startract.co.jp - robtex.com
startract.co.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 203.138.28.27🇯🇵 InfoSphere203.138.0.0/16 INFOSPHERE | ||||||
| PTR | startract.co.jp | ||||||
| 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 | startract.co.jp ⭐ | ||||||
| A | 203.138.28.27🇯🇵 InfoSphere203.138.0.0/16 INFOSPHERE | ||||||
| PTR | startract.co.jp | ||||||
| TXT | v=spf1 include:fmx.etius.jp +ip4:203.138.27.2/32 +ip4:203.138.28.27/32 -all | ||||||
| SOA | ns3.sphere.ad.jpdns@sphere.ad.jp serial=1696120625 | ||||||
co.jp
| DNSSEC | ⚠️ Not signed | ||||||
| TXT | co.jp. | ||||||
PTR for
MX for
startract.co.jp |
Same first word
startract.co.jp |
startract.com |
Similar names
DNS History
5 records (4 active, 1 former)
●NSns3.sphere.ad.jp2007-11-27 → 2026-05-10 · 2 obs
● 2026-05-10 17:06:00
●NSns4.sphere.ad.jