system9.co.jp - robtex.com

system9.co.jp

DNSSEC⚠️ Not signed
A49.212.200.169🇯🇵 SAKURA-C49.212.0.0/16 (7/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan
PTRwww25155ue.sakura.ne.jp
NSns1.do-reg.jp ⭐
A203.183.220.201🇯🇵 IDC203.183.192.0/18 Frontier Inc.
NSns2.do-reg.jp
A203.137.197.45🇯🇵 IDC203.137.192.0/18 Frontier Inc.
PTR203-137-197-45.monstera.jp-west.compute.idcfcloud.net
MXsystem9-co-jp.mail.protection.outlook.com ⭐
A2a01:111:f403:cc1a::🇯🇵 Microsoft2a01:111:f000::/36
PTRmail-tycp286cu02600.inbound.protection.outlook.com
A2a01:111:f403:cc1a::2🇯🇵 Microsoft2a01:111:f000::/36
PTRmail-tyvp286cu00302.inbound.protection.outlook.com
A2a01:111:f403:cc1f::1🇯🇵 Microsoft2a01:111:f000::/36
PTRmail-os0p286cu01201.inbound.protection.outlook.com
A2a01:111:f403:cc24::🇯🇵 Microsoft2a01:111:f000::/36
PTRmail-os0p286cu01300.inbound.protection.outlook.com
A52.101.124.0🇯🇵 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-tycp286cu02600.inbound.protection.outlook.com
A52.101.124.1🇯🇵 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-ty3p286cu00101.inbound.protection.outlook.com
A52.101.157.11🇺🇸 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-os0p286cu01203.inbound.protection.outlook.com
A52.101.157.40🇺🇸 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-os9p286cu00100.inbound.protection.outlook.com
TXTv=spf1 include:spf.protection.outlook.com ~all
TXTMS=ms42591253
TXTgoogle-site-verification=mdYM18NWEyDweviIsbv7dbKtYCizeq4vQEXkPwlb6eM
SOANS1.DO-REG.JPpostmaster@system9.co.jp 2026-01-31 #2

co.jp

DNSSEC⚠️ Not signed
TXTco.jp.
WOT: SAFE (58/100)

Same first word

system9.io
system9.com
system9.co.jp
system9.org

Similar names

9system.org
9system.com

DNS History

5 records (4 active, 1 former)

20162017201820192020202120222023202420252026NSns1.do-reg.jpns2.do-reg.jpMXsystem9-co-jp.mail.protection.outlook.commail.system9.co.jpA49.212.200.169
●NSns1.do-reg.jp2015-08-04 → 2026-07-25 · 2 obs
● 2015-08-04 18:08:40
● 2026-07-25 02:16:52
●NSns2.do-reg.jp2015-08-04 → 2026-07-25 · 2 obs
● 2015-08-04 18:08:40
● 2026-07-25 02:16:52
○MXmail.system9.co.jp2015-08-04 → 2017-11-20 · 4 obs
● 2015-08-04 18:08:40
● 2017-11-20 16:14:12
○ 2026-06-25 14:54:56
○ 2026-07-25 02:16:52
●MXsystem9-co-jp.mail.protection.outlook.com2026-06-25 → 2026-07-25 · 3 obs
○ 2017-11-20 16:14:12
● 2026-06-25 14:54:56
● 2026-07-25 02:16:52
●A49.212.200.1692015-08-04 → 2026-07-25 · 2 obs
● 2015-08-04 18:08:40
● 2026-07-25 02:16:52

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
jpe.dns.jp, g.dns.jp, c.dns.jp, a.dns.jp...-
system9.co.jpns1.do-reg.jp, ns2.do-reg.jp2 records

✅ Authoritative Response

Server:203.137.197.45

NS records: ns1.do-reg.jp, ns2.do-reg.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for system9.co.jp (unsigned zone)

⏱️ Timing

Total: 950ms | Queries: -

📄 Records

TypeCountSample Data
A149.212.200.169
NS2NS1.DO-REG.JP, NS2.DO-REG.JP
MX1system9-co-jp.mail.protection.outlook.co
TXT3MS=ms42591253, v=spf1 +ip4:49.212.200.169 include:spf.p...
SOA1NS1.DO-REG.JP postmaster.system9.co.jp

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1.do-reg.jp, ns2.do-reg.jp)

Analysis

IP Addresses

system9.co.jp resolves to one IP address: 49.212.200.169.

Additional host names — including mail.0986.jp and www25155ue.sakura.ne.jp — share IP numbers with system9.co.jp.

Name Servers

system9.co.jp is served by two delegated name servers, ns1.do-reg.jp and ns2.do-reg.jp.

system9.co.jp uses the same name servers as several other domains — among them 113.46.164.in-addr.arpa, danart.co.jp, volubeit.net and two more.

The DNS delegation for system9.co.jp at least partly coincides with that of other domains, sojitz-fashion.com being one example.

ns1.do-reg.jp directs to 203.183.220.201 and ns2.do-reg.jp directs to 203.137.197.45; each host name points to exactly one IP number.

Mail Servers

Mail for system9.co.jp is handled by a single mail server, system9-co-jp.mail.protection.outlook.com.

system9-co-jp.mail.protection.outlook.com resolves to 8 IP addresses — 52.101.124.0, 52.101.124.1, 52.101.157.11 and 5 others.