kernel-sys.jp - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

kernel-sys.jp

DNSSEC⚠️ Not signed
A210.197.75.141🇯🇵 ODN210.197.0.0/16
NSns0.big.or.jp ⭐
A2001:278:1033:2::72:20🇯🇵 ODN2001:278::/32 IPv6 BLOCK
PTRns0.big.or.jp
A210.197.72.20🇯🇵 ODN210.197.0.0/16
PTRns0.big.or.jp
NSns1.big.or.jp
A2001:278:1033:2::72:21🇯🇵 ODN2001:278::/32 IPv6 BLOCK
PTRns1.big.or.jp
A210.197.72.21🇯🇵 ODN210.197.0.0/16
PTRns1.big.or.jp
MXmail.kernel-sys.jp ⭐
A210.197.75.151🇯🇵 ODN210.197.0.0/16
PTRdmail-gw.big.or.jp
TXTv=spf1 mx +ip4:210.197.75.141 +ip4:210.197.75.151 +ip6:2001:278:1033:5::75:49...
SOAns0.big.or.jpquestion@big.or.jp 2025-08-26 #0

jp

DNSSEC🔒 Signed (DS record present)
NSz.dns.jp ⭐
NSa.dns.jp
NSb.dns.jp
NSc.dns.jp
NSd.dns.jp
NSe.dns.jp
NSf.dns.jp
NSg.dns.jp
NSh.dns.jp
SOAz.dns.jproot@dns.jp serial=1793335502

Previously NS for

kernel-sys.jp

Same first word

kernel-sys.jp
kernel-sys.co.jp
kernel-sys.com

Previous names

kerbkonus.jp
kerc-works.jp
keren.jp
kerendia.jp
kerenor.jp
kereta-recruit.jp
kereta.jp
keri.jp
keria.jp
kerikeri.jp
keril.jp
kering.jp
kerislab.jp
kerja.jp
kerlink.jp
kerma.jp
kermit.jp
kermode.jp
kern-alps.jp
kernel.jp

Next names

kernelcast.jp
kernelpanic.jp
kernelsmith.jp
kernelsoft.jp
kerneos.jp
kernow.jp
kero-chan.jp
kero-test.jp
kero.jp
kero3.jp
kerobo.jp
kerochan.jp
kerockets.jp
kerojapan.jp
kerokero.jp
kerokeroking.jp
kerokeroworks.jp
kerokin.jp

DNS History

5 records (4 active, 1 former)

20162017201820192020202120222023202420252026NSns0.big.or.jpns1.big.or.jpkernel-sys.jpMXmail.kernel-sys.jpA210.197.75.141
○NSkernel-sys.jp2015-05-18 → 2017-12-07 · 4 obs
● 2015-05-18 04:15:02
● 2017-12-07 22:08:08
○ 2026-09-10 01:08:34
○ 2026-10-30 04:51:14
●NSns0.big.or.jp2015-05-18 → 2026-10-30 · 2 obs
● 2015-05-18 04:15:02
● 2026-10-30 04:51:14
●NSns1.big.or.jp2015-05-18 → 2026-10-30 · 2 obs
● 2015-05-18 04:15:02
● 2026-10-30 04:51:14
●MXmail.kernel-sys.jp2015-05-18 → 2026-10-30 · 2 obs
● 2015-05-18 04:15:02
● 2026-10-30 04:51:14
●A210.197.75.1412015-05-18 → 2026-10-30 · 2 obs
● 2015-05-18 04:15:02
● 2026-10-30 04:51:14

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
jph.dns.jp, f.dns.jp, d.dns.jp, e.dns.jp...-
kernel-sys.jpns1.big.or.jp, ns0.big.or.jp4 records

✅ Authoritative Response

Server:210.197.72.21

NS records: ns1.big.or.jp, ns0.big.or.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for kernel-sys.jp (unsigned zone)

⏱️ Timing

Total: 948ms | Queries: -

📄 Records

TypeCountSample Data
A1210.197.75.141
NS2ns1.big.or.jp, ns0.big.or.jp
MX1mail.kernel-sys.jp (pri: 10)
TXT1v=spf1 mx +ip4:210.197.75.141 +ip4:210.1
SOA1ns0.big.or.jp question.big.or.jp

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns1.big.or.jp, ns0.big.or.jp, ns1.big.or.jp...)

Analysis

IP Addresses

kernel-sys.jp directs to one IP number, which is 210.197.75.141.

Among the host names that share IP numbers with kernel-sys.jp are www.wako-gp.co.jp, nas-an.jp, home.big.or.jp and two others.

Name Servers

DNS delegation for kernel-sys.jp points to two name servers: ns0.big.or.jp and ns1.big.or.jp.

kernel-sys.jp has the same name server delegation as a number of other domains, such as jmba.jp, studio-a.co.jp, amagasaki-ds.co.jp and two more.

kernel-sys.jp has at least partial name server overlap with other domains, such as fine-tokyo.com, kamakurawakamiya.jp, kkrhakodate.com and two others.

It is common to find these name servers paired with the name servers ns2.big.or.jp.

ns0.big.or.jp directs to 210.197.72.20 and 2001:278:1033:2::72:20. ns1.big.or.jp directs to 210.197.72.21 and 2001:278:1033:2::72:21. Each host name carries two IP addresses.

Mail Servers

kernel-sys.jp routes its mail through a single mail server, mail.kernel-sys.jp.

mail.kernel-sys.jp has exactly one IP number: 210.197.75.151.