www.ext-fed.com - robtex.com
www.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 ⭐ ⚠️ Not in parent delegation | ||||||
| A | 202.239.113.22🇯🇵 InfoSphere202.239.64.0/18 INFOSPHERE | ||||||
| PTR | ns3.sphere.ad.jp | ||||||
| NS | ns4.sphere.ad.jp ⚠️ Not in parent delegation | ||||||
| A | 202.239.113.30🇯🇵 InfoSphere202.239.64.0/18 INFOSPHERE | ||||||
| PTR | ns4.sphere.ad.jp | ||||||
| MX | www.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=1689071572 | ||||||
ext-fed.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 119.245.142.87🇯🇵 InfoSphere119.245.0.0/16 INFOSPHERE | ||||||
| NS | ns3.sphere.ad.jp ⭐ | ||||||
| NS | ns4.sphere.ad.jp | ||||||
| MX | 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 | ||||||
MX for
www.ext-fed.com |
Same first word
Similar names
DNS History
4 records (4 active, 0 former)
●NSns3.sphere.ad.jp2015-08-23 → 2026-04-11 · 2 obs
● 2026-04-11 19:37:30
●NSns4.sphere.ad.jp2015-08-23 → 2026-04-11 · 2 obs
● 2026-04-11 19:37:30
●MXwww.ext-fed.com2015-08-23 → 2026-04-11 · 2 obs
● 2026-04-11 19:37:30
●A119.245.142.872015-08-23 → 2026-04-11 · 2 obs
● 2026-04-11 19:37:30
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | k.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, f.gtld-servers.net... | - |
| ext-fed.com | ns3.sphere.ad.jp, ns4.sphere.ad.jp | - |
✅ Authoritative Response
Server:202.239.113.30
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: 1117ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 119.245.142.87 |
| NS | 2 | ns4.sphere.ad.jp, ns3.sphere.ad.jp |
| MX | 1 | www.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
Mail Server Role
www.ext-fed.com serves as the mail server for www.ext-fed.com.
IP Addresses
www.ext-fed.com resolves to a single IP address: 119.245.142.87.
Other host names, for instance ext-fed.com, share IP numbers with www.ext-fed.com.
Name Servers
www.ext-fed.com's delegation uses two name servers, ns3.sphere.ad.jp and ns4.sphere.ad.jp.
www.ext-fed.com shares the same name server setup as other domains, for example kyo-a.co.jp, replan17.on.arena.ne.jp, infoclipperupdate.net, sumita.co-site.jp and msolution.jp.
www.ext-fed.com at least partially shares name servers with other domains, for example webstaff.ne.jp, sivpn.jp and sukeneko.com.
Host names with a single IP:
ns3.sphere.ad.jp points to 202.239.113.22.
ns4.sphere.ad.jp points to 202.239.113.30.
Mail Servers
A single mail server handles www.ext-fed.com.
www.ext-fed.com points to a single IP: 119.245.142.87.