sd-ken.com - robtex.com
sd-ken.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 143.125.238.89🇯🇵 InfoSphere143.125.224.0/19 INFOSPHERE | ||||||
| PTR | sd-ken.com | ||||||
| NS | ns2.mcnet.ad.jp ⭐ | ||||||
| A | 2001:350:2:17::2🇯🇵 MCNET2001:350::/32 NTT SmartConnect Corp. | ||||||
| PTR | ns2.mcnet.ad.jp | ||||||
| A | 210.172.32.132🇯🇵 MCNET210.172.32.0/19 | ||||||
| PTR | ns2.mcnet.ad.jp | ||||||
| NS | ns.mcnet.ad.jp | ||||||
| A | 2001:350:2:16::2🇯🇵 MCNET2001:350::/32 NTT SmartConnect Corp. | ||||||
| PTR | ns.mcnet.ad.jp | ||||||
| A | 210.172.32.50🇯🇵 MCNET210.172.32.0/19 | ||||||
| PTR | ns.mcnet.ad.jp | ||||||
| MX | mail.sd-ken.com ⭐ | ||||||
| A | 143.125.238.89🇯🇵 InfoSphere143.125.224.0/19 INFOSPHERE | ||||||
| PTR | sd-ken.com | ||||||
| TXT | v=spf1 include:sd-ken.com.spf.hosting-pf.net ~all | ||||||
| SOA | ns.mcnet.ad.jppostmaster@mcnet.ad.jp 2012-03-09 #3 | ||||||
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=1784677437 | ||||||
PTR for
Subdomains
mail.sd-ken.com |
Same first word
sd-ken.com |
Similar names
DNS History
5 records (4 active, 1 former)
●NSns.mcnet.ad.jp2015-06-03 → 2026-07-21 · 2 obs
● 2026-07-21 23:47:10
●NSns2.mcnet.ad.jp2015-06-03 → 2026-07-21 · 2 obs
● 2026-07-21 23:47:10
●MXmail.sd-ken.com2015-06-03 → 2026-07-21 · 2 obs
● 2026-07-21 23:47:10
●A143.125.238.892018-09-07 → 2026-07-21 · 3 obs
● 2018-09-07 13:40:02
● 2026-07-21 23:47:10
○A203.211.184.1692015-06-03 → 2017-01-16 · 4 obs
● 2017-01-16 10:56:08
○ 2018-09-07 13:40:02
○ 2026-07-21 23:47:10
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | d.gtld-servers.net, m.gtld-servers.net, h.gtld-servers.net, b.gtld-servers.net... | - |
| sd-ken.com | ns.mcnet.ad.jp, ns2.mcnet.ad.jp | - |
✅ Authoritative Response
Server:210.172.32.50
NS records: ns.mcnet.ad.jp, ns2.mcnet.ad.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sd-ken.com (unsigned zone)
⏱️ Timing
Total: 1274ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 143.125.238.89 |
| NS | 2 | ns.mcnet.ad.jp, ns2.mcnet.ad.jp |
| MX | 1 | mail.sd-ken.com (pri: 10) |
| TXT | 1 | v=spf1 include:sd-ken.com.spf.hosting-pf |
| SOA | 1 | ns.mcnet.ad.jp postmaster.mcnet.ad.jp |
Analysis
Hierarchy
sd-ken.com is the parent zone for mail.sd-ken.com.
IP Addresses
sd-ken.com directs to one IP number, which is 143.125.238.89.
Other host names, such as mail.sd-ken.com, share IP numbers with sd-ken.com.
Name Servers
sd-ken.com is delegated to two name servers: ns2.mcnet.ad.jp and ns.mcnet.ad.jp.
sd-ken.com has the same name server delegation as a number of other domains, such as shotoku-netsushori.co.jp, teijinkousan.co.jp, mobileserver.jp and two more.
sd-ken.com partially shares its name servers with domains like webl.jp and nttsmc.com.
ns2.mcnet.ad.jp and ns.mcnet.ad.jp each resolve to two IP addresses: ns2.mcnet.ad.jp points to 210.172.32.132 and 2001:350:2:17::2, while ns.mcnet.ad.jp points to 210.172.32.50 and 2001:350:2:16::2.
Mail Servers
sd-ken.com routes its mail through a single mail server, mail.sd-ken.com.
mail.sd-ken.com resolves to a single IP number: 143.125.238.89.