hirobi.ac.jp - robtex.com
hirobi.ac.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 182.236.42.52🇯🇵 FBDC182.236.42.0/24 FreeBit CIDR X-Keiro:nic-noc@FreeBit.NET | ||||||
| PTR | 52.42.236.182.west.global.crust-r.net | ||||||
| NS | dns.hirobi.ac.jp ⭐ | ||||||
| A | 182.236.42.50🇯🇵 FBDC182.236.42.0/24 FreeBit CIDR X-Keiro:nic-noc@FreeBit.NET | ||||||
| PTR | 50.42.236.182.west.global.crust-r.net | ||||||
| NS | dns.hsc.ac.jp | ||||||
| A | 182.236.42.50🇯🇵 FBDC182.236.42.0/24 FreeBit CIDR X-Keiro:nic-noc@FreeBit.NET | ||||||
| PTR | 50.42.236.182.west.global.crust-r.net | ||||||
| MX | mail1.ucs-hiroshima.ac.jp ⭐ | ||||||
| A | 182.236.42.50🇯🇵 FBDC182.236.42.0/24 FreeBit CIDR X-Keiro:nic-noc@FreeBit.NET | ||||||
| PTR | 50.42.236.182.west.global.crust-r.net | ||||||
| MX | mail.ucs-hiroshima.ac.jp(20) | ||||||
| A | 116.58.190.48🇯🇵 InfoSphere116.58.160.0/19 INTERLINK | ||||||
| PTR | mail.ucs-hiroshima.ac.jp | ||||||
| TXT | v=spf1 ip4:182.236.42.48/28 ~all | ||||||
| SOA | dns.hirobi.ac.jppostmaster@hirobi.ac.jp 2017-08-05 #8 | ||||||
ac.jp
| DNSSEC | ⚠️ Not signed | ||||||
| TXT | ac.jp. | ||||||
WOT: SAFE (80/100)
Subdomains
dns.hirobi.ac.jp |
Same first word
Similar names
DNS History
6 records (5 active, 1 former)
●NSdns.hirobi.ac.jp2015-07-05 → 2026-05-10 · 2 obs
● 2026-05-10 11:15:32
●MXmail.ucs-hiroshima.ac.jp2015-07-05 → 2026-05-10 · 2 obs
● 2026-05-10 11:15:32
●MXmail1.ucs-hiroshima.ac.jp2015-07-05 → 2026-05-10 · 2 obs
● 2026-05-10 11:15:32
●A182.236.42.522026-02-18 → 2026-05-10 · 3 obs
● 2026-02-18 07:33:34
● 2026-05-10 11:15:32
○A221.250.133.2332015-07-05 → 2017-03-28 · 4 obs
● 2017-03-28 04:45:36
○ 2026-02-18 07:33:34
○ 2026-05-10 11:15:32
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | g.dns.jp, d.dns.jp, c.dns.jp, a.dns.jp... | - |
| hirobi.ac.jp | dns.hsc.ac.jp, dns.hirobi.ac.jp | 4 records |
✅ Authoritative Response
Server:114.164.236.210
NS records: dns.hsc.ac.jp, dns.hirobi.ac.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for hirobi.ac.jp (unsigned zone)
⏱️ Timing
Total: 748ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 182.236.42.52 |
| NS | 2 | dns.hsc.ac.jp, dns.hirobi.ac.jp |
| MX | 2 | mail.ucs-hiroshima.ac.jp (pri: 10), mail1.ucs-hiroshima.ac.jp (pri: 20) |
| TXT | 1 | v=spf1 ip4:182.236.42.48/28 ~all |
| SOA | 1 | dns.hirobi.ac.jp postmaster.hirobi.ac.jp |
📌 Glue Records Collected
Total: 4
In-bailiwick: 2 (dns.hirobi.ac.jp, dns.hirobi.ac.jp)
Out-of-bailiwick: 2 (dns.hsc.ac.jp, dns.hsc.ac.jp)
Analysis
Hierarchy
The parent of dns.hirobi.ac.jp is hirobi.ac.jp.
IP Addresses
hirobi.ac.jp points to an IP address: 182.236.42.52.
Other host names, for instance 52.42.236.182.west.global.crust-r.net, share IP numbers with hirobi.ac.jp.
Name Servers
Two name servers dns.hirobi.ac.jp and dns.hsc.ac.jp handle the delegation for hirobi.ac.jp.
hirobi.ac.jp at least partially shares name servers with other domains, for instance hsc.ac.jp, hjb.ac.jp, uhk.ac.jp, kaikei.ac.jp and ucsdoso.jp.
These name servers are commonly used with the name servers dns.ucs-hiroshima.ac.jp, dns.hjb.ac.jp, dns.uhk.ac.jp, dns.kaikei.ac.jp, dns.ucsdoso.jp, dns.gaigo.ac.jp, dns.biyo.ac.jp and dns.hscdoso.jp.
Host names with a single IP
dns.hirobi.ac.jp points to 182.236.42.50
dns.hsc.ac.jp points to 182.236.42.50
Host names that point to 182.236.42.50: dns.hirobi.ac.jp and dns.hsc.ac.jp
Mail Servers
hirobi.ac.jp is handled by two mail servers: mail1.ucs-hiroshima.ac.jp and mail.ucs-hiroshima.ac.jp.
hirobi.ac.jp uses the same mail server setup as other domains, for instance uhk.ac.jp, kaikei.ac.jp, gaigo.ac.jp, biyo.ac.jp and ucs-hiroshima.ac.jp.
hirobi.ac.jp shares some mail servers with other domains, including dns.hsc.ac.jp, dns.gaigo.ac.jp, mail.ucs-hiroshima.ac.jp and dns.hirobi.ac.jp.
Host names with one IP:
mail1.ucs-hiroshima.ac.jp points to: 182.236.42.50
mail.ucs-hiroshima.ac.jp points to: 116.58.190.48