chubusystem.jp - robtex.com
chubusystem.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 202.226.39.177🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc. | ||||||
| PTR | sv337.xserver.jp | ||||||
| NS | ns1.xserver.jp ⭐ | ||||||
| A | 202.226.36.164🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc. | ||||||
| A | 202.226.36.170🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc. | ||||||
| A | 202.226.36.246🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc. | ||||||
| PTR | ns1.xserver.jp | ||||||
| NS | ns2.xserver.jp | ||||||
| A | 35.72.43.26🇯🇵 Amazon35.72.0.0/13 EC2 NRT prefix | ||||||
| PTR | ns2.xserver.jp | ||||||
| NS | ns3.xserver.jp | ||||||
| A | 202.226.36.247🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc. | ||||||
| PTR | ns3.xserver.jp | ||||||
| NS | ns4.xserver.jp | ||||||
| A | 183.90.224.226🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc. | ||||||
| A | 183.90.224.230🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc. | ||||||
| A | 202.226.39.247🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc. | ||||||
| PTR | ns4.xserver.jp | ||||||
| NS | ns5.xserver.jp | ||||||
| A | 157.112.182.218🇯🇵 XSERVER-AS157.112.176.0/21 XSERVER Inc. | ||||||
| A | 157.112.182.220🇯🇵 XSERVER-AS157.112.176.0/21 XSERVER Inc. | ||||||
| A | 202.226.37.247🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc. | ||||||
| PTR | ns5.xserver.jp | ||||||
| MX | chubusystem.jp ⭐ | ||||||
| A | 202.226.39.177🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc. | ||||||
| PTR | sv337.xserver.jp | ||||||
| TXT | v8wnqxf816v884f3909n7n2s3mf1r4j8 | ||||||
| TXT | google-site-verification=tyA9KnMqVTGsz0CzqqlEiPdqXLGv0LJ9Cxvfoe97ekQ | ||||||
| TXT | nxltw2znx668xxcmvqjds40z4bv5xnxl | ||||||
| TXT | v=spf1 +a:sv337.xserver.jp +a:chubusystem.jp +mx include:spf.sender.xserver.j... | ||||||
| TXT | MS=65206F692FAE17FA5167743611DF60A997C52E32 | ||||||
| TXT | 7591xw181c0w5g58jb3ccqkhc3dxd0f9 | ||||||
| TXT | worksmobile-certification=pawl0dhxwiv4swvwxf-i37y4r2brnafjn-2tjxgdbcp | ||||||
| SOA | ns1.xserver.jproot@sv0.xserver.jp serial=0 | ||||||
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=1784891702 | ||||||
MX for
chubusystem.jp |
Subdomains
www.chubusystem.jp |
Same first word
chubusystem.jp |
DNS History
8 records (7 active, 1 former)
●NSns1.xserver.jp2015-05-21 → 2026-07-24 · 2 obs
● 2026-07-24 11:59:44
●NSns2.xserver.jp2015-05-21 → 2026-07-24 · 2 obs
● 2026-07-24 11:59:44
●NSns3.xserver.jp2015-05-21 → 2026-07-24 · 2 obs
● 2026-07-24 11:59:44
●NSns4.xserver.jp2015-05-21 → 2026-07-24 · 2 obs
● 2026-07-24 11:59:44
●NSns5.xserver.jp2015-05-21 → 2026-07-24 · 2 obs
● 2026-07-24 11:59:44
●MXchubusystem.jp2015-05-21 → 2026-07-24 · 2 obs
● 2026-07-24 11:59:44
●A202.226.39.1772026-03-05 → 2026-07-24 · 3 obs
● 2026-03-05 17:53:08
● 2026-07-24 11:59:44
○A219.94.203.1772015-05-21 → 2017-07-03 · 4 obs
● 2017-07-03 13:27:42
○ 2026-03-05 17:53:08
○ 2026-07-24 11:59:44
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | b.dns.jp, h.dns.jp, d.dns.jp, e.dns.jp... | - |
| chubusystem.jp | ns2.xserver.jp, ns5.xserver.jp, ns3.xserver.jp, ns1.xserver.jp... | 11 records |
✅ Authoritative Response
Server:202.226.36.164
NS records: ns2.xserver.jp, ns5.xserver.jp, ns3.xserver.jp, ns1.xserver.jp, ns4.xserver.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for chubusystem.jp (unsigned zone)
⏱️ Timing
Total: 818ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 202.226.39.177 |
| NS | 5 | ns2.xserver.jp, ns3.xserver.jp... |
| MX | 1 | chubusystem.jp (pri: 0) |
| TXT | 7 | nxltw2znx668xxcmvqjds40z4bv5xnxl, 7591xw181c0w5g58jb3ccqkhc3dxd0f9... |
| SOA | 1 | ns1.xserver.jp root.sv0.xserver.jp |
📌 Glue Records Collected
Total: 11
Out-of-bailiwick: 11 (ns5.xserver.jp, ns5.xserver.jp, ns5.xserver.jp...)
Analysis
Hierarchy
www.chubusystem.jp is delegated beneath chubusystem.jp.
Mail Server Role
The MX record for chubusystem.jp points back to chubusystem.jp — it is its own mail server.
IP Addresses
chubusystem.jp directs to one IP number, which is 202.226.39.177.
Among the host names that share IP numbers with chubusystem.jp are flec.jp, hteletec.co.jp, g-housen.co.jp and two others.
Name Servers
The authoritative name servers for chubusystem.jp are ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp and two others.
There is at least partial name server overlap between chubusystem.jp and other domains — mituko.jp, seisakusho.jp, skycorp.co.jp and two more among them.
These name servers frequently co-occur with the name servers ns4.xserver.jp and ns5.xserver.jp.
Hosts with three IP address records:
ns1.xserver.jp resolves to 202.226.36.164, 202.226.36.170 and 202.226.36.246.
ns4.xserver.jp resolves to 183.90.224.226, 183.90.224.230 and 202.226.39.247.
ns5.xserver.jp resolves to 157.112.182.218, 157.112.182.220 and 202.226.37.247.
Hosts that resolve to one IP address:
ns2.xserver.jp resolves to 35.72.43.26.
ns3.xserver.jp resolves to 202.226.36.247.
Mail Servers
The MX record for chubusystem.jp points to a single mail server: chubusystem.jp.
chubusystem.jp points to one IP number — 202.226.39.177.