cast-skd.com - robtex.com
cast-skd.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 203.137.165.211🇯🇵 IDC203.137.128.0/18 Frontier Inc. | ||||||
| PTR | 203-137-165-211.kelvin.jp-east-2.compute.idcfcloud.net | ||||||
| NS | ns1.art21.co.jp ⭐ | ||||||
| A | 122.221.93.34🇯🇵 UCOM122.220.0.0/15 ARTERIA Networks Corporation(UCOM) | ||||||
| PTR | 122x221x93x34.ap122.ftth.ucom.ne.jp | ||||||
| NS | sdi05.h-ix.jp | ||||||
| A | 61.198.16.45🇯🇵 H-IX61.198.16.0/20 Hokuden Information Technology,Inc.(AS17689) 4, East 3, Oodori, Chuo-ku, Sapporo 060-0041 Japan | ||||||
| PTR | sdi05.h-ix.jp | ||||||
| MX | mx.cast-skd.com ⭐ | ||||||
| A | 153.122.6.43🇯🇵 AS131921153.122.0.0/20 GMO CLOUD K.K. GMO GlobalSign Holdings K.K. | ||||||
| PTR | mailsvr03.art21.co.jp | ||||||
| TXT | v=spf1 +ip4:203.137.165.211 +include:mailsvr03.art21.co.jp ~all | ||||||
| SOA | ns1.art21.co.jppostmaster@ns1.art21.co.jp 2024-11-25 #0 | ||||||
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=1776285002 | ||||||
Subdomains
mx.cast-skd.com |
Same first word
cast-skd.com |
DNS History
4 records (4 active, 0 former)
●NSns1.art21.co.jp2019-12-18 → 2026-04-15 · 2 obs
● 2026-04-15 20:31:48
●MXmx.cast-skd.com2019-12-18 → 2026-04-15 · 2 obs
● 2026-04-15 20:31:48
●A203.137.165.2112019-12-18 → 2026-04-15 · 2 obs
● 2026-04-15 20:31:48
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| cast-skd.com | ns1.art21.co.jp, sdi05.h-ix.jp | - |
✅ Authoritative Response
Server:61.198.16.45
NS records: ns1.art21.co.jp, sdi05.h-ix.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cast-skd.com (unsigned zone)
⏱️ Timing
Total: 1074ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 203.137.165.211 |
| NS | 2 | sdi05.h-ix.jp, ns1.art21.co.jp |
| MX | 1 | mx.cast-skd.com (pri: 10) |
| TXT | 1 | v=spf1 +ip4:203.137.165.211 +include:mai |
| SOA | 1 | ns1.art21.co.jp postmaster.ns1.art21.co. |
Analysis
Hierarchy
cast-skd.com is a parent of mx.cast-skd.com.
IP Addresses
cast-skd.com points to a single IP number: 203.137.165.211.
Name Servers
Delegation for cast-skd.com rests with two name servers, sdi05.h-ix.jp and ns1.art21.co.jp.
cast-skd.com shares the same name server setup as other domains, including career-bank.jp, sbn.co.jp, medical-plaza.jp, ntah.co.jp and obihirokita.ac.jp.
cast-skd.com at least partially shares name servers with other domains, for instance sddgrp.co.jp, misawa-reform.co.jp, misawa.jp, 27.198.61.in-addr.arpa and t-coalcenter.co.jp.
These name servers are commonly used with sdi03.h-ix.jp and h-ix.jp.
Host names with one IP number: sdi05.h-ix.jp points to 61.198.16.45; ns1.art21.co.jp points to 122.221.93.34.
Mail Servers
cast-skd.com is handled by a single mail server, mx.cast-skd.com.
mx.cast-skd.com points to a single IP: 153.122.6.43.