umin.org - dns.ninja
umin.org
| DNSSEC | ⚠️ Not signed | ||||||
| A | 130.69.92.55🇯🇵 U-TOKYO130.69.0.0/16 The University of Tokyo Hongo 7-3-1, Bunkyo Tokyo 113, JAPAN | ||||||
| PTR | sslpop.umin.org | ||||||
| NS | db.umin.ac.jp ⭐ | ||||||
| A | 130.69.92.11🇯🇵 U-TOKYO130.69.0.0/16 The University of Tokyo Hongo 7-3-1, Bunkyo Tokyo 113, JAPAN | ||||||
| PTR | db.umin.ac.jp | ||||||
| NS | ilsa.umin.ac.jp | ||||||
| A | 130.69.92.50🇯🇵 U-TOKYO130.69.0.0/16 The University of Tokyo Hongo 7-3-1, Bunkyo Tokyo 113, JAPAN | ||||||
| PTR | ilsa.umin.ac.jp | ||||||
| MX | mailgw.umin.ac.jp ⭐ | ||||||
| A | 130.69.92.22🇯🇵 U-TOKYO130.69.0.0/16 The University of Tokyo Hongo 7-3-1, Bunkyo Tokyo 113, JAPAN | ||||||
| PTR | mailgw.umin.ac.jp | ||||||
| TXT | v=spf1 +ip4:130.69.92.0/24 +ip4:130.69.94.0/24 ~all | ||||||
| SOA | db.umin.ac.jppostmast-ctr@umin.ac.jp 2021-12-30 #0 | ||||||
org
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.org.afilias-nst.info ⭐ ⚠️ Not in parent delegation | ||||||
| NS | a2.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | b0.org.afilias-nst.org | ||||||
| NS | b2.org.afilias-nst.org | ||||||
| NS | c0.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | d0.org.afilias-nst.org | ||||||
| SOA | a0.org.afilias-nst.infohostmaster@donuts.email serial=1785515303 | ||||||
Subdomains
Same first word
umin.mx |
umin.net |
umin.tv |
umin.ne.jp |
umin.jp |
umin.ac.jp |
umin.us |
umin.edu.ph |
umin.biz |
umin.org |
umin.ir |
umin.com |
umin.de |
umin.info |
Similar names
DNS History
5 records (4 active, 1 former)
●NSdb.umin.ac.jp2015-04-25 → 2026-07-31 · 2 obs
● 2026-07-31 16:48:06
●NSilsa.umin.ac.jp2015-04-25 → 2026-07-31 · 2 obs
● 2026-07-31 16:48:06
●MXmailgw.umin.ac.jp2026-02-17 → 2026-07-31 · 3 obs
● 2026-02-17 16:13:10
● 2026-07-31 16:48:06
○MXmailgw.umin.org2015-04-25 → 2019-10-21 · 4 obs
● 2019-10-21 00:36:28
○ 2026-02-17 16:13:10
○ 2026-07-31 16:48:06
●A130.69.92.552015-04-25 → 2026-07-31 · 2 obs
● 2026-07-31 16:48:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org | - |
| umin.org | ilsa.umin.ac.jp, db.umin.ac.jp | - |
✅ Authoritative Response
Server:130.69.92.11
NS records: ilsa.umin.ac.jp, db.umin.ac.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for umin.org (unsigned zone)
⏱️ Timing
Total: 1030ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 130.69.92.55 |
| NS | 2 | db.umin.ac.jp, ilsa.umin.ac.jp |
| MX | 1 | mailgw.umin.ac.jp (pri: 10) |
| TXT | 1 | v=spf1 +ip4:130.69.92.0/24 +ip4:130.69.9 |
| SOA | 1 | db.umin.ac.jp postmast-ctr.umin.ac.jp |
Analysis
Hierarchy
umin.org serves as the parent of sslpop.umin.org and mailgw.umin.org.
IP Addresses
umin.org has exactly one IP address — 130.69.92.55.
sslpop.umin.org is an example of another host name that shares IP numbers with umin.org.
Name Servers
umin.org has two authoritative name servers — db.umin.ac.jp and ilsa.umin.ac.jp.
The name server configuration of umin.org is shared with other domains, for instance 94.69.130.in-addr.arpa, umin.net, 92.69.130.in-addr.arpa and two others.
At least some of umin.org's name servers are shared with other domains, for example medicalmarketing.jp, jocd.org, skincancer.jp and two more.
These name servers tend to be used in conjunction with the name servers ns.umin.ac.jp.
Each of db.umin.ac.jp and ilsa.umin.ac.jp has one IP address: db.umin.ac.jp uses 130.69.92.11 and ilsa.umin.ac.jp uses 130.69.92.50.
Mail Servers
umin.org uses one mail server — mailgw.umin.ac.jp.
The mail server setup of umin.org is identical to that of domains like umin.net, umin.jp and umin.ac.jp.
mailgw.umin.ac.jp points to one IP number — 130.69.92.22.