reason.co.jp - robtex.com

reason.co.jp

DNSSEC⚠️ Not signed
A153.122.205.21🇯🇵 AS131921153.122.192.0/20 GMO CLOUD K.K. GMO GlobalSign Holdings K.K.
NSreason.co.jp ⭐
A153.122.205.21🇯🇵 AS131921153.122.192.0/20 GMO CLOUD K.K. GMO GlobalSign Holdings K.K.
NSdnss10.so-net.ne.jp
A210.139.255.1🇯🇵 So-net210.139.128.0/17 Sony Network Communications Inc.
PTRdnss10.so-net.ne.jp
NSdnss11.so-net.ne.jp
A210.139.255.17🇯🇵 So-net210.139.128.0/17 Sony Network Communications Inc.
PTRdnss11.so-net.ne.jp
MXmx.reason.co.jp ⭐
A153.122.206.114🇯🇵 AS131921153.122.192.0/20 GMO CLOUD K.K. GMO GlobalSign Holdings K.K.
TXTv=spf1 include:_spf.shared-server.net +mx ~all
SOAreason.co.jphostmaster@reason.co.jp serial=2602171610

co.jp

DNSSEC🔒 Signed (DS record present)
NSa.dns.jp
NSb.dns.jp
NSc.dns.jp
NSd.dns.jp
NSe.dns.jp
NSf.dns.jp
NSg.dns.jp
NSh.dns.jp
TXTco.jp.
WOT: SAFE (58/100)

NS for

reason.co.jp

Up

mx.reason.co.jp

Same first word

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reason.town

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DNS History

8 records (5 active, 3 former)

20162017201820192020202120222023202420252026NSdnss10.so-net.ne.jpdnss11.so-net.ne.jpreason.co.jpMXmx.reason.co.jpreason.co.jpA153.122.205.21111.68.190.206211.13.196.142
●NSdnss10.so-net.ne.jp2015-06-27 → 2026-02-28 · 2 obs
● 2015-06-27 13:38:22
● 2026-02-28 12:12:16
●NSdnss11.so-net.ne.jp2015-06-27 → 2026-02-28 · 2 obs
● 2015-06-27 13:38:22
● 2026-02-28 12:12:16
●NSreason.co.jp2015-06-27 → 2026-02-28 · 2 obs
● 2015-06-27 13:38:22
● 2026-02-28 12:12:16
●MXmx.reason.co.jp2016-01-29 → 2026-02-28 · 3 obs
○ 2015-11-18 22:00:20
● 2016-01-29 16:17:56
● 2026-02-28 12:12:16
○MXreason.co.jp2015-06-27 → 2015-11-18 · 4 obs
● 2015-06-27 13:38:22
● 2015-11-18 22:00:20
○ 2016-01-29 16:17:56
○ 2026-02-28 12:12:16
○A111.68.190.2062015-06-27 → 2015-11-18 · 4 obs
● 2015-06-27 13:38:22
● 2015-11-18 22:00:20
○ 2016-01-29 16:17:56
○ 2026-02-28 12:12:16
●A153.122.205.212026-02-28 → 2026-02-28 · 3 obs
○ 2016-12-25 15:28:56
● 2026-02-28 12:12:14
● 2026-02-28 12:12:16
○A211.13.196.1422016-01-29 → 2016-12-25 · 5 obs
○ 2015-11-18 22:00:20
● 2016-01-29 16:17:56
● 2016-12-25 15:28:56
○ 2026-02-28 12:12:14
○ 2026-02-28 12:12:16

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
jpa.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp...15 records
reason.co.jpdnss11.so-net.ne.jp, dnss10.so-net.ne.jp-

✅ Authoritative Response

Server: 210.139.255.17

NS records: dnss11.so-net.ne.jp, dnss10.so-net.ne.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for reason.co.jp (unsigned zone)

⏱️ Timing

Total: 1782ms | Queries: -

📄 Records

TypeCountSample Data
A1153.122.205.21
NS2dnss10.so-net.ne.jp, dnss11.so-net.ne.jp
MX1mx.reason.co.jp (pri: 10)
TXT1v=spf1 include:_spf.shared-server.net +m
SOA1reason.co.jp hostmaster.reason.co.jp

📌 Glue Records Collected

Total: 15

In-bailiwick: 15 (a.dns.jp, b.dns.jp, c.dns.jp...)

AI analysis

reason.co.jp is a parent of mx.reason.co.jp.

reason.co.jp serves as a name server for reason.co.jp.

Commonly, dnss10.so-net.ne.jp and dnss11.so-net.ne.jp act as name servers along with reason.co.jp.

reason.co.jp points to a single IP address: 153.122.205.21.

Other host names such as hanazakka.com, enshu-truck.co.jp, sonnet-inc.co.jp, pal-s.com and sanai-fukushi.org share IP numbers with reason.co.jp.

reason.co.jp is delegated to three name servers: reason.co.jp, dnss10.so-net.ne.jp and dnss11.so-net.ne.jp.

At least part of the name servers for reason.co.jp are shared with other domains, for instance pals-net.co.jp, yu-sei.jp, mita-hanamo-florist.co.jp, arrows-tokyo.co.jp and u-kiko.com.

These name servers are often used together with jm-guard.co.jp, kachina.co.jp and takefive.co.jp.

Host names with a single IP:

reason.co.jp points to: 153.122.205.21

dnss10.so-net.ne.jp points to: 210.139.255.1

dnss11.so-net.ne.jp points to: 210.139.255.17

The mail server for reason.co.jp is mx.reason.co.jp.

Host mx.reason.co.jp points to IP 153.122.206.114.