istent.co.kr - dns.ninja

`istent.co.kr`

DNSSEC	⚠️ Not signed
A	216.198.79.1^{🇺🇸 Amazon216.198.79.0/24 EC2 Prefix}
NS	`blair.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:2679^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`blair.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c279^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`blair.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2279^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`blair.ns.cloudflare.com`
		A	108.162.194.121^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`blair.ns.cloudflare.com`
		A	162.159.38.121^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`blair.ns.cloudflare.com`
		A	172.64.34.121^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`blair.ns.cloudflare.com`
NS	`fred.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b71^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`fred.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c171^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`fred.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2171^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`fred.ns.cloudflare.com`
		A	108.162.193.113^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`fred.ns.cloudflare.com`
		A	172.64.33.113^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`fred.ns.cloudflare.com`
		A	173.245.59.113^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`fred.ns.cloudflare.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c08::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bi-in-f26.1e100.net`
		A	142.251.163.27^{🇺🇸 Google142.251.163.0/24}
			PTR	`wv-in-f27.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c0f::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.27^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f27.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1b^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f27.1e100.net`
		A	172.253.116.26^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f26.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4009:c0f::1a^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f26.1e100.net`
		A	192.178.223.26^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f26.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:400c:c23::1b^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f27.1e100.net`
		A	172.253.157.27^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f27.1e100.net`
TXT	`google-gws-recovery-domain-verification=73143108`
TXT	`google-site-verification=qjTK84O26sZpSTblWu_Fkh5A8PMvqlAOZ0XDMIvSdYk`
TXT	`v=spf1 include:_spf.google.com -all`
SOA	`blair.ns.cloudflare.com`dns@cloudflare.com serial=2409414315

`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=2607301064

WOT: UNKNOWN (62/100)

Subdomains

wblock.istent.co.kr

Same first word

istent.de

istent.co.kr

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DNS History

16 records (8 active, 8 former)

