fortcluster.jp - robtex.com
fortcluster.jp
| DNSSEC | ⚠️ Not signed | ||||||
| NS | dns1.fortcluster.jp ⭐ ⚠️ Not in parent delegation | ||||||
| A | 157.120.112.239🇯🇵 GMOHS-CL157.120.112.0/24 GMO GlobalSign Holdings K.K. | ||||||
| A | 157.120.113.239🇯🇵 GMOHS-CL157.120.113.0/24 GMO GlobalSign Holdings K.K. | ||||||
| A | 157.120.114.239🇯🇵 GMOHS-CL157.120.114.0/24 GMO GlobalSign Holdings K.K. | ||||||
| NS | dns2.fortcluster.jp ⚠️ Not in parent delegation | ||||||
| A | 157.120.112.239🇯🇵 GMOHS-CL157.120.112.0/24 GMO GlobalSign Holdings K.K. | ||||||
| A | 157.120.113.239🇯🇵 GMOHS-CL157.120.113.0/24 GMO GlobalSign Holdings K.K. | ||||||
| A | 157.120.114.239🇯🇵 GMOHS-CL157.120.114.0/24 GMO GlobalSign Holdings K.K. | ||||||
| NS | ns.namedserver.net ⚠️ Not in zone NS records | ||||||
| A | 157.120.112.212🇯🇵 GMOHS-CL157.120.112.0/24 GMO GlobalSign Holdings K.K. | ||||||
| A | 157.120.113.212🇯🇵 GMOHS-CL157.120.113.0/24 GMO GlobalSign Holdings K.K. | ||||||
| A | 157.120.114.212🇯🇵 GMOHS-CL157.120.114.0/24 GMO GlobalSign Holdings K.K. | ||||||
| NS | ns2.namedserver.net ⚠️ Not in zone NS records | ||||||
| A | 157.120.112.212🇯🇵 GMOHS-CL157.120.112.0/24 GMO GlobalSign Holdings K.K. | ||||||
| A | 157.120.113.212🇯🇵 GMOHS-CL157.120.113.0/24 GMO GlobalSign Holdings K.K. | ||||||
| A | 157.120.114.212🇯🇵 GMOHS-CL157.120.114.0/24 GMO GlobalSign Holdings K.K. | ||||||
| MX | mx.blue.shared-server.net ⭐ | ||||||
| A | 153.122.206.94🇯🇵 AS131921153.122.192.0/20 GMO CLOUD K.K. GMO GlobalSign Holdings K.K. | ||||||
| MX | mx.red.shared-server.net ⭐ | ||||||
| A | 153.122.206.114🇯🇵 AS131921153.122.192.0/20 GMO CLOUD K.K. GMO GlobalSign Holdings K.K. | ||||||
| SOA | dns1.fortcluster.jproot@fortcluster.jp serial=2756272150 | ||||||
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=1774530902 | ||||||
Subdomains
Same first word
fortcluster.jp |
DNS History
6 records (6 active, 0 former)
●NSdns1.fortcluster.jp2026-02-24 → 2026-03-26 · 2 obs
● 2026-03-26 13:51:34
●NSdns2.fortcluster.jp2026-02-24 → 2026-03-26 · 2 obs
● 2026-03-26 13:51:34
●NSns.namedserver.net2026-02-24 → 2026-03-26 · 2 obs
● 2026-03-26 13:51:34
●NSns2.namedserver.net2026-02-24 → 2026-03-26 · 2 obs
● 2026-03-26 13:51:34
●MXmx.blue.shared-server.net2026-02-24 → 2026-03-26 · 2 obs
● 2026-03-26 13:51:34
●MXmx.red.shared-server.net2026-02-24 → 2026-03-26 · 2 obs
● 2026-03-26 13:51:34
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp... | - |
| fortcluster.jp | ns2.namedserver.net, ns.namedserver.net | - |
✅ Authoritative Response
Server:157.120.112.212
NS records: ns2.namedserver.net, ns.namedserver.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for fortcluster.jp (unsigned zone)
⏱️ Timing
Total: 1271ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | dns2.fortcluster.jp, dns1.fortcluster.jp |
| MX | 2 | mx.red.shared-server.net (pri: 100), mx.blue.shared-server.net (pri: 100) |
| SOA | 1 | dns1.fortcluster.jp root.fortcluster.jp |
Analysis
Hierarchy
fortcluster.jp is a parent of dns2.fortcluster.jp and dns1.fortcluster.jp.
Name Servers
fortcluster.jp is delegated to four name servers: dns1.fortcluster.jp, dns2.fortcluster.jp, ns2.namedserver.net and ns.namedserver.net.
fortcluster.jp shares name servers with other domains at least partially, for instance combmori.com, onose-clinic.com, 57.81.122.153.in-addr.arpa, 35.44.122.153.in-addr.arpa and 98.53.122.153.in-addr.arpa.
Host names with three IP numbers: Host name dns1.fortcluster.jp points to 157.120.112.239, 157.120.113.239 and 157.120.114.239; host name dns2.fortcluster.jp points to 157.120.112.239, 157.120.113.239 and 157.120.114.239; host name ns2.namedserver.net points to 157.120.112.212, 157.120.113.212 and 157.120.114.212; host name ns.namedserver.net points to 157.120.112.212, 157.120.113.212 and 157.120.114.212. Host names pointing to 157.120.112.239: dns1.fortcluster.jp and dns2.fortcluster.jp. Host names pointing to 157.120.113.239: dns1.fortcluster.jp and dns2.fortcluster.jp. Host names pointing to 157.120.114.239: dns1.fortcluster.jp and dns2.fortcluster.jp. Host names pointing to 157.120.112.212: ns2.namedserver.net and ns.namedserver.net. Host names pointing to 157.120.113.212: ns2.namedserver.net and ns.namedserver.net. Host names pointing to 157.120.114.212: ns2.namedserver.net and ns.namedserver.net.
Mail Servers
fortcluster.jp is handled by two mail servers: mx.blue.shared-server.net and mx.red.shared-server.net.
fortcluster.jp shares the same mail server setup as other domains, including rental-sv2.jp, rsshserver.net, f-hs.com, shared-server.net and hosting-kit.com.
fortcluster.jp shares some mail servers with other domains, including capitaland.co.jp, sophiatechno.co.jp, wailea.co.jp, hasuya.jp and osgrp.jp.
Host names with one IP number:
mx.blue.shared-server.net points to: 153.122.206.94.
mx.red.shared-server.net points to: 153.122.206.114.