sysd.co.jp - robtex.com
sysd.co.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 210.190.146.199🇯🇵 OCN210.190.0.0/16 (AS4713) CIDR BLOCK 20 NTT Communications Corporation 1-1-6 Uchisaiwai-cho, Chiyoda-ku Tokyo 100-8019 JAPAN | ||||||
| PTR | sysd.co.jp | ||||||
| NS | mwns1.customer.ne.jp ⭐ | ||||||
| A | 210.150.23.210🇯🇵 InfoSphere210.150.0.0/16 INFOSPHERE | ||||||
| NS | mwns2.customer.ne.jp | ||||||
| A | 202.17.152.183🇯🇵 InfoSphere202.17.128.0/19 INFOSPHERE | ||||||
| MX | sysd.co.jp ⭐ | ||||||
| A | 210.190.146.199🇯🇵 OCN210.190.0.0/16 (AS4713) CIDR BLOCK 20 NTT Communications Corporation 1-1-6 Uchisaiwai-cho, Chiyoda-ku Tokyo 100-8019 JAPAN | ||||||
| PTR | sysd.co.jp | ||||||
| TXT | v=spf1 a include:_spf.bizmw.com ~all | ||||||
| SOA | mwns1.customer.ne.jphost-plan-ac@ntt.com serial=1613866912 | ||||||
co.jp
| DNSSEC | ⚠️ Not signed | ||||||
| TXT | co.jp. | ||||||
PTR for
MX for
sysd.co.jp |
Same first word
sysd.cn |
sysd.com.cn |
sysd.services |
sysd.eu |
sysd.com |
sysd.co |
sysd.net |
sysd.es |
sysd.de |
sysd.org |
sysd.ro |
sysd.be |
sysd.co.jp |
sysd.k12.ca.us |
Similar names
DNS History
10 records (4 active, 6 former)
●NSmwns1.customer.ne.jp2026-07-17 → 2026-07-26 · 3 obs
● 2026-07-17 13:15:22
● 2026-07-26 22:48:08
●NSmwns2.customer.ne.jp2026-07-17 → 2026-07-26 · 3 obs
● 2026-07-17 13:15:22
● 2026-07-26 22:48:08
○NSns-213.dns.jp-e1.cloudn-service.com2016-01-22 → 2019-03-17 · 5 obs
● 2016-01-22 08:06:24
● 2019-03-17 20:06:52
○ 2026-07-17 13:15:22
○ 2026-07-26 22:48:08
○NSns-214.dns.jp-w1.cloudn-service.com2016-01-22 → 2019-03-17 · 5 obs
● 2016-01-22 08:06:24
● 2019-03-17 20:06:52
○ 2026-07-17 13:15:22
○ 2026-07-26 22:48:08
○NSns-215.dns.us-e1.cloudn-service.com2016-01-22 → 2019-03-17 · 5 obs
● 2016-01-22 08:06:24
● 2019-03-17 20:06:52
○ 2026-07-17 13:15:22
○ 2026-07-26 22:48:08
○NSns1.secure.net2015-06-25 → 2015-11-04 · 4 obs
● 2015-11-04 09:13:18
○ 2016-01-22 08:06:24
○ 2026-07-26 22:48:08
○NSns2.secure.net2015-06-25 → 2015-11-04 · 4 obs
● 2015-11-04 09:13:18
○ 2016-01-22 08:06:24
○ 2026-07-26 22:48:08
●MXsysd.co.jp2015-06-25 → 2026-07-26 · 2 obs
● 2026-07-26 22:48:08
●A210.190.146.1992026-07-17 → 2026-07-26 · 3 obs
● 2026-07-17 13:15:22
● 2026-07-26 22:48:08
○A211.129.0.1842015-06-25 → 2019-03-17 · 4 obs
● 2019-03-17 20:06:52
○ 2026-07-17 13:15:22
○ 2026-07-26 22:48:08
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | e.dns.jp, b.dns.jp, c.dns.jp, a.dns.jp... | - |
| sysd.co.jp | mwns1.customer.ne.jp, mwns2.customer.ne.jp | - |
✅ Authoritative Response
Server:210.150.23.210
NS records: mwns1.customer.ne.jp, mwns2.customer.ne.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sysd.co.jp (unsigned zone)
⏱️ Timing
Total: 3115ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 210.190.146.199 |
| NS | 2 | mwns1.customer.ne.jp, mwns2.customer.ne.jp |
| MX | 1 | sysd.co.jp (pri: 10) |
| TXT | 1 | v=spf1 a include:_spf.bizmw.com ~all |
| SOA | 1 | mwns1.customer.ne.jp host-plan-ac.ntt.co |
Analysis
Mail Server Role
sysd.co.jp acts as its own mail server.
IP Addresses
sysd.co.jp points to a single IP number: 210.190.146.199.
Name Servers
sysd.co.jp has two authoritative name servers — mwns1.customer.ne.jp and mwns2.customer.ne.jp.
sysd.co.jp shares its name server setup with other domains, including pre-pro.co.jp, hattori-seikei.dr-clinic.jp, c-glex.co.jp and two others.
mwns1.customer.ne.jp → 210.150.23.210 and mwns2.customer.ne.jp → 202.17.152.183: one IP number per host name.
Mail Servers
sysd.co.jp has a single mail server: sysd.co.jp itself.
sysd.co.jp points to one IP number — 210.190.146.199.