to just one IP number, 141.164.51.104.