yd21.go.kr - robtex.com

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

yd21.go.kr

DNSSEC⚠️ Not signed
A27.101.145.8🇰🇷 NCIA-AS-KR27.101.145.0/24 as-name NCIA-AS-KR
NSns.echungbuk.net ⭐
A210.104.148.18🇰🇷 NCIA-AS-KR210.104.148.0/24 Proxy-Registered Route Object by LG Dacom(AS3786)
NSns.klid.or.kr ⚠️ Not in zone NS records
A152.99.78.136🇰🇷 NCIA-AS-KR152.99.78.128/27
NSns.yd21.go.kr ⚠️ Not in zone NS records
A27.101.145.103🇰🇷 NCIA-AS-KR27.101.145.0/24 as-name NCIA-AS-KR
MXyd21.go.kr ⭐
A27.101.145.8🇰🇷 NCIA-AS-KR27.101.145.0/24 as-name NCIA-AS-KR
MXsmtp.google.com(1)
A2607:f8b0:4004:c17::1a🇺🇸 Google2607:f8b0:4004::/48
PTRbl-in-f26.1e100.net
A2607:f8b0:4004:c1b::1b🇺🇸 Google2607:f8b0:4004::/48
PTRwv-in-f27.1e100.net
A2607:f8b0:4004:c2d::1b🇺🇸 Google2607:f8b0:4004::/48
PTRry-in-f27.1e100.net
A2607:f8b0:4004:c2f::1a🇺🇸 Google2607:f8b0:4004::/48
PTRrz-in-f26.1e100.net
A172.253.62.26🇺🇸 Google172.253.62.0/24
PTRbc-in-f26.1e100.net
A172.253.115.26🇺🇸 Google172.253.115.0/24
PTRbg-in-f26.1e100.net
A172.253.115.27🇺🇸 Google172.253.115.0/24
PTRbg-in-f27.1e100.net
A172.253.122.26🇺🇸 Google172.253.122.0/24
PTRbh-in-f26.1e100.net
A172.253.122.27🇺🇸 Google172.253.122.0/24
PTRbh-in-f27.1e100.net
TXTgoogle-site-verification=GJZwBCuSXk8WxfTFIvoJv3YeuzKu400--KF6ysQEN3k
SOAns.echungbuk.netdnsadmin@yd21.go.kr 2026-06-16 #11

go.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=2610160502
WOT: UNKNOWN (61/100)
📈 Tranco rank: #665,497
rank #450 globally
rank #2 in the tld

go.kr

The domaingo.kris the official second‑level domain for South Korean government agencies, managed by the Korean government.

Key facts

  • Owner / operator: South Korean government (administered by KISA)
  • TLD:.kr— ccTLD for South Korea
  • Primary purpose: Official government websites and services
  • Status: active

Notable subdomains or services

  • Pattern*.go.kr– used by individual ministries, agencies, and public institutions (e.g.,www.moj.go.kr).
WOT: SAFE (71/100)

MX for

yd21.go.kr

Subdomains

ice.yd21.go.kr
ns.yd21.go.kr
www.yd21.go.kr

Same first word

yd21.com
yd21.vip
yd21.net
yd21.ph
yd21.go.kr

Similar names

yd12.me
21dy.cc
21dy.org.ph
12dy.cc
21dy.net
yd12.top
dy12.pages.dev
2y1d.com
12yd.com
2dy1.cn
d21y.ph
dy12.com.cn
y21d.ph
y21d.bid
dy12.fun
2dy1.com.ph
dy21.my
yd12.xyz
d12y.info
d2y1.com.ph
dy21.com
d12y.com
yd12.vip
12dy.top
dy21.fun
dy21.pages.dev
21yd.ph
12dy.shop
dy21.live
d12y.vip
dy21.ph
21yd.com
yd12.com
2d1y.com.tr
dy21.shop
d21y.com.ph
21yd.bet
21dy.org
y21d.best
y21d.fun
y21d.app
dy12.co.uk
y21d.org
1y2d.cc
12yd.de
y21d.com
y21d.bet
2d1y.com
d12y.net
d21y.net.ph
1dy2.ph
dy21.freeboxos.fr
dy12.shop
dy12.uk
12dy.com
yd12.cc
dy21.cc
d2y1.icu
y21d.vip
1d2y.com
y21d.pro
y2d1.com
dy12.com
y12d.com
y1d2.com
y21d.win
12dy.org
dy21.gg
dy12.biz
y21d.net
yd12.shop
y21d.co
dy21.com.cn
d12y.co
21dy.shop

Previous names

wonju.go.kr
wonjumk.go.kr
work.go.kr
work24.go.kr
worknet.go.kr
workplus.go.kr
wsdh.go.kr
yacl.go.kr
yangcheon.go.kr
yanggu.go.kr
yangju.go.kr
yangsan.go.kr
yangyang.go.kr
yap.go.kr
yc.go.kr
ycc.go.kr
yclib.go.kr
ycnc.go.kr
ycsesc.go.kr
yd.go.kr

