🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`cppkorea.org`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::6815:3889^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3034::ac43:dfca^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.56.137^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.223.202^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`clark.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b57^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`clark.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c157^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`clark.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2157^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`clark.ns.cloudflare.com`
		A	108.162.193.87^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`clark.ns.cloudflare.com`
		A	172.64.33.87^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`clark.ns.cloudflare.com`
		A	173.245.59.87^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`clark.ns.cloudflare.com`
NS	`miki.ns.cloudflare.com`
		A	2606:4700:50::adf5:3aca^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`miki.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0ca^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`miki.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20ca^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`miki.ns.cloudflare.com`
		A	108.162.192.202^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`miki.ns.cloudflare.com`
		A	172.64.32.202^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`miki.ns.cloudflare.com`
		A	173.245.58.202^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`miki.ns.cloudflare.com`
MX	`aspmx1.dooray.com` ⭐
		A	180.210.67.77^{🇰🇷 NHN-AS-KR180.210.67.0/24 SKBroadbnad's coustemr route}
TXT	`v=spf1 include:_spf.dooray.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.56.137, 172.67.223.202
		IPv6 hints	2606:4700:3033::6815:3889, 2606:4700:3034::ac43:dfca
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=223, name=cloudflare-ech.com
SOA	`clark.ns.cloudflare.com`dns@cloudflare.com serial=2411866605

`org`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.org.afilias-nst.info` ⭐ ⚠️ Not in parent delegation
	NS	`a2.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`b0.org.afilias-nst.org`
	NS	`b2.org.afilias-nst.org`
	NS	`c0.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`d0.org.afilias-nst.org`
	SOA	`a0.org.afilias-nst.info`hostmaster@donuts.email serial=1787705348

Subdomains

www.cppkorea.org

Same first word

cppkorea.org

Similar names

Previous names

cppht.org

cppi.org

cppib.org

cppic.org

cppih.org

cppillinois.org

cppim.org

cppincose.org

cppinstitute.org

cppinternational.org

cppinvest.org

cppionline.org

cppistons.org

cppj.org

cppjobs.org

cppjs.org

Next names

cppl.org

cpplayground.org

cpplearning.org

cppli.org

cpplibrary.org

cpplist.org

cppll.org

cppllc.org

cpplondon.org

cpplp.org

cpplusassociates.org

cpplusrem.org

cppm.org

cppmb.org

cppmcc.org

cppmcov.org

DNS History

15 records (7 active, 8 former)

●NSclark.ns.cloudflare.com2018-05-20 → 2026-08-26 · 2 obs

● 2018-05-20 21:47:54
● 2026-08-26 01:16:08

●NSmiki.ns.cloudflare.com2018-05-20 → 2026-08-26 · 2 obs

● 2018-05-20 21:47:54
● 2026-08-26 01:16:08

●MXaspmx1.dooray.com2026-08-19 → 2026-08-26 · 2 obs

● 2026-08-19 01:56:10
● 2026-08-26 01:16:08

●A104.21.56.1372026-08-19 → 2026-08-26 · 5 obs

○ 2018-05-20 21:47:54
● 2026-08-19 01:56:10
○ 2026-08-25 21:34:36
● 2026-08-25 22:57:40
● 2026-08-26 01:16:08

○A104.27.130.12018-05-20 → 2018-05-20 · 3 obs

● 2018-05-20 21:47:54
○ 2026-08-19 01:56:10
○ 2026-08-26 01:16:08

○A104.27.131.12018-05-20 → 2018-05-20 · 3 obs

● 2018-05-20 21:47:54
○ 2026-08-19 01:56:10
○ 2026-08-26 01:16:08

●A172.67.223.2022026-08-19 → 2026-08-26 · 5 obs

○ 2018-05-20 21:47:54
● 2026-08-19 01:56:10
○ 2026-08-25 21:34:36
● 2026-08-25 22:57:40
● 2026-08-26 01:16:08

○A188.114.96.02026-08-25 → 2026-08-25 · 4 obs

○ 2026-08-19 01:56:10
● 2026-08-25 21:34:36
○ 2026-08-25 22:57:40
○ 2026-08-26 01:16:08

