techknowledge.co.kr - dns.ninja

`techknowledge.co.kr`

DNSSEC	⚠️ Not signed
A	2606:4700:3034::6815:2bbc^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::ac43:b84c^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.43.188^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.184.76^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`chase.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2c9c^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`chase.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c39c^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`chase.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:239c^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`chase.ns.cloudflare.com`
		A	108.162.195.156^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`chase.ns.cloudflare.com`
		A	162.159.44.156^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`chase.ns.cloudflare.com`
		A	172.64.35.156^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`chase.ns.cloudflare.com`
NS	`rayne.ns.cloudflare.com`
		A	2606:4700:50::a29f:260b^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rayne.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c20b^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`rayne.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:220b^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`rayne.ns.cloudflare.com`
		A	108.162.194.11^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rayne.ns.cloudflare.com`
		A	162.159.38.11^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rayne.ns.cloudflare.com`
		A	172.64.34.11^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rayne.ns.cloudflare.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c23::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`yuiadrs-in-f27.1e100.net`
		A	192.179.18.27^{🇺🇸 Google192.178.0.0/15}
			PTR	`ry-in-f27.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c14::1b^{🇨🇱 Google2800:3f0:4003::/48}
		A	192.178.234.26^{🇺🇸 Google192.178.0.0/15}
			PTR	`ncsclj-in-f26.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1a^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f26.1e100.net`
		A	172.253.116.26^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f26.1e100.net`
MX	`aspmx2.googlemail.com`⁽¹⁰⁾
		A	2800:3f0:4003:c14::1b^{🇨🇱 Google2800:3f0:4003::/48}
		A	192.178.234.27^{🇺🇸 Google192.178.0.0/15}
			PTR	`ncsclj-in-f27.1e100.net`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.43.188, 172.67.184.76
		IPv6 hints	2606:4700:3034::6815:2bbc, 2606:4700:3035::ac43:b84c
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=106, name=cloudflare-ech.com
SOA	`chase.ns.cloudflare.com`dns@cloudflare.com serial=2410590820

`co.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=2608120507

WOT: UNKNOWN (62/100)

Same first word

Similar names

knowledgetech.com

knowledgetech.org

DNS History

10 records (10 active, 0 former)

●NSchase.ns.cloudflare.com2026-06-30 → 2026-08-11 · 2 obs

● 2026-06-30 05:00:10
● 2026-08-11 22:15:46

●NSrayne.ns.cloudflare.com2026-06-30 → 2026-08-11 · 2 obs

● 2026-06-30 05:00:10
● 2026-08-11 22:15:46

●MXalt1.aspmx.l.google.com2026-06-30 → 2026-08-11 · 2 obs

● 2026-06-30 05:00:10
● 2026-08-11 22:15:46

●MXalt2.aspmx.l.google.com2026-06-30 → 2026-08-11 · 2 obs

● 2026-06-30 05:00:10
● 2026-08-11 22:15:46

●MXaspmx.l.google.com2026-06-30 → 2026-08-11 · 2 obs

● 2026-06-30 05:00:10
● 2026-08-11 22:15:46

●MXaspmx2.googlemail.com2026-06-30 → 2026-08-11 · 2 obs

● 2026-06-30 05:00:10
● 2026-08-11 22:15:46

●A104.21.43.1882026-06-30 → 2026-08-11 · 2 obs

● 2026-06-30 05:00:10
● 2026-08-11 22:15:46

●A172.67.184.762026-06-30 → 2026-08-11 · 2 obs

● 2026-06-30 05:00:10
● 2026-08-11 22:15:46

●A2606:4700:3034::6815:2bbc2026-06-30 → 2026-08-11 · 2 obs

● 2026-06-30 05:00:10
● 2026-08-11 22:15:46

●A2606:4700:3035::ac43:b84c2026-06-30 → 2026-08-11 · 2 obs

● 2026-06-30 05:00:10
● 2026-08-11 22:15:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
kr	c.dns.kr, e.dns.kr, d.dns.kr, g.dns.kr...	-
techknowledge.co.kr	chase.ns.cloudflare.com, rayne.ns.cloudflare.com	-

✅ Authoritative Response

Server:162.159.38.11

NS records: chase.ns.cloudflare.com, rayne.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for techknowledge.co.kr (unsigned zone)

⏱️ Timing

Total: 1013ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.43.188, 172.67.184.76`
AAAA	2	`2606:4700:3035::ac43:b84c, 2606:4700:3034::6815:2bbc`
NS	2	`chase.ns.cloudflare.com, rayne.ns.cloudflare.com`
MX	4	`aspmx.l.google.com (pri: 1), aspmx2.googlemail.com (pri: 10)...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`chase.ns.cloudflare.com dns.cloudflare.c`

Analysis

IP Addresses

techknowledge.co.kr has four IP addresses: 104.21.43.188, 172.67.184.76, 2606:4700:3034::6815:2bbc and 2606:4700:3035::ac43:b84c.

Two other host names, along with comedycentralstage.com, myreviewdoc.com and bluecrossanimalhospital.ca, also share IP numbers with techknowledge.co.kr.

Name Servers

The NS records for techknowledge.co.kr delegate to chase.ns.cloudflare.com and rayne.ns.cloudflare.com.

techknowledge.co.kr shares its NS records with other domains, for example labbackedyou.info, 123watches.eu, cenligne.shop and two others.

techknowledge.co.kr partially shares its NS delegation with several other domains, including unnurandwalter.com, zkf.hu, skylark.org.uk and two others.

These name servers are regularly seen alongside karsyn.ns.cloudflare.com and ophelia.ns.cloudflare.com as name servers.

DNS names with 6 IP addresses:

chase.ns.cloudflare.com maps to 108.162.195.156, 162.159.44.156, 172.64.35.156 and 3 additional IP addresses.

rayne.ns.cloudflare.com maps to 108.162.194.11, 162.159.38.11, 172.64.34.11 and 3 additional IP addresses.

Mail Servers

Four mail servers handle email for techknowledge.co.kr: aspmx2.googlemail.com, aspmx.l.google.com, alt1.aspmx.l.google.com and alt2.aspmx.l.google.com.

There is at least a partial MX overlap between techknowledge.co.kr and other domains, including ns500765.ns500734.ns500734.ns500693.ns500699.ns500734.ns500693.ns500588.ns500588.ns500588.ns500632.ns500632.ns500588.ns500612.ns500612.ns500110.dtrkdll.com, ns500742.ns500754.ns500742.ns500731.ns500731.ns500742.ns500754.ns500754.ns500688.ns500671.ns500678.ns500678.ns500678.ns500291.ns500131.lustychickser.com, ns500599.ns500724.ns500724.ns500599.ns500599.ns500599.ns500724.ns500599.ns500724.ns500737.ns500724.ns500737.ns500697.ns500583.ns500669.www.yummyflingsfinder.com and two others.

These mail servers frequently co-occur with the mail servers alt4.aspmx.l.google.com, alt3.aspmx.l.google.com, aspmx3.googlemail.com and two others.

With two IP addresses each, aspmx2.googlemail.com resolves to 192.178.234.27 and 2800:3f0:4003:c14::1b; aspmx.l.google.com resolves to 192.179.18.27 and 2607:f8b0:4004:c23::1b; alt1.aspmx.l.google.com resolves to 192.178.234.26 and 2800:3f0:4003:c14::1b; and alt2.aspmx.l.google.com resolves to 172.253.116.26 and 2a00:1450:400b:c02::1a.

aspmx2.googlemail.com and alt1.aspmx.l.google.com each have 2800:3f0:4003:c14::1b IP addresses.