umach.jp - robtex.com
umach.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 202.254.238.15🇯🇵 XSERVER-AS202.254.236.0/22 XSERVER Inc. | ||||||
| PTR | sv14.xbiz.ne.jp | ||||||
| NS | ns1.xbiz.ne.jp ⭐ | ||||||
| A | 157.112.182.247🇯🇵 XSERVER-AS157.112.176.0/21 XSERVER Inc. | ||||||
| PTR | ns1.xbiz.ne.jp | ||||||
| NS | ns2.xbiz.ne.jp | ||||||
| A | 35.76.79.244🇯🇵 Amazon35.72.0.0/13 EC2 NRT prefix | ||||||
| PTR | ns2.xbiz.ne.jp | ||||||
| NS | ns3.xbiz.ne.jp | ||||||
| A | 157.112.191.237🇯🇵 XSERVER-AS157.112.184.0/21 XSERVER Inc. | ||||||
| PTR | ns3.xbiz.ne.jp | ||||||
| MX | umach.jp ⭐ | ||||||
| A | 202.254.238.15🇯🇵 XSERVER-AS202.254.236.0/22 XSERVER Inc. | ||||||
| PTR | sv14.xbiz.ne.jp | ||||||
| TXT | v=spf1 +a:sv14.xbiz.ne.jp +a:umach.jp +mx include:spf.sender.xserver.jp ~all | ||||||
| SOA | ns1.xbiz.ne.jproot@xbiz.ne.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=1784086203 | ||||||
MX for
umach.jp |
Same first word
Similar names
DNS History
10 records (5 active, 5 former)
○NSns-1423.awsdns-49.org2018-05-12 → 2018-05-12 · 3 obs
○ 2026-06-27 02:18:12
○ 2026-07-15 03:42:10
○NSns-1847.awsdns-38.co.uk2018-05-12 → 2018-05-12 · 3 obs
○ 2026-06-27 02:18:12
○ 2026-07-15 03:42:10
○NSns-64.awsdns-08.com2018-05-12 → 2018-05-12 · 3 obs
○ 2026-06-27 02:18:12
○ 2026-07-15 03:42:10
○NSns-945.awsdns-54.net2018-05-12 → 2018-05-12 · 3 obs
○ 2026-06-27 02:18:12
○ 2026-07-15 03:42:10
●NSns1.xbiz.ne.jp2026-06-27 → 2026-07-15 · 3 obs
● 2026-06-27 02:18:12
● 2026-07-15 03:42:10
●NSns2.xbiz.ne.jp2026-06-27 → 2026-07-15 · 3 obs
● 2026-06-27 02:18:12
● 2026-07-15 03:42:10
●NSns3.xbiz.ne.jp2026-06-27 → 2026-07-15 · 3 obs
● 2026-06-27 02:18:12
● 2026-07-15 03:42:10
●MXumach.jp2018-05-12 → 2026-07-15 · 2 obs
● 2026-07-15 03:42:10
●A202.254.238.152026-06-27 → 2026-07-15 · 3 obs
● 2026-06-27 02:18:12
● 2026-07-15 03:42:10
○A52.192.74.2252018-05-12 → 2018-05-12 · 3 obs
○ 2026-06-27 02:18:12
○ 2026-07-15 03:42:10
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp... | - |
| umach.jp | ns2.xbiz.ne.jp, ns1.xbiz.ne.jp, ns3.xbiz.ne.jp | 3 records |
✅ Authoritative Response
Server:35.76.79.244
NS records: ns2.xbiz.ne.jp, ns1.xbiz.ne.jp, ns3.xbiz.ne.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for umach.jp (unsigned zone)
⏱️ Timing
Total: 1078ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 202.254.238.15 |
| NS | 3 | ns2.xbiz.ne.jp, ns1.xbiz.ne.jp... |
| MX | 1 | umach.jp (pri: 0) |
| TXT | 1 | v=spf1 +a:sv14.xbiz.ne.jp +a:umach.jp +m |
| SOA | 1 | ns1.xbiz.ne.jp root.xbiz.ne.jp |
📌 Glue Records Collected
Total: 3
Out-of-bailiwick: 3 (ns3.xbiz.ne.jp, ns2.xbiz.ne.jp, ns1.xbiz.ne.jp)
Analysis
Mail Server Role
The MX record for umach.jp points back to umach.jp — it is its own mail server.
IP Addresses
umach.jp directs to one IP number, which is 202.254.238.15.
Among the host names that share IP numbers with umach.jp are mail.otobako.com, dosureba.com, mail1.cyta.jp and two others.
Name Servers
The authoritative name servers for umach.jp are ns1.xbiz.ne.jp, ns2.xbiz.ne.jp and ns3.xbiz.ne.jp — three in total.
There is at least partial name server overlap between umach.jp and other domains — nulink.co.jp, wacloth.com, hirohashi-heartful.com and two more among them.
The hostnames ns1.xbiz.ne.jp, ns2.xbiz.ne.jp and ns3.xbiz.ne.jp each resolve to a single IP: ns1.xbiz.ne.jp → 157.112.182.247, ns2.xbiz.ne.jp → 35.76.79.244, ns3.xbiz.ne.jp → 157.112.191.237.
Mail Servers
The MX record for umach.jp points to a single mail server: umach.jp.
umach.jp directs to just one IP number, 202.254.238.15.