`flsc.or.kr`

DNSSEC	⚠️ Not signed
A	2606:4700:3032::6815:37c8^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3032::ac43:aca4^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.55.200^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.172.164^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`chloe.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a55^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`chloe.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c055^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`chloe.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2055^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`chloe.ns.cloudflare.com`
		A	108.162.192.85^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`chloe.ns.cloudflare.com`
		A	172.64.32.85^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`chloe.ns.cloudflare.com`
		A	173.245.58.85^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`chloe.ns.cloudflare.com`
NS	`justin.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bbb^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`justin.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1bb^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`justin.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21bb^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`justin.ns.cloudflare.com`
		A	108.162.193.187^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`justin.ns.cloudflare.com`
		A	172.64.33.187^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`justin.ns.cloudflare.com`
		A	173.245.59.187^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`justin.ns.cloudflare.com`
MX	`mx01.mailplug.com` ⭐
		A	121.156.118.202^{🇰🇷 KT-NET121.152.0.0/13}
			PTR	`mx01.mailplug.com`
		A	121.156.118.204^{🇰🇷 KT-NET121.152.0.0/13}
			PTR	`mx01.mailplug.com`
		A	121.156.118.213^{🇰🇷 KT-NET121.152.0.0/13}
			PTR	`mx01.mailplug.com`
		A	121.156.118.220^{🇰🇷 KT-NET121.152.0.0/13}
			PTR	`mx01.mailplug.com`
		A	121.156.118.223^{🇰🇷 KT-NET121.152.0.0/13}
			PTR	`mx01.mailplug.com`
		A	121.156.118.248^{🇰🇷 KT-NET121.152.0.0/13}
			PTR	`mx01.mailplug.com`
MX	`mx02.mailplug.com`⁽²⁰⁾
		A	223.26.214.9^{🇰🇷 HYOSUNGITX-AS-KR223.26.192.0/18 PACNET (proxy-registered route object)}
		A	223.26.214.10^{🇰🇷 HYOSUNGITX-AS-KR223.26.192.0/18 PACNET (proxy-registered route object)}
TXT	`v=spf1 mx include:mailplug.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.55.200, 172.67.172.164
		IPv6 hints	2606:4700:3032::6815:37c8, 2606:4700:3032::ac43:aca4
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=107, name=cloudflare-ech.com
SOA	`chloe.ns.cloudflare.com`dns@cloudflare.com serial=2408303063

`or.kr`

	DNSSEC	⚠️ Not signed
	NS	`g.dns.kr` ⭐ ⚠️ Not in parent delegation
	NS	`b.dns.kr` ⚠️ Not in parent delegation
	NS	`c.dns.kr` ⚠️ Not in parent delegation
	NS	`d.dns.kr` ⚠️ Not in parent delegation
	NS	`e.dns.kr` ⚠️ Not in parent delegation
	NS	`f.dns.kr` ⚠️ Not in parent delegation
	SOA	`g.dns.kr`domain-manager@nic.or.kr serial=2608110527

rank #340 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)

