umin.net - robtex.com
umin.net
| DNSSEC | ⚠️ Not signed | ||||||
| A | 130.69.92.70🇯🇵 U-TOKYO130.69.0.0/16 The University of Tokyo Hongo 7-3-1, Bunkyo Tokyo 113, JAPAN | ||||||
| PTR | sslpop.umin.net | ||||||
| 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 2021-12-29 #1 | ||||||
net
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1777672276 | ||||||
Subdomains
Same first word
umin.edu.ph |
umin.biz |
umin.org |
umin.ir |
umin.com |
umin.de |
umin.info |
umin.mx |
umin.net |
umin.tv |
umin.ne.jp |
umin.jp |
umin.ac.jp |
umin.us |
Similar names
DNS History
5 records (4 active, 1 former)
●NSdb.umin.ac.jp2015-08-07 → 2026-05-01 · 2 obs
● 2026-05-01 22:07:24
●NSilsa.umin.ac.jp2015-08-07 → 2026-05-01 · 2 obs
● 2026-05-01 22:07:24
●MXmailgw.umin.ac.jp2026-02-23 → 2026-05-01 · 3 obs
● 2026-02-23 21:52:56
● 2026-05-01 22:07:24
○MXmailgw.umin.net2015-08-07 → 2021-09-24 · 4 obs
● 2021-09-24 08:31:52
○ 2026-02-23 21:52:56
○ 2026-05-01 22:07:24
●A130.69.92.702015-08-07 → 2026-05-01 · 2 obs
● 2026-05-01 22:07:24
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| net | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| umin.net | ilsa.umin.ac.jp, db.umin.ac.jp | - |
✅ Authoritative Response
Server:130.69.92.50
NS records: ilsa.umin.ac.jp, db.umin.ac.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for umin.net (unsigned zone)
⏱️ Timing
Total: 957ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 130.69.92.70 |
| 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.net is parent of sslpop.umin.net, sslsmtp.umin.net, smtp.umin.net and mailgw.umin.net.
IP Addresses
umin.net points to a single IP address: 130.69.92.70.
Other host names, for instance sslpop.umin.net, share IP numbers with umin.net.
Name Servers
umin.net is delegated to two name servers: db.umin.ac.jp and ilsa.umin.ac.jp.
umin.net uses the same name server setup as other domains, including umin.ne.jp, umin.jp, umin.ac.jp, univ-hosp.net and umin.org.
At least part of the name servers for umin.net are shared with other domains, for instance skincancer.jp, www.u-tokyo-ortho.jp, afsumb.org, www.pfdb.net and u-tokyo-ortho.jp.
These name servers are commonly used alongside the name servers ns.umin.ac.jp.
Hostnames with a single IP
db.umin.ac.jp resolves to: 130.69.92.11.
ilsa.umin.ac.jp resolves to: 130.69.92.50.
Mail Servers
The mail server for umin.net is mailgw.umin.ac.jp.
umin.net uses the same mail server setup as other domains, for example umin.ac.jp, umin.org and umin.jp.
Host mailgw.umin.ac.jp points to IP 130.69.92.22.