●NSblair.ns.cloudflare.com2026-07-21 → 2026-07-30 · 3 obs

○ 2026-03-22 05:02:32
● 2026-07-21 20:51:18
● 2026-07-30 17:54:08

●NSfred.ns.cloudflare.com2026-07-21 → 2026-07-30 · 3 obs

○ 2026-03-22 05:02:32
● 2026-07-21 20:51:18
● 2026-07-30 17:54:08

○NSns302.dnsever.com2026-03-22 → 2026-03-22 · 3 obs

● 2026-03-22 05:02:32
○ 2026-07-21 20:51:18
○ 2026-07-30 17:54:08

○NSns327.dnsever.com2026-03-22 → 2026-03-22 · 3 obs

● 2026-03-22 05:02:32
○ 2026-07-21 20:51:18
○ 2026-07-30 17:54:08

○NSns352.dnsever.com2026-03-22 → 2026-03-22 · 3 obs

● 2026-03-22 05:02:32
○ 2026-07-21 20:51:18
○ 2026-07-30 17:54:08

○NSns371.dnsever.com2026-03-22 → 2026-03-22 · 3 obs

● 2026-03-22 05:02:32
○ 2026-07-21 20:51:18
○ 2026-07-30 17:54:08

○NSns381.dnsever.com2026-03-22 → 2026-03-22 · 3 obs

● 2026-03-22 05:02:32
○ 2026-07-21 20:51:18
○ 2026-07-30 17:54:08

●MXalt1.aspmx.l.google.com2026-07-21 → 2026-07-30 · 3 obs

○ 2026-04-09 21:13:12
● 2026-07-21 20:51:18
● 2026-07-30 17:54:08

●MXalt2.aspmx.l.google.com2026-07-21 → 2026-07-30 · 3 obs

○ 2026-04-09 21:13:12
● 2026-07-21 20:51:18
● 2026-07-30 17:54:08

●MXalt3.aspmx.l.google.com2026-07-21 → 2026-07-30 · 3 obs

○ 2026-04-09 21:13:12
● 2026-07-21 20:51:18
● 2026-07-30 17:54:08

●MXalt4.aspmx.l.google.com2026-07-21 → 2026-07-30 · 3 obs

○ 2026-04-09 21:13:12
● 2026-07-21 20:51:18
● 2026-07-30 17:54:08

●MXaspmx.l.google.com2026-07-21 → 2026-07-30 · 3 obs

○ 2026-04-09 21:13:12
● 2026-07-21 20:51:18
● 2026-07-30 17:54:08

○MXmail.bizboxa.com2026-04-09 → 2026-04-09 · 4 obs

○ 2026-03-22 05:02:32
● 2026-04-09 21:13:12
○ 2026-07-21 20:51:18
○ 2026-07-30 17:54:08

○MXwblock.istent.co.kr2026-03-22 → 2026-03-22 · 3 obs

● 2026-03-22 05:02:32
○ 2026-04-09 21:13:12
○ 2026-07-30 17:54:08

○A183.111.67.1332026-03-22 → 2026-04-29 · 4 obs

● 2026-03-22 05:02:32
● 2026-04-29 00:17:44
○ 2026-06-27 08:44:34
○ 2026-07-30 17:54:08

●A216.198.79.12026-06-27 → 2026-07-30 · 3 obs

○ 2026-04-29 00:17:44
● 2026-06-27 08:44:34
● 2026-07-30 17:54:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
kr	b.dns.kr, c.dns.kr, d.dns.kr, e.dns.kr...	-
istent.co.kr	fred.ns.cloudflare.com, blair.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.194.121

NS records: fred.ns.cloudflare.com, blair.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

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

⏱️ Timing

Total: 884ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`216.198.79.1`
NS	2	`blair.ns.cloudflare.com, fred.ns.cloudflare.com`
MX	5	`aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...`
TXT	3	`google-gws-recovery-domain-verification=, google-site-verification=qjTK84O26sZpSTb...`
SOA	1	`blair.ns.cloudflare.com dns.cloudflare.c`

Analysis

Hierarchy

wblock.istent.co.kr is delegated beneath istent.co.kr.

IP Addresses

istent.co.kr points to a single IP number: 216.198.79.1.

Additional host names — superfrey.com, devopx.com, cinemafocus.in and two others — share IP numbers with istent.co.kr.

Name Servers

Two name servers handle the delegation for istent.co.kr: blair.ns.cloudflare.com and fred.ns.cloudflare.com.

istent.co.kr shares its name server setup with other domains, including verapax.com, accurateaz.com, chuyendoixanh.org and two others.

There is at least partial name server overlap between istent.co.kr and other domains — freemobilespy.net, highmark.in, bollywoodcasinos.top and two more among them.

These name servers frequently co-occur with the name servers fatima.ns.cloudflare.com and edward.ns.cloudflare.com.

Host names with 6 IP numbers:

blair.ns.cloudflare.com resolves to 108.162.194.121, 162.159.38.121 and 172.64.34.121 among others, with 3 other IP addresses in total.

fred.ns.cloudflare.com resolves to 108.162.193.113, 172.64.33.113 and 173.245.59.113 among others, with 3 other IP addresses in total.

Mail Servers

Five mail servers handle istent.co.kr: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.

istent.co.kr shares mail servers — at least in part — with other domains, including 3nd.it, imperiumsp.com, ikorzh.com and two others.

These mail servers are frequently paired with the mail servers alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and aspmx3.googlemail.com.

Host names with two IP numbers:

aspmx.l.google.com resolves to two addresses: 142.251.163.27 and 2607:f8b0:4004:c08::1a.

alt1.aspmx.l.google.com resolves to two addresses: 108.177.123.27 and 2800:3f0:4003:c0f::1a.

alt2.aspmx.l.google.com resolves to two addresses: 172.253.116.26 and 2a00:1450:400b:c02::1b.

alt3.aspmx.l.google.com resolves to two addresses: 192.178.223.26 and 2a00:1450:4009:c0f::1a.

alt4.aspmx.l.google.com resolves to two addresses: 172.253.157.27 and 2a00:1450:400c:c23::1b.