hokutetsu.com - robtex.com
hokutetsu.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 140.227.103.79🇯🇵 InfoSphere140.227.0.0/16 INFOSPHERE | ||||||
| PTR | hokutetsu.com | ||||||
| NS | ns3.sphere.ad.jp ⭐ | ||||||
| A | 202.239.113.22🇯🇵 InfoSphere202.239.64.0/18 INFOSPHERE | ||||||
| PTR | ns3.sphere.ad.jp | ||||||
| NS | ns4.sphere.ad.jp | ||||||
| A | 202.239.113.30🇯🇵 InfoSphere202.239.64.0/18 INFOSPHERE | ||||||
| PTR | ns4.sphere.ad.jp | ||||||
| MX | hokutetsu.com ⭐ | ||||||
| A | 140.227.103.79🇯🇵 InfoSphere140.227.0.0/16 INFOSPHERE | ||||||
| PTR | hokutetsu.com | ||||||
| TXT | v=spf1 include:fmx.etius.jp +ip4:140.227.102.2/32 +ip4:140.227.103.79/32 -all | ||||||
| SOA | ns3.sphere.ad.jpdns@sphere.ad.jp serial=1614928609 | ||||||
com
| 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=1784108037 | ||||||
PTR for
MX for
hokutetsu.com |
Same first word
hokutetsu.co.jp |
hokutetsu.com |
DNS History
8 records (4 active, 4 former)
●NSns3.sphere.ad.jp2026-07-15 → 2026-07-15 · 3 obs
● 2026-07-15 09:56:52
● 2026-07-15 09:56:54
●NSns4.sphere.ad.jp2026-07-15 → 2026-07-15 · 3 obs
● 2026-07-15 09:56:52
● 2026-07-15 09:56:54
○NSns5.sphere.ad.jp2015-06-08 → 2018-01-15 · 4 obs
● 2018-01-15 02:48:12
○ 2026-07-15 09:56:52
○ 2026-07-15 09:56:54
○NSns6.sphere.ad.jp2015-06-08 → 2018-01-15 · 4 obs
● 2018-01-15 02:48:12
○ 2026-07-15 09:56:52
○ 2026-07-15 09:56:54
○MXa.mx.hokutetsu.com2015-06-08 → 2018-01-15 · 4 obs
● 2018-01-15 02:48:12
○ 2026-07-15 09:56:52
○ 2026-07-15 09:56:54
●MXhokutetsu.com2026-07-15 → 2026-07-15 · 3 obs
● 2026-07-15 09:56:52
● 2026-07-15 09:56:54
●A140.227.103.792026-07-15 → 2026-07-15 · 3 obs
● 2026-07-15 09:56:52
● 2026-07-15 09:56:54
○A210.136.8.882015-06-08 → 2018-01-15 · 4 obs
● 2018-01-15 02:48:12
○ 2026-07-15 09:56:52
○ 2026-07-15 09:56:54
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | e.gtld-servers.net, a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net... | - |
| hokutetsu.com | ns3.sphere.ad.jp, ns4.sphere.ad.jp | - |
✅ Authoritative Response
Server:202.239.113.22
NS records: ns3.sphere.ad.jp, ns4.sphere.ad.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for hokutetsu.com (unsigned zone)
⏱️ Timing
Total: 1493ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 140.227.103.79 |
| NS | 2 | ns4.sphere.ad.jp, ns3.sphere.ad.jp |
| MX | 1 | hokutetsu.com (pri: 10) |
| TXT | 1 | v=spf1 include:fmx.etius.jp +ip4:140.227 |
| SOA | 1 | ns3.sphere.ad.jp dns.sphere.ad.jp |
Analysis
Mail Server Role
hokutetsu.com is listed as a mail server for itself.
IP Addresses
hokutetsu.com resolves to one IP address: 140.227.103.79.
Name Servers
The NS records for hokutetsu.com delegate to ns3.sphere.ad.jp and ns4.sphere.ad.jp.
hokutetsu.com uses the same name servers as several other domains — among them kondosk.co.jp, gavbtto.com, 98.136.210.in-addr.arpa and two more.
hokutetsu.com and other domains like iforce.tv share at least a portion of their name servers.
ns3.sphere.ad.jp resolves to 202.239.113.22. ns4.sphere.ad.jp resolves to 202.239.113.30. Both host names point to a single IP number.
Mail Servers
Mail for hokutetsu.com is handled by one mail server — hokutetsu.com.
hokutetsu.com resolves to 140.227.103.79 and no other IP number.