Subdomains

www.flsc.or.kr

Same first word

flsc.jp

flsc.de

flsc.biz

flsc.org

flsc.se

flsc.xyz

flsc.dev

flsc.lu

flsc.cn

flsc.com

flsc.com.au

flsc.at

flsc.ca

flsc.or.kr

flsc.us

flsc.co.uk

flsc.net

Similar names

fslc.org

clfs.org

scfl.ca

cfls.com

slfc.co.za

cslf.com

slfc.co

fscl.org.nz

flcs.ca

lcfs.com.au

fscl.ca

cfsl.co.nz

lscf.com

sclf.co.uk

clfs.net

cfls.com.tw

sflc.in

cfls.net.cn

slfc.se

csfl.com

csfl.net

lfcs.lu

slfc.cn

lsfc.org

flcs.jp

cfsl.co.uk

flcs.cn

cfls.jp

fcls.co.uk

lcfs.co.uk

lfcs.ca

fcls.cn

fcsl.ch

clfs.cn

lcsf.net

lcfs.vn

lcsf.fi

lcfs.co

cslf.org

slfc.com

lscf.org

scfl.eu

fscl.net

sclf.com

lsfc.net

cfsl.org

scfl.co.uk

lfcs.net

fcls.fr

cfsl.mobi

slfc.net

sfcl.co.uk

sfcl.de

slcf.se

csfl.org

clfs.com.au

cfls.info

lcsf.cn.com

lfcs.ru

lfcs.us

lfsc.org

clsf.net

fcls.com

sflc.info

csfl.cn

fslc.fr

sclf.in

sfcl.co.at

cfsl.com

fslc.de

slfc.it

flcs.pk

csfl.qc.ca

lfsc.org.uk

lsfc.co.uk

fscl.com

csfl.us

scfl.lib.ca.us

clsf.org.ph

fcsl.co.uk

clfs.nl

flcs.com

scfl.org.uk

cfsl.com.hk

sclf.net

flcs.de

lscf.us

clfs.co.uk

fscl.com.cn

fcsl.ca

lscf.ca

fscl.tk

flcs.net

clsf.cn

DNS History

20 records (8 active, 12 former)

●NSchloe.ns.cloudflare.com2026-05-09 → 2026-08-11 · 3 obs

○ 2026-04-21 23:24:06
● 2026-05-09 06:49:32
● 2026-08-11 15:44:16

●NSjustin.ns.cloudflare.com2026-05-09 → 2026-08-11 · 3 obs

○ 2026-04-21 23:24:06
● 2026-05-09 06:49:32
● 2026-08-11 15:44:16

○NSns1.dothome.co.kr2026-02-19 → 2026-04-21 · 5 obs

○ 2018-11-04 13:16:04
● 2026-02-19 17:19:30
● 2026-04-21 23:24:06
○ 2026-05-09 06:49:32
○ 2026-08-11 15:44:16

○NSns1.uhost.co.kr2015-07-06 → 2018-11-04 · 4 obs

● 2015-07-06 23:44:58
● 2018-11-04 13:16:04
○ 2026-02-19 17:19:30
○ 2026-08-11 15:44:16

○NSns2.dothome.co.kr2026-02-19 → 2026-04-21 · 5 obs

○ 2018-11-04 13:16:04
● 2026-02-19 17:19:30
● 2026-04-21 23:24:06
○ 2026-05-09 06:49:32
○ 2026-08-11 15:44:16

○NSns2.uhost.co.kr2015-07-06 → 2018-11-04 · 4 obs

● 2015-07-06 23:44:58
● 2018-11-04 13:16:04
○ 2026-02-19 17:19:30
○ 2026-08-11 15:44:16

○NSns3.dothome.co.kr2026-02-19 → 2026-04-21 · 5 obs

○ 2018-11-04 13:16:04
● 2026-02-19 17:19:30
● 2026-04-21 23:24:06
○ 2026-05-09 06:49:32
○ 2026-08-11 15:44:16

○MXkr1-aspmx1.worksmobile.com2016-02-03 → 2017-03-15 · 5 obs

○ 2015-07-06 23:44:58
● 2016-02-03 17:31:48
● 2017-03-15 09:29:12
○ 2018-11-04 13:16:04
○ 2026-08-11 15:44:16

○MXkr1-aspmx2.worksmobile.com2016-02-03 → 2017-03-15 · 5 obs

○ 2015-07-06 23:44:58
● 2016-02-03 17:31:48
● 2017-03-15 09:29:12
○ 2018-11-04 13:16:04
○ 2026-08-11 15:44:16

○MXm101.mailplug.co.kr2015-07-06 → 2018-11-04 · 4 obs

● 2015-07-06 23:44:58
● 2018-11-04 13:16:04
○ 2026-02-19 17:19:30
○ 2026-08-11 15:44:16

●MXmx01.mailplug.com2018-11-04 → 2026-08-11 · 3 obs

○ 2017-03-15 09:29:12
● 2018-11-04 13:16:04
● 2026-08-11 15:44:16

●MXmx02.mailplug.com2018-11-04 → 2026-08-11 · 3 obs

○ 2017-03-15 09:29:12
● 2018-11-04 13:16:04
● 2026-08-11 15:44:16

●A104.21.55.2002026-05-09 → 2026-08-11 · 3 obs

○ 2026-04-21 23:24:06
● 2026-05-09 06:49:32
● 2026-08-11 15:44:16

○A112.175.184.142015-11-17 → 2026-04-21 · 5 obs

○ 2015-07-06 23:44:58
● 2015-11-17 00:28:02
● 2026-04-21 23:24:06
○ 2026-05-09 06:49:32
○ 2026-08-11 15:44:16

