sff.or.kr - robtex.com

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

sff.or.kr

DNSSEC⚠️ Not signed
A183.111.199.189🇰🇷 KT-NET183.104.0.0/13 KORNET KOREA TELECOM
PTRonepickent.co.kr
NSsff.or.kr ⭐
A183.111.199.189🇰🇷 KT-NET183.104.0.0/13 KORNET KOREA TELECOM
PTRonepickent.co.kr
NSns1.cafe24.co.kr
A112.175.246.232🇰🇷 KT-NET112.168.0.0/13
PTRgjit.kr
PTRsnoweb.kr
PTRsinc2030.co.kr
A112.175.246.233🇰🇷 KT-NET112.168.0.0/13
A175.125.93.136🇰🇷 SKB-NET175.120.0.0/13 SKB summary
A175.125.93.137🇰🇷 SKB-NET175.120.0.0/13 SKB summary
NSns1.cafe24.com
A112.175.246.230🇰🇷 KT-NET112.168.0.0/13
A112.175.246.231🇰🇷 KT-NET112.168.0.0/13
A116.126.143.242🇰🇷 SKB-NET116.126.0.0/16 SK Broadband
A175.125.93.134🇰🇷 SKB-NET175.120.0.0/13 SKB summary
A175.125.93.135🇰🇷 SKB-NET175.120.0.0/13 SKB summary
NSns2.cafe24.co.kr
A112.175.247.232🇰🇷 KT-NET112.168.0.0/13
PTRsnoweb.kr
PTRsarchi.co.kr
A112.175.247.233🇰🇷 KT-NET112.168.0.0/13
A175.125.93.146🇰🇷 SKB-NET175.120.0.0/13 SKB summary
A175.125.93.147🇰🇷 SKB-NET175.120.0.0/13 SKB summary
NSns2.cafe24.com
A1.226.85.4🇰🇷 SKB-NET1.224.0.0/13 auto-generated route object for 1.224.0.0/13
A1.234.0.4🇰🇷 SKB-NET1.232.0.0/13 auto-generated route object for 1.232.0.0/13
A112.175.11.4🇰🇷 KT-NET112.168.0.0/13
A112.175.12.4🇰🇷 KT-NET112.168.0.0/13
MXmailapp.hiworks.co.kr ⭐
A45.120.71.59🇰🇷 DACOM-NET45.120.71.0/24
PTRmailapp.hiworks.co.kr
A121.254.168.55🇰🇷 DACOM-NET121.254.128.0/17 contact noc@bora.net if necessary
PTRmailapp.hiworks.co.kr
A211.47.76.59🇰🇷 DACOM-NET211.47.76.0/24 proxy for HANARO TELECOM route
PTRmailapp.hiworks.co.kr
TXTv=spf1 include:_spf.hiworks.co.kr ~all
SOAsff.or.krpostmaster@sff.or.kr serial=20230707

or.kr

DNSSEC⚠️ Not signed
NSg.dns.kr ⭐ ⚠️ Not in parent delegation
NSb.dns.kr ⚠️ Not in parent delegation
NSc.dns.kr ⚠️ Not in parent delegation
NSd.dns.kr ⚠️ Not in parent delegation
NSe.dns.kr ⚠️ Not in parent delegation
NSf.dns.kr ⚠️ Not in parent delegation
SOAg.dns.krdomain-manager@nic.or.kr serial=2608170501
rank #338 globally
rank #1 in the tld

or.kr

or.kr is a second‑level domain under South Korea’s.krcountry code top‑level domain, used for registering non‑profit and non‑governmental organizations.

Key facts

  • Owner / operator: KISA (Korea Internet & Security Agency)
  • TLD:.kr— ccTLD for South Korea
  • Primary purpose: registry for non‑profit organizations (NGOs, charities, etc.)
  • Status: active (used as a second‑level namespace; the apex domain itself does not host a website)
WOT: UNKNOWN (41/100)

