ryuchi.co.jp - robtex.com
ryuchi.co.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 218.40.193.23🇯🇵 ODN218.40.192.0/20 | ||||||
| PTR | s21840193-23.bizhost.ultina.jp | ||||||
| NS | ns.ryuchi.co.jp ⭐ | ||||||
| A | 218.40.193.23🇯🇵 ODN218.40.192.0/20 | ||||||
| PTR | s21840193-23.bizhost.ultina.jp | ||||||
| NS | shns2.ultina.jp | ||||||
| A | 210.169.160.52🇯🇵 ODN210.169.128.0/17 | ||||||
| PTR | shns2.ultina.jp | ||||||
| MX | ryuchi.co.jp ⭐ | ||||||
| A | 218.40.193.23🇯🇵 ODN218.40.192.0/20 | ||||||
| PTR | s21840193-23.bizhost.ultina.jp | ||||||
| TXT | v=spf1 +a +mx include:ultina.jp ~all | ||||||
| SOA | ns.ryuchi.co.jphata@ryuchi.co.jp serial=1768882215 | ||||||
co.jp
| DNSSEC | ⚠️ Not signed | ||||||
| TXT | co.jp. | ||||||
MX for
ryuchi.co.jp |
Subdomains
ns.ryuchi.co.jp |
Same first word
Similar names
DNS History
4 records (4 active, 0 former)
●NSns.ryuchi.co.jp2015-07-23 → 2026-03-30 · 2 obs
● 2026-03-30 00:32:44
●MXryuchi.co.jp2015-07-23 → 2026-03-30 · 2 obs
● 2026-03-30 00:32:44
●A218.40.193.232015-07-23 → 2026-03-30 · 2 obs
● 2026-03-30 00:32:44
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | b.dns.jp, g.dns.jp, d.dns.jp, h.dns.jp... | - |
| ryuchi.co.jp | ns.ryuchi.co.jp, shns2.ultina.jp | 1 record |
✅ Authoritative Response
Server:218.40.193.23
NS records: ns.ryuchi.co.jp, shns2.ultina.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ryuchi.co.jp (unsigned zone)
⏱️ Timing
Total: 1815ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 218.40.193.23 |
| NS | 2 | shns2.ultina.jp, ns.ryuchi.co.jp |
| MX | 1 | ryuchi.co.jp (pri: 10) |
| TXT | 1 | v=spf1 +a +mx include:ultina.jp ~all |
| SOA | 1 | ns.ryuchi.co.jp hata.ryuchi.co.jp |
📌 Glue Records Collected
Total: 1
In-bailiwick: 1 (ns.ryuchi.co.jp)
Analysis
Hierarchy
ns.ryuchi.co.jp is a child of ryuchi.co.jp.
Mail Server Role
ryuchi.co.jp serves as the mail server for ryuchi.co.jp.
IP Addresses
ryuchi.co.jp resolves to one IP number: 218.40.193.23.
Other host names, for example ns.ryuchi.co.jp, share IP numbers with ryuchi.co.jp.
Name Servers
ryuchi.co.jp's delegation uses two name servers: shns2.ultina.jp and ns.ryuchi.co.jp.
ryuchi.co.jp at least partially shares name servers with other domains, including nskenkou.net, asutoro.com, e-sellers.co.jp, watch-bc.co.jp and mo-labo.jp.
These name servers are commonly used together with the name servers ns.nskenkou.net, ns.asutoro.com, ns.e-sellers.co.jp and ns.watch-bc.co.jp.
Host names with a single IP address: shns2.ultina.jp points to 210.169.160.52; ns.ryuchi.co.jp points to 218.40.193.23.
Mail Servers
ryuchi.co.jp is handled by a single mail server, ryuchi.co.jp.
Host name ryuchi.co.jp resolves to a single IP: 218.40.193.23.