Next names

yde.go.kr
ydp.go.kr
ydpc.go.kr
yecheon-ed.go.kr
yecheon-lib.go.kr
yecheon.go.kr
yeep.go.kr
yeoju.go.kr
yeojucouncil.go.kr
yeoncheon.go.kr
yeongam.go.kr
yeongdo.go.kr
yeongdong.go.kr
yeonggwang.go.kr
yeongjong.go.kr
yeongju.go.kr
yeongjulll.go.kr
yeongsanriver.go.kr
yeonje.go.kr
yeonsu.go.kr

DNS History

8 records (6 active, 2 former)

20162017201820192020202120222023202420252026NSns.echungbuk.netns.klid.or.krns.yd21.go.krns2.echungbuk.netMXsmtp.google.comyd21.go.krA27.101.145.8152.99.78.136
●NSns.echungbuk.net2015-07-15 → 2026-10-16 · 5 obs
● 2015-07-15 04:57:54
● 2016-12-29 06:21:20
○ 2026-09-12 13:50:34
● 2026-09-14 19:17:50
● 2026-10-16 06:36:44
●NSns.klid.or.kr2026-03-05 → 2026-10-16 · 3 obs
○ 2016-12-29 06:21:20
● 2026-03-05 11:37:42
● 2026-10-16 06:36:44
●NSns.yd21.go.kr2026-06-22 → 2026-10-16 · 3 obs
○ 2026-03-05 11:37:42
● 2026-06-22 03:33:50
● 2026-10-16 06:36:44
○NSns2.echungbuk.net2015-07-15 → 2016-12-29 · 4 obs
● 2015-07-15 04:57:54
● 2016-12-29 06:21:20
○ 2026-03-05 11:37:42
○ 2026-10-16 06:36:44
●MXsmtp.google.com2026-03-05 → 2026-10-16 · 5 obs
○ 2016-12-29 06:21:20
● 2026-03-05 11:37:42
○ 2026-09-12 13:50:34
● 2026-09-14 19:17:50
● 2026-10-16 06:36:44
●MXyd21.go.kr2015-07-15 → 2026-10-16 · 5 obs
● 2015-07-15 04:57:54
● 2016-12-29 06:21:20
○ 2026-09-12 13:50:34
● 2026-09-14 19:17:50
● 2026-10-16 06:36:44
○A152.99.78.1362026-03-05 → 2026-06-04 · 5 obs
○ 2016-12-29 06:21:20
● 2026-03-05 11:37:42
● 2026-06-04 16:28:42
○ 2026-06-22 03:33:50
○ 2026-10-16 06:36:44
●A27.101.145.82015-07-15 → 2026-10-16 · 5 obs
● 2015-07-15 04:57:54
● 2016-12-29 06:21:20
○ 2026-09-12 13:50:34
● 2026-09-14 19:17:50
● 2026-10-16 06:36:44

🔍 DNS Trace

Analysis

Hierarchy

ice.yd21.go.kr, ns.yd21.go.kr and www.yd21.go.kr each fall under the parent domain yd21.go.kr.

Mail Server Role

yd21.go.kr is listed as a mail server for itself.

As mail servers, smtp.google.com and yd21.go.kr are regularly found together.

IP Addresses

yd21.go.kr resolves to one IP address: 27.101.145.8.

www.yd21.go.kr and yd21.net, along with other host names, share IP addresses with yd21.go.kr.

Name Servers

The authoritative name servers for yd21.go.kr are ns.echungbuk.net, ns.yd21.go.kr and ns.klid.or.kr — three in total.

yd21.go.kr partially shares its NS delegation with several other domains, including pohang.go.kr, donggu.go.kr, bsseogu.go.kr and two others.

In DNS configurations, these name servers often share authority with ns2.echungbuk.net, ns.incheon.go.kr, ns1.chungnam.net and 7 other name servers.

The hostnames ns.echungbuk.net, ns.yd21.go.kr and ns.klid.or.kr each resolve to a single IP: ns.echungbuk.net → 210.104.148.18, ns.yd21.go.kr → 27.101.145.103, ns.klid.or.kr → 152.99.78.136.

Mail Servers

The domain yd21.go.kr has two mail servers: yd21.go.kr and smtp.google.com.

yd21.go.kr has at least partial mail server overlap with other domains such as dove-technology.com, sml-recruiting.de, tapitcr.com and two more.

Hostnames that resolve to 9 IP addresses:

Hostname smtp.google.com directs to 172.253.62.26, 172.253.115.26 and 172.253.115.27 along with 6 other IP addresses.

Hosts with just one IP address:

yd21.go.kr has the IP address 27.101.145.8.