○A188.114.97.02026-08-25 → 2026-08-25 · 4 obs

○ 2026-08-19 01:56:10
● 2026-08-25 21:34:36
○ 2026-08-25 22:57:40
○ 2026-08-26 01:16:08

○A2400:cb00:2048:1::681b:82012018-05-20 → 2018-05-20 · 3 obs

● 2018-05-20 21:47:54
○ 2026-08-19 01:56:10
○ 2026-08-26 01:16:08

○A2400:cb00:2048:1::681b:83012018-05-20 → 2018-05-20 · 3 obs

● 2018-05-20 21:47:54
○ 2026-08-19 01:56:10
○ 2026-08-26 01:16:08

●A2606:4700:3033::6815:38892026-08-19 → 2026-08-26 · 5 obs

○ 2018-05-20 21:47:54
● 2026-08-19 01:56:10
○ 2026-08-25 21:34:36
● 2026-08-25 22:57:40
● 2026-08-26 01:16:08

●A2606:4700:3034::ac43:dfca2026-08-19 → 2026-08-26 · 5 obs

○ 2018-05-20 21:47:54
● 2026-08-19 01:56:10
○ 2026-08-25 21:34:36
● 2026-08-25 22:57:40
● 2026-08-26 01:16:08

○A2a06:98c1:3120::2026-08-25 → 2026-08-25 · 4 obs

○ 2026-08-19 01:56:10
● 2026-08-25 21:34:36
○ 2026-08-25 22:57:40
○ 2026-08-26 01:16:08

○A2a06:98c1:3121::2026-08-25 → 2026-08-25 · 4 obs

○ 2026-08-19 01:56:10
● 2026-08-25 21:34:36
○ 2026-08-25 22:57:40
○ 2026-08-26 01:16:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org	-
cppkorea.org	clark.ns.cloudflare.com, miki.ns.cloudflare.com	-

✅ Authoritative Response

Server:173.245.58.202

NS records: clark.ns.cloudflare.com, miki.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1002ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.56.137, 172.67.223.202`
AAAA	2	`2606:4700:3034::ac43:dfca, 2606:4700:3033::6815:3889`
NS	2	`clark.ns.cloudflare.com, miki.ns.cloudflare.com`
MX	1	`aspmx1.dooray.com (pri: 1)`
TXT	1	`v=spf1 include:_spf.dooray.com ~all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`clark.ns.cloudflare.com dns.cloudflare.c`

Analysis

Hierarchy

www.cppkorea.org is a subdomain of cppkorea.org.

IP Addresses

cppkorea.org directs to four IP numbers, which are 104.21.56.137, 172.67.223.202, 2606:4700:3033::6815:3889 and 2606:4700:3034::ac43:dfca.

s-ay.com, reedline.com.tr, artisanescape.com and two other host names share IP numbers with cppkorea.org.

Name Servers

DNS delegation for cppkorea.org points to two name servers: clark.ns.cloudflare.com and miki.ns.cloudflare.com.

cppkorea.org uses the same name servers as several other domains — among them lyq-0d9.workers.dev, vedentix.pages.dev, tokopastihemat.shop and two more.

The name servers of cppkorea.org overlap at least partially with those of other domains — among them macmorelectricalservices.com.au, ivyleague.tv, metcon.de and two more.

These name servers commonly appear in combination with the name servers austin.ns.cloudflare.com.

Hostnames that resolve to 6 IP addresses:

clark.ns.cloudflare.com has IP addresses 108.162.193.87, 172.64.33.87 and 173.245.59.87, plus 3 other.

miki.ns.cloudflare.com has IP addresses 108.162.192.202, 172.64.32.202 and 173.245.58.202, plus 3 other.

Mail Servers

Mail for cppkorea.org is handled by a single mail server, aspmx1.dooray.com.

cppkorea.org uses an identical mail server configuration to several other domains — among them ygyoon.com, thegada.com, hdc-youngchang.com and two more.

cppkorea.org has at least partial mail server overlap with other domains such as formecell.com, inucreative.com, toast.com and two more.

This set of mail servers commonly appears together with the mail servers aspmx2.dooray.com.

aspmx1.dooray.com has exactly one IP number: 180.210.67.77.

cppkorea.org - robtex.com

cppkorea.org

org

Subdomains

Same first word

Similar names

Previous names

Next names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`cppkorea.org`

`org`