kensystem.jp - robtex.com
kensystem.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 153.122.205.19🇯🇵 AS131921153.122.192.0/20 GMO CLOUD K.K. GMO GlobalSign Holdings K.K. | ||||||
| NS | kensystem.jp ⭐ | ||||||
| A | 153.122.205.19🇯🇵 AS131921153.122.192.0/20 GMO CLOUD K.K. GMO GlobalSign Holdings K.K. | ||||||
| NS | dnss10.so-net.ne.jp | ||||||
| A | 210.139.255.1🇯🇵 So-net210.139.128.0/17 Sony Network Communications Inc. | ||||||
| PTR | dnss10.so-net.ne.jp | ||||||
| NS | dnss11.so-net.ne.jp | ||||||
| A | 210.139.255.17🇯🇵 So-net210.139.128.0/17 Sony Network Communications Inc. | ||||||
| PTR | dnss11.so-net.ne.jp | ||||||
| MX | sonet-common-mx.xspmail.jp ⭐ | ||||||
| A | 2001:240:bb81:94:160:13:60:174🇯🇵 IIJ-AS2001:240::/32 IIJ IPv6 BLOCK ( AS2497 ) | ||||||
| PTR | sonet-common-mx.xspmail.jp | ||||||
| A | 160.13.60.174🇯🇵 IIJ-AS160.13.0.0/16 IIJ IPv4 BLOCK ( AS2497 ) | ||||||
| PTR | sonet-common-mx.xspmail.jp | ||||||
| TXT | v=spf1 include:_spf.shared-server.net +include:plusdomain.spf.so-net.ne.jp ~all | ||||||
| SOA | kensystem.jphostmaster@kensystem.jp serial=2602171610 | ||||||
jp
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | z.dns.jp ⭐ | ||||||
| NS | a.dns.jp | ||||||
| NS | b.dns.jp | ||||||
| NS | c.dns.jp | ||||||
| NS | d.dns.jp | ||||||
| NS | e.dns.jp | ||||||
| NS | f.dns.jp | ||||||
| NS | g.dns.jp | ||||||
| NS | h.dns.jp | ||||||
| SOA | z.dns.jproot@dns.jp serial=1778883303 | ||||||
NS for
kensystem.jp |
Same first word
kensystem.com.tw |
kensystem.jp |
kensystem.com |
Similar names
DNS History
9 records (5 active, 4 former)
●NSdnss10.so-net.ne.jp2016-07-20 → 2026-05-15 · 3 obs
● 2016-07-20 00:56:40
● 2026-05-15 22:50:50
●NSdnss11.so-net.ne.jp2016-07-20 → 2026-05-15 · 3 obs
● 2016-07-20 00:56:40
● 2026-05-15 22:50:50
●NSkensystem.jp2016-07-20 → 2026-05-15 · 3 obs
● 2016-07-20 00:56:40
● 2026-05-15 22:50:50
○NSns01.yahoodomains.jp2015-05-10 → 2015-12-11 · 4 obs
● 2015-12-11 15:30:36
○ 2016-03-24 23:11:50
○ 2026-05-15 22:50:50
○NSns02.yahoodomains.jp2015-05-10 → 2015-12-11 · 4 obs
● 2015-12-11 15:30:36
○ 2016-03-24 23:11:50
○ 2026-05-15 22:50:50
○MXmxpin.ms.so-net.ne.jp2016-07-20 → 2017-03-22 · 4 obs
● 2017-03-22 17:02:40
○ 2026-05-13 08:30:22
○ 2026-05-15 22:50:50
●MXsonet-common-mx.xspmail.jp2026-05-13 → 2026-05-15 · 3 obs
● 2026-05-13 08:30:22
● 2026-05-15 22:50:50
●A153.122.205.192026-05-13 → 2026-05-15 · 3 obs
● 2026-05-13 08:30:22
● 2026-05-15 22:50:50
○A210.168.35.32015-05-10 → 2015-12-11 · 4 obs
● 2015-12-11 15:30:36
○ 2016-03-24 23:11:50
○ 2026-05-15 22:50:50
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp... | - |
| kensystem.jp | dnss10.so-net.ne.jp, dnss11.so-net.ne.jp | - |
✅ Authoritative Response
Server:210.139.255.17
NS records: dnss10.so-net.ne.jp, dnss11.so-net.ne.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for kensystem.jp (unsigned zone)
⏱️ Timing
Total: 1463ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 153.122.205.19 |
| NS | 2 | dnss11.so-net.ne.jp, dnss10.so-net.ne.jp |
| MX | 1 | sonet-common-mx.xspmail.jp (pri: 10) |
| TXT | 1 | v=spf1 include:_spf.shared-server.net +i |
| SOA | 1 | kensystem.jp hostmaster.kensystem.jp |
Analysis
Name Server Role
kensystem.jp serves as a name server for kensystem.jp.
dnss10.so-net.ne.jp and dnss11.so-net.ne.jp are commonly used as name servers together with kensystem.jp.
IP Addresses
kensystem.jp points to an IP address: 153.122.205.19.
other host names include tokyo-re-services.com, unipex.co.jp, www.fujiichi.com, sadanari.com and toyco.jp; they share IP numbers with kensystem.jp.
Name Servers
kensystem.jp is delegated to three name servers: kensystem.jp, dnss10.so-net.ne.jp and dnss11.so-net.ne.jp.
kensystem.jp at least partially shares name servers with other domains, for instance puff-yk.com, casting-machine.co.jp, jrp.co.jp, swallownest-design.com and pubzine.com.
Host names with one IP:
kensystem.jp points to 153.122.205.19; dnss10.so-net.ne.jp points to 210.139.255.1; dnss11.so-net.ne.jp points to 210.139.255.17.
Mail Servers
kensystem.jp is handled by a single mail server, sonet-common-mx.xspmail.jp.
kensystem.jp uses the same mail server setup as other domains, for instance fast-track.jp, tsuji-law.jp, lastingever.com, kohno-kk.com and omakase-support.com.
sonet-common-mx.xspmail.jp resolves to two IPs: 2001:240:bb81:94:160:13:60:174 and 160.13.60.174.