ext-fed.com - robtex.com
ext-fed.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 119.245.142.87🇯🇵 InfoSphere119.245.0.0/16 INFOSPHERE | ||||||
| PTR | ext-fed.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 | ext-fed.com ⭐ | ||||||
| A | 119.245.142.87🇯🇵 InfoSphere119.245.0.0/16 INFOSPHERE | ||||||
| PTR | ext-fed.com | ||||||
| TXT | v=spf1 include:fmx.etius.jp +ip4:119.245.142.2/32 +ip4:119.245.142.87/32 -all | ||||||
| SOA | ns3.sphere.ad.jpdns@sphere.ad.jp serial=1689071427 | ||||||
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=1775468867 | ||||||
MX for
ext-fed.com |
Subdomains
www.ext-fed.com |
Same first word
ext-fed.com |
DNS History
5 records (4 active, 1 former)
●NSns3.sphere.ad.jp2007-12-29 → 2026-04-06 · 2 obs
● 2026-04-06 09:52:02
●NSns4.sphere.ad.jp2007-12-29 → 2026-04-06 · 2 obs
● 2026-04-06 09:52:02
●MXext-fed.com2007-12-29 → 2026-04-06 · 2 obs
● 2026-04-06 09:52:02
●A119.245.142.872015-07-02 → 2026-04-06 · 3 obs
● 2015-07-02 23:16:50
● 2026-04-06 09:52:02
○A210.136.179.262007-12-29 → 2007-12-29 · 3 obs
○ 2015-07-02 23:16:50
○ 2026-04-06 09:52:02
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | h.gtld-servers.net, l.gtld-servers.net, f.gtld-servers.net, c.gtld-servers.net... | - |
| ext-fed.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 ext-fed.com (unsigned zone)
⏱️ Timing
Total: 1055ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 119.245.142.87 |
| NS | 2 | ns4.sphere.ad.jp, ns3.sphere.ad.jp |
| MX | 1 | ext-fed.com (pri: 10) |
| TXT | 1 | v=spf1 include:fmx.etius.jp +ip4:119.245 |
| SOA | 1 | ns3.sphere.ad.jp dns.sphere.ad.jp |
Analysis
Hierarchy
ext-fed.com is the parent of www.ext-fed.com.
Mail Server Role
For ext-fed.com, the mail server is ext-fed.com.
IP Addresses
ext-fed.com points to a single IP number: 119.245.142.87.
Other host names, for instance www.ext-fed.com, share IP numbers with ext-fed.com.
Name Servers
ext-fed.com is delegated to two name servers: ns3.sphere.ad.jp and ns4.sphere.ad.jp.
ext-fed.com shares the same name server setup as other domains, for example 65.227.140.in-addr.arpa, br.st37.arena.ne.jp, kitagawa-denki.co.jp, dc31.etius.jp and command-z.jp.
ext-fed.com partially shares name servers with other domains, for instance flowertour.jp, konoshima.co.jp and jonan.ac.jp.
Host names with one IP number:
The host ns3.sphere.ad.jp points to 202.239.113.22 and the host ns4.sphere.ad.jp points to 202.239.113.30.
Mail Servers
One mail server handles ext-fed.com.
Host name ext-fed.com points to IP address 119.245.142.87.