NS for

sff.or.kr

Subdomains

null.sff.or.kr
mail.sff.or.kr

Same first word

sff.it
sff.de
sff.nl
sff.tv
sff.info
sff.org.ru
sff.nu
sff.cc
sff.cn
sff.ie
sff.network
sff.co.jp
sff.co.uk
sff.org
sff.dk
sff.fi
sff.org.au
sff.ba
sff.or.kr
sff.sa
sff.cz
sff.be
sff.gov.sa
sff.cl
sff.eu
sff.a.se
sff.us
sff.name
sff.com
sff.pt
sff.vc
sff.io
sff.lu
sff.media
sff.me
sff.at
sff.com.au
sff.is
sff.mx
sff.in.ua
sff.no
sff.net
sff.jp
sff.or.jp
sff.ch
sff.gr
sff.se
sff.in
sff.hu
sff.ru

Similar names

fsf.ro
ffs.com.br
ffs.edu.vn
ffs.com.my
ffs.fr
fsf.jp
ffs.su
fsf.org
fsf.st
fsf.info
fsf.zone
ffs.ie
ffs.at
ffs.cl
fsf.in
ffs.insure
ffs.lt
fsf.gay
fsf.com.mx
fsf.no
fsf.com.fj
fsf.co.jp
fsf.net
ffs.dz
ffs.es
ffs.ng
ffs.rs
ffs.life
fsf.dk
fsf.cc
fsf.se
ffs.builders
ffs.fo
fsf.de
fsf.org.uk
ffs.eu
ffs.it
fsf.edu.br
ffs.co.za
ffs.in
fsf.fo
fsf.be
ffs.dk
ffs.de
ffs.tel
fsf.com.sg
ffs.com
ffs.sk
ffs.kz
ffs.co
ffs.tv
fsf.gov.sa
ffs.nu
ffs.photos
fsf.rs
fsf.si
fsf.deals
ffs.pl
ffs.com.au
ffs.org.sa
ffs.agency
ffs.ly
fsf.cn
fsf.us
ffs.ch
fsf.hu
fsf.ru
ffs.org
ffs.ae
fsf.cz
ffs.wtf
ffs.no
fsf.su
ffs.cn
fsf.fr
fsf.it
ffs.is
fsf.com.vn
ffs.com.pl
fsf.ch
fsf.pl
ffs.fi
ffs.com.gr
ffs.nl
fsf.org.cn
fsf.ca
fsf.co.uk
ffs.info
fsf.at
ffs.bz
ffs.sumy.ua
ffs.mobi
ffs.or.at
ffs.community
ffs.me
fsf.nl
ffs.ir
fsf.biz
ffs.hu
ffs.ca
fsf.org.in
ffs.ru
ffs.be
ffs.fail
ffs.cc
ffs.gg
ffs.org.uk
ffs.biz
ffs.co.jp
ffs.net.nz
fsf.cl
ffs.co.uk
ffs.casino
ffs.net
ffs.se
fsf.asia

DNS History

12 records (7 active, 5 former)

