md-system.com - robtex.com
md-system.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 210.136.236.20🇯🇵 InfoSphere210.136.0.0/16 INFOSPHERE | ||||||
| PTR | md-system.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 | md-system.com ⭐ | ||||||
| A | 210.136.236.20🇯🇵 InfoSphere210.136.0.0/16 INFOSPHERE | ||||||
| PTR | md-system.com | ||||||
| TXT | v=spf1 include:fmx.etius.jp +ip4:124.146.198.2/32 +ip4:210.136.236.20/32 -all | ||||||
| SOA | ns3.sphere.ad.jpdns@sphere.ad.jp serial=1576034145 | ||||||
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=1776113752 | ||||||
PTR for
MX for
md-system.com |
Same first word
md-system.co.jp |
md-system.kz |
md-system.com |
Similar names
DNS History
4 records (4 active, 0 former)
●NSns3.sphere.ad.jp2015-06-26 → 2026-04-13 · 2 obs
● 2026-04-13 21:15:06
●NSns4.sphere.ad.jp2015-06-26 → 2026-04-13 · 2 obs
● 2026-04-13 21:15:06
●MXmd-system.com2015-06-26 → 2026-04-13 · 2 obs
● 2026-04-13 21:15:06
●A210.136.236.202015-06-26 → 2026-04-13 · 2 obs
● 2026-04-13 21:15:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| md-system.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 md-system.com (unsigned zone)
⏱️ Timing
Total: 1074ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 210.136.236.20 |
| NS | 2 | ns4.sphere.ad.jp, ns3.sphere.ad.jp |
| MX | 1 | md-system.com (pri: 10) |
| TXT | 1 | v=spf1 include:fmx.etius.jp +ip4:124.146 |
| SOA | 1 | ns3.sphere.ad.jp dns.sphere.ad.jp |
Analysis
Mail Server Role
md-system.com serves as the mail server for md-system.com.
IP Addresses
md-system.com resolves to one IP number: 210.136.236.20.
Name Servers
md-system.com's delegation uses two name servers: ns3.sphere.ad.jp and ns4.sphere.ad.jp.
md-system.com uses the same name server setup as other domains, such as www.ygda.or.jp, kokubuhiroko.net, www.andou-ph.co.jp, n-fahne.jp and www.sakai-med.jp.
md-system.com at least partially shares name servers with other domains, for example nsd-inc.co.jp.
Host names with a single IP address: ns3.sphere.ad.jp points to 202.239.113.22; ns4.sphere.ad.jp points to 202.239.113.30.
Mail Servers
md-system.com is handled by a single mail server, md-system.com.
Host name md-system.com resolves to a single IP: 210.136.236.20.