kernel.co.jp - dns.ninja
kernel.co.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 118.27.100.155🇯🇵 GMO-INTERNET118.27.100.0/24 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan | ||||||
| PTR | www177.conoha.ne.jp | ||||||
| NS | ns-a1.conoha.io ⭐ | ||||||
| A | 2400:8500:3000::88🇯🇵 GMO-DNS2400:8500:3000::/48 GMO Internet,inc. | ||||||
| PTR | ns-a1.cnode.io | ||||||
| A | 157.7.33.88🇯🇵 GMO-DNS157.7.33.0/24 GMO Internet,inc. Network-Team. | ||||||
| PTR | ns-a1.cnode.io | ||||||
| NS | ns-a2.conoha.io | ||||||
| A | 2404:8680:1101:310::53🇹🇭 GMO-ZCOM-AS-TH2404:8680:1101::/48 GMO-Z com NetDesign Holdings Co., Ltd. 246 Times Square Building 10th Fl., Room 10/04, Sukhumvit 12-14 Rd., Klongtoey Klongtoey, Bangkok 10110 | ||||||
| A | 150.95.23.148🇹🇭 GMO-ZCOM-AS-TH150.95.20.0/22 GMO-Z com NetDesign Holdings Co., Ltd. 246 Times Square Building 10th Fl., Room 10/04, Sukhumvit 12-14 Rd., Klongtoey Klongtoey, Bangkok 10110 | ||||||
| PTR | v150-95-23-148.a001.m.bkk1.static.cnode.io | ||||||
| NS | ns-a3.conoha.io | ||||||
| A | 2404:f080:1101:310::53🇻🇳 GMO-ZCOM-AS-VN2404:f080:1000::/36 GMO-Z.com RUNSYSTEM JSC. Ocean Park Building 6th Floor, 1 Dao Duy Anh, Phuong Mai Ward, Dong Da Dist, Ha Noi | ||||||
| A | 150.95.19.148🇻🇳 GMO-ZCOM-AS-VN150.95.16.0/22 RUNSYSTEM-VN | ||||||
| PTR | v150-95-19-148.a001.m.han1.static.cnode.io | ||||||
| MX | mailgw3.oneoffice.jp ⭐ | ||||||
| A | 211.7.82.7🇯🇵 TOKAI-NETWORK211.7.64.0/19 TOKAI-NET | ||||||
| TXT | _globalsign-domain-verification=VizmmQkh3S2YY-3NHo2YKFk8-zL2ggfF3yL4BARJ4d | ||||||
| TXT | google-site-verification=_ISNng6h7yV4Rbyuu0MSRa3mBjhbxlCDULmxz6tPNA8 | ||||||
| TXT | google-site-verification=s1hN7IsIAEHm49ozvfjBk3wpMBPy-_auat9EEIx4SzI | ||||||
| TXT | v=spf1 mx mx:kernel.gr.jp ip4:153.127.199.105 ip4:150.95.146.81 ip4:160.17.0.... | ||||||
| SOA | ns-a1.conoha.iopostmaster@kernel.co.jp serial=1777198230 | ||||||
co.jp
| DNSSEC | ⚠️ Not signed | ||||||
| TXT | co.jp. | ||||||
WOT: SAFE (58/100)
Previously MX for
kernel.co.jp |
Subdomains
www.kernel.co.jp |
Same first word
Similar names
DNS History
11 records (5 active, 6 former)
○NSmaster.dns.ne.jp2015-05-31 → 2016-12-23 · 4 obs
● 2016-12-23 23:06:02
○ 2026-02-17 17:56:14
○ 2026-06-12 00:34:18
●NSns-a1.conoha.io2026-02-17 → 2026-06-12 · 3 obs
● 2026-02-17 17:56:14
● 2026-06-12 00:34:18
●NSns-a2.conoha.io2026-02-17 → 2026-06-12 · 3 obs
● 2026-02-17 17:56:14
● 2026-06-12 00:34:18
●NSns-a3.conoha.io2026-02-17 → 2026-06-12 · 3 obs
● 2026-02-17 17:56:14
● 2026-06-12 00:34:18
○NSns1.dns.ne.jp2015-05-31 → 2016-12-23 · 4 obs
● 2016-12-23 23:06:02
○ 2026-02-17 17:56:14
○ 2026-06-12 00:34:18