200920112013201520172019202120232025NSns1.cafe24.co.krns1.cafe24.comns2.cafe24.co.krns2.cafe24.comsff.or.krns1.domaintank.co.krns2.domaintank.co.krMXmailapp.hiworks.co.krmail.sff.or.krA183.111.199.189211.233.45.250211.233.45.253
●NSns1.cafe24.co.kr2026-02-16 → 2026-08-17 · 3 obs
○ 2018-08-22 23:21:28
● 2026-02-16 07:24:32
● 2026-08-17 00:01:12
●NSns1.cafe24.com2026-02-16 → 2026-08-17 · 3 obs
○ 2018-08-22 23:21:28
● 2026-02-16 07:24:32
● 2026-08-17 00:01:12
○NSns1.domaintank.co.kr2008-07-23 → 2018-08-22 · 11 obs
● 2008-07-23 23:36:38
● 2015-07-23 18:40:42
○ 2015-09-08 13:29:08
● 2015-11-05 01:27:16
● 2016-01-17 07:39:32
○ 2016-04-15 14:00:16
○ 2016-08-22 09:17:28
● 2016-12-01 15:01:22
● 2018-08-22 23:21:28
○ 2026-02-16 07:24:32
○ 2026-08-17 00:01:12
●NSns2.cafe24.co.kr2026-02-16 → 2026-08-17 · 3 obs
○ 2018-08-22 23:21:28
● 2026-02-16 07:24:32
● 2026-08-17 00:01:12
●NSns2.cafe24.com2026-02-16 → 2026-08-17 · 3 obs
○ 2018-08-22 23:21:28
● 2026-02-16 07:24:32
● 2026-08-17 00:01:12
○NSns2.domaintank.co.kr2015-07-23 → 2016-08-22 · 9 obs
○ 2008-07-23 23:36:38
● 2015-07-23 18:40:42
● 2015-09-08 13:29:08
○ 2015-11-05 01:27:16
○ 2016-01-17 07:39:32
● 2016-04-15 14:00:16
● 2016-08-22 09:17:28
○ 2016-12-01 15:01:22
○ 2026-08-17 00:01:12
●NSsff.or.kr2026-02-16 → 2026-08-17 · 3 obs
○ 2018-08-22 23:21:28
● 2026-02-16 07:24:32
● 2026-08-17 00:01:12
○MXmail.sff.or.kr2016-08-22 → 2018-08-22 · 4 obs
● 2016-08-22 09:17:28
● 2018-08-22 23:21:28
○ 2026-02-16 07:24:32
○ 2026-08-17 00:01:12
●MXmailapp.hiworks.co.kr2026-02-16 → 2026-08-17 · 3 obs
○ 2018-08-22 23:21:28
● 2026-02-16 07:24:32
● 2026-08-17 00:01:12
●A183.111.199.1892026-02-16 → 2026-08-17 · 3 obs
○ 2018-08-22 23:21:28
● 2026-02-16 07:24:32
● 2026-08-17 00:01:12
○A211.233.45.2502015-07-23 → 2018-08-22 · 5 obs
○ 2008-07-23 23:36:38
● 2015-07-23 18:40:42
● 2018-08-22 23:21:28
○ 2026-02-16 07:24:32
○ 2026-08-17 00:01:12
○A211.233.45.2532008-07-23 → 2008-07-23 · 3 obs
● 2008-07-23 23:36:38
○ 2015-07-23 18:40:42
○ 2026-08-17 00:01:12

🔍 DNS Trace

Analysis

Hierarchy

null.sff.or.kr and mail.sff.or.kr are both subdomains of sff.or.kr.

Name Server Role

sff.or.kr acts as a name server for sff.or.kr, meaning it is self-referentially delegated.

sff.or.kr is commonly paired with ns1.cafe24.com, ns2.cafe24.com and ns1.cafe24.co.kr to act as name servers.

IP Addresses

sff.or.kr resolves to one IP address: 183.111.199.189.

lifelogdata.com, actionmedia.co.kr, ksvr.or.kr and two other host names share IP numbers with sff.or.kr.

Name Servers

Five name servers are authoritative for sff.or.kr, which are sff.or.kr, ns1.cafe24.com, ns2.cafe24.com and two others.

There is at least partial name server overlap between sff.or.kr and other domains — xn--9d0bl1sg8g40am5wx7ak0k.kr, sifff.kr, dailyna.kr and two more among them.

These name servers regularly appear alongside ns2.cafe24.co.kr, ns.cafe24.com, ns0.cafe24.com and 6 other name servers in NS record sets.

Hostnames pointing to five IP numbers:

ns1.cafe24.com resolves to four IP addresses: 112.175.246.230, 112.175.246.231, 116.126.143.242 and two others.

Hosts that point to four IP numbers:

ns2.cafe24.com resolves to four IP addresses — 1.226.85.4, 1.234.0.4, 112.175.11.4 and 112.175.12.4.

ns1.cafe24.co.kr resolves to four IP addresses — 112.175.246.232, 112.175.246.233, 175.125.93.136 and 175.125.93.137.

ns2.cafe24.co.kr resolves to four IP addresses — 112.175.247.232, 112.175.247.233, 175.125.93.146 and 175.125.93.147.

Hosts with just one IP address:

The hostname sff.or.kr resolves to 183.111.199.189.

Mail Servers

Mail for sff.or.kr is handled by a single mail server, mailapp.hiworks.co.kr.

sff.or.kr uses an identical mail server configuration to several other domains — among them justfocus.co.kr, todot.co.kr, dsng.co.kr and two more.

sff.or.kr uses mail servers that are also used by other domains, including welllight.com, casco-f.com and i-kst.com.

mailapp.hiworks.co.kr maps to three IP addresses — 45.120.71.59, 121.254.168.55 and 211.47.76.59.