●A172.67.172.1642026-05-09 → 2026-08-11 · 3 obs

○ 2026-04-21 23:24:06
● 2026-05-09 06:49:32
● 2026-08-11 15:44:16

○A202.31.187.2042015-07-06 → 2015-07-06 · 3 obs

● 2015-07-06 23:44:58
○ 2015-11-17 00:28:02
○ 2026-08-11 15:44:16

●A2606:4700:3032::6815:37c82026-07-11 → 2026-08-11 · 3 obs

○ 2026-06-08 03:54:42
● 2026-07-11 15:07:44
● 2026-08-11 15:44:16

●A2606:4700:3032::ac43:aca42026-07-11 → 2026-08-11 · 3 obs

○ 2026-06-08 03:54:42
● 2026-07-11 15:07:44
● 2026-08-11 15:44:16

○A2606:4700:3034::ac43:aca42026-05-09 → 2026-06-08 · 5 obs

○ 2026-04-21 23:24:06
● 2026-05-09 06:49:32
● 2026-06-08 03:54:42
○ 2026-07-11 15:07:44
○ 2026-08-11 15:44:16

○A2606:4700:3036::6815:37c82026-05-09 → 2026-06-08 · 5 obs

○ 2026-04-21 23:24:06
● 2026-05-09 06:49:32
● 2026-06-08 03:54:42
○ 2026-07-11 15:07:44
○ 2026-08-11 15:44:16

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
kr	b.dns.kr, c.dns.kr, d.dns.kr, e.dns.kr...	-
flsc.or.kr	chloe.ns.cloudflare.com, justin.ns.cloudflare.com	-

✅ Authoritative Response

Server:173.245.58.85

NS records: chloe.ns.cloudflare.com, justin.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for flsc.or.kr (unsigned zone)

⏱️ Timing

Total: 2241ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.55.200, 172.67.172.164`
AAAA	2	`2606:4700:3032::6815:37c8, 2606:4700:3032::ac43:aca4`
NS	2	`chloe.ns.cloudflare.com, justin.ns.cloudflare.com`
MX	2	`mx01.mailplug.com (pri: 10), mx02.mailplug.com (pri: 20)`
TXT	1	`v=spf1 mx include:mailplug.com ~all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`chloe.ns.cloudflare.com dns.cloudflare.c`

Analysis

Hierarchy

www.flsc.or.kr is delegated beneath flsc.or.kr.

IP Addresses

flsc.or.kr directs to four IP numbers, which are 104.21.55.200, 172.67.172.164, 2606:4700:3032::6815:37c8 and 2606:4700:3032::ac43:aca4.

Additional host names — www.xpresslogis.com, cleanairtn.org, mx.importing.com and two others — share IP numbers with flsc.or.kr.

Name Servers

flsc.or.kr is served by two delegated name servers, chloe.ns.cloudflare.com and justin.ns.cloudflare.com.

flsc.or.kr shares its name server setup with other domains, including (0x616e616c)ytiks.ai, hi-cdn.net, 40eth.eu and two others.

There is at least partial name server overlap between flsc.or.kr and other domains — e-doma.lv, kcocpa.com, globalsports.ro and two more among them.

These name servers frequently co-occur with the name servers robert.ns.cloudflare.com and jarred.ns.cloudflare.com.

Host names with 6 IP numbers:

chloe.ns.cloudflare.com carries IP addresses 108.162.192.85, 172.64.32.85 and 173.245.58.85, with 3 other addresses beyond those.

justin.ns.cloudflare.com carries IP addresses 108.162.193.187, 172.64.33.187 and 173.245.59.187, with 3 other addresses beyond those.

Mail Servers

flsc.or.kr has two mail servers: mx01.mailplug.com and mx02.mailplug.com.

flsc.or.kr shares the same mail server setup as other domains, including akroneco.com, yurieasset.co.kr, namudesign.org and two others.

flsc.or.kr and a number of other domains — wavesurf.co.kr, essensoft.net, wmail13.mailplug.com and all-f.com among them — share at least some of the same mail servers.

Host names with 6 IP numbers:

mx01.mailplug.com carries IP addresses 121.156.118.202, 121.156.118.204 and 121.156.118.213, with 3 other addresses beyond those.

Host names with two IP numbers:

mx02.mailplug.com maps to two IP addresses — 223.26.214.9 and 223.26.214.10.

flsc.or.kr - robtex.com

flsc.or.kr

or.kr

or.kr

Key facts

Subdomains

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`flsc.or.kr`

`or.kr`