tetsu-stc.com - robtex.com
tetsu-stc.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 1.33.175.160🇯🇵 InfoSphere1.33.0.0/16 INFOSPHERE | ||||||
| PTR | tetsu-stc.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 | tetsu-stc.com ⭐ | ||||||
| A | 1.33.175.160🇯🇵 InfoSphere1.33.0.0/16 INFOSPHERE | ||||||
| PTR | tetsu-stc.com | ||||||
| TXT | v=spf1 include:fmx.etius.jp +ip4:1.33.174.2/32 +ip4:1.33.175.160/32 -all | ||||||
| SOA | ns3.sphere.ad.jpdns@sphere.ad.jp serial=1576034218 | ||||||
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=1774682437 | ||||||
PTR for
MX for
tetsu-stc.com |
Same first word
tetsu-stc.com |
DNS History
4 records (4 active, 0 former)
●NSns3.sphere.ad.jp2015-05-23 → 2026-03-28 · 2 obs
● 2026-03-28 07:28:52
●NSns4.sphere.ad.jp2015-05-23 → 2026-03-28 · 2 obs
● 2026-03-28 07:28:52
●MXtetsu-stc.com2015-05-23 → 2026-03-28 · 2 obs
● 2026-03-28 07:28:52
●A1.33.175.1602015-05-23 → 2026-03-28 · 2 obs
● 2026-03-28 07:28:52
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | d.gtld-servers.net, b.gtld-servers.net, a.gtld-servers.net, c.gtld-servers.net... | - |
| tetsu-stc.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 tetsu-stc.com (unsigned zone)
⏱️ Timing
Total: 1275ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 1.33.175.160 |
| NS | 2 | ns3.sphere.ad.jp, ns4.sphere.ad.jp |
| MX | 1 | tetsu-stc.com (pri: 10) |
| TXT | 1 | v=spf1 include:fmx.etius.jp +ip4:1.33.17 |
| SOA | 1 | ns3.sphere.ad.jp dns.sphere.ad.jp |
Analysis
Mail Server Role
For tetsu-stc.com, the mail server is tetsu-stc.com.
IP Addresses
tetsu-stc.com points to a single IP number: 1.33.175.160.
Name Servers
tetsu-stc.com is delegated to two name servers: ns3.sphere.ad.jp and ns4.sphere.ad.jp.
tetsu-stc.com shares the same name server setup as other domains, for example cbel.jp, st23.arena.ne.jp, coffee-wagen.com, www.p-ice.jp and sg29sse.arena.ne.jp.
tetsu-stc.com at least partially shares name servers with other domains, for example qse.jp and katotaro.com.
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 tetsu-stc.com.
Host name tetsu-stc.com points to IP address 1.33.175.160.