k-system.org - robtex.com

k-system.org

DNSSEC⚠️ Not signed
A153.122.205.38🇯🇵 AS131921153.122.192.0/20 GMO CLOUD K.K. GMO GlobalSign Holdings K.K.
NSns11.value-domain.com ⭐ ⚠️ Not in parent delegation
A172.64.52.98🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
A172.64.52.184🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
NSns1.value-domain.com ⚠️ Not in zone NS records
A172.64.52.38🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
A172.64.52.161🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
NSns12.value-domain.com ⚠️ Not in zone NS records
A172.64.53.86🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
A172.64.53.188🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
NSns13.value-domain.com ⚠️ Not in zone NS records
A172.64.52.98🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
A172.64.52.184🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
NSns2.value-domain.com ⚠️ Not in parent delegation
A172.64.53.3🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
A172.64.53.115🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
MXmx.it-information-guide.info ⭐
A153.122.206.94🇯🇵 AS131921153.122.192.0/20 GMO CLOUD K.K. GMO GlobalSign Holdings K.K.
MXmx.k-system.org(100)
A153.122.206.94🇯🇵 AS131921153.122.192.0/20 GMO CLOUD K.K. GMO GlobalSign Holdings K.K.
TXTv=spf1 include:_spf.shared-server.net ~all
SOAns1.value-domain.comhostmaster@k-system.org 2025-06-12 #18

org

DNSSEC🔒 Signed (DS record present)
NSa0.org.afilias-nst.info ⭐ ⚠️ Not in parent delegation
NSa2.org.afilias-nst.info ⚠️ Not in parent delegation
NSb0.org.afilias-nst.org
NSb2.org.afilias-nst.org
NSc0.org.afilias-nst.info ⚠️ Not in parent delegation
NSd0.org.afilias-nst.org
SOAa0.org.afilias-nst.infohostmaster@donuts.email serial=1778565849

Previously MX for

k-system.org

Subdomains

mx.k-system.org

Same first word

k-system.org
k-system.net
k-system.co.jp
k-system.nu

Similar names

system-k.co.jp
mystk-es.com
system-k.com
system-k.net

DNS History

12 records (8 active, 4 former)

201820192020202120222023202420252026NSns1.value-domain.comns11.value-domain.comns12.value-domain.comns13.value-domain.comns2.value-domain.comns.namedserver.netns2.namedserver.netMXmx.it-information-guide.infomx.k-system.orgk-system.orgA153.122.205.38153.122.102.58
○NSns.namedserver.net2017-09-30 → 2017-09-30 · 3 obs
● 2017-09-30 09:15:04
○ 2026-04-08 01:38:28
○ 2026-05-12 06:34:30
●NSns1.value-domain.com2026-04-08 → 2026-05-12 · 3 obs
○ 2017-09-30 09:15:04
● 2026-04-08 01:38:28
● 2026-05-12 06:34:30
●NSns11.value-domain.com2026-04-08 → 2026-05-12 · 3 obs
○ 2017-09-30 09:15:04
● 2026-04-08 01:38:28
● 2026-05-12 06:34:30
●NSns12.value-domain.com2026-04-08 → 2026-05-12 · 3 obs
○ 2017-09-30 09:15:04
● 2026-04-08 01:38:28
● 2026-05-12 06:34:30
●NSns13.value-domain.com2026-04-08 → 2026-05-12 · 3 obs
○ 2017-09-30 09:15:04
● 2026-04-08 01:38:28
● 2026-05-12 06:34:30
○NSns2.namedserver.net2017-09-30 → 2017-09-30 · 3 obs
● 2017-09-30 09:15:04
○ 2026-04-08 01:38:28
○ 2026-05-12 06:34:30
●NSns2.value-domain.com2026-04-08 → 2026-05-12 · 3 obs
○ 2017-09-30 09:15:04
● 2026-04-08 01:38:28
● 2026-05-12 06:34:30
○MXk-system.org2017-09-30 → 2017-09-30 · 3 obs
● 2017-09-30 09:15:04
○ 2026-04-08 01:38:28
○ 2026-05-12 06:34:30
●MXmx.it-information-guide.info2026-04-08 → 2026-05-12 · 3 obs
○ 2017-09-30 09:15:04
● 2026-04-08 01:38:28
● 2026-05-12 06:34:30
●MXmx.k-system.org2026-04-08 → 2026-05-12 · 3 obs
○ 2017-09-30 09:15:04
● 2026-04-08 01:38:28
● 2026-05-12 06:34:30
○A153.122.102.582017-09-30 → 2017-09-30 · 3 obs
● 2017-09-30 09:15:04
○ 2026-04-08 01:38:28
○ 2026-05-12 06:34:30
●A153.122.205.382026-04-08 → 2026-05-12 · 3 obs
○ 2017-09-30 09:15:04
● 2026-04-08 01:38:28
● 2026-05-12 06:34:30

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
orgb0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org-
k-system.orgns13.value-domain.com, ns12.value-domain.com, ns11.value-domain.com-

✅ Authoritative Response

Server:172.64.53.188

NS records: ns13.value-domain.com, ns12.value-domain.com, ns11.value-domain.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for k-system.org (unsigned zone)

⏱️ Timing

Total: 859ms | Queries: -

📄 Records

TypeCountSample Data
A1153.122.205.38
NS2ns2.value-domain.com, ns1.value-domain.com
MX2mx.k-system.org (pri: 100), mx.it-information-guide.info (pri: 10)
TXT1v=spf1 include:_spf.shared-server.net ~a
SOA1ns1.value-domain.com hostmaster.k-system

Analysis

Hierarchy

k-system.org is a parent of mx.k-system.org.

IP Addresses

k-system.org points to a single IP number: 153.122.205.38.

Other host names, for instance tanaka-d.com, taiko-denki.com, ranpu.co.jp, kaname-k.com and hku.co.jp share IP numbers with k-system.org.

Name Servers

k-system.org is delegated to five name servers: ns11.value-domain.com, ns12.value-domain.com, ns13.value-domain.com, ns1.value-domain.com and ns2.value-domain.com.

k-system.org at least partially shares name servers with other domains, for instance myself.biz, edco.jp, decogreen.net, www.ffr548tyfhe.jp and custom-body.net.

these name servers are commonly used with ns3.value-domain.com, ns4.value-domain.com and ns5.value-domain.com.

Host names with two IP numbers:

ns11.value-domain.com points to: 172.64.52.98 and 172.64.52.184

ns12.value-domain.com points to: 172.64.53.86 and 172.64.53.188

ns13.value-domain.com points to: 172.64.52.98 and 172.64.52.184

ns1.value-domain.com points to: 172.64.52.38 and 172.64.52.161

ns2.value-domain.com points to: 172.64.53.3 and 172.64.53.115

Names pointing to 172.64.52.98: ns11.value-domain.com and ns13.value-domain.com

Names pointing to 172.64.52.184: ns11.value-domain.com and ns13.value-domain.com

Mail Servers

k-system.org is handled by two mail servers: mx.it-information-guide.info and mx.k-system.org.

k-system.org shares mail servers with other domains at least in part, for instance aman-style.com, it-information-guide.info, momiki.net, nkm.jp and mlc.one.

These mail servers are often used with mx.aman-style.com, mx.momiki.net, mx.nkm.jp, mx.mlc.one and mx.takaraya.info.

Host names sharing a single IP:

mx.it-information-guide.info points to 153.122.206.94

mx.k-system.org points to 153.122.206.94

Host names that point to 153.122.206.94: mx.it-information-guide.info and mx.k-system.org