○NSns2.dns.ne.jp2015-05-31 → 2016-12-23 · 4 obs
● 2016-12-23 23:06:02
○ 2026-02-17 17:56:14
○ 2026-06-12 00:34:18
○MXjuno.kernel.co.jp2015-05-31 → 2016-12-23 · 4 obs
● 2016-12-23 23:06:02
○ 2026-02-17 17:56:14
○ 2026-06-12 00:34:18
○MXkernel.co.jp2015-05-31 → 2016-12-23 · 4 obs
● 2016-12-23 23:06:02
○ 2026-02-17 17:56:14
○ 2026-06-12 00:34:18
●MXmailgw3.oneoffice.jp2026-02-17 → 2026-06-12 · 3 obs
● 2026-02-17 17:56:14
● 2026-06-12 00:34:18
●A118.27.100.1552026-02-17 → 2026-06-12 · 3 obs
● 2026-02-17 17:56:14
● 2026-06-12 00:34:18
○A49.212.80.612015-05-31 → 2016-12-23 · 4 obs
● 2016-12-23 23:06:02
○ 2026-02-17 17:56:14
○ 2026-06-12 00:34:18
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | h.dns.jp, e.dns.jp, a.dns.jp, d.dns.jp... | - |
| kernel.co.jp | ns-a3.conoha.io, ns-a1.conoha.io, ns-a2.conoha.io | - |
✅ Authoritative Response
Server:150.95.19.148
NS records: ns-a3.conoha.io, ns-a1.conoha.io, ns-a2.conoha.io
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for kernel.co.jp (unsigned zone)
⏱️ Timing
Total: 2105ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 118.27.100.155 |
| NS | 3 | ns-a3.conoha.io, ns-a1.conoha.io... |
| MX | 1 | mailgw3.oneoffice.jp (pri: 10) |
| TXT | 4 | google-site-verification=s1hN7IsIAEHm49o, _globalsign-domain-verification=VizmmQkh... |
| SOA | 1 | ns-a1.conoha.io postmaster.kernel.co.jp |
Analysis
Hierarchy
www.kernel.co.jp is delegated beneath kernel.co.jp.
IP Addresses
kernel.co.jp has exactly one IP address — 118.27.100.155.
m-platine.com, nyango.com, 99system.com plus two other host names have IP numbers in common with kernel.co.jp.
Name Servers
kernel.co.jp carries NS records delegating to ns-a1.conoha.io, ns-a2.conoha.io and ns-a3.conoha.io.
There is at least partial name server overlap between kernel.co.jp and other domains — kaitorij.com, kanakazufufu55.com, tpo-online.com and two more among them.
ns-a1.conoha.io, ns-a2.conoha.io and ns-a3.conoha.io are three hostnames that each resolve to a pair of IP addresses: ns-a1.conoha.io to 157.7.33.88 and 2400:8500:3000::88, ns-a2.conoha.io to 150.95.23.148 and 2404:8680:1101:310::53, and ns-a3.conoha.io to 150.95.19.148 and 2404:f080:1101:310::53.
Mail Servers
kernel.co.jp uses one mail server — mailgw3.oneoffice.jp.
The mail server setup of kernel.co.jp matches that of other domains such as mnlaw.jp, tokyosoil.co.jp, dodesign.jp and two others.
At least some of the mail servers used by kernel.co.jp are shared with other domains: marudai.co.jp, marushin-foods.co.jp, itec.co.jp and two others among them.
mailgw3.oneoffice.jp carries a single IP number, which is 211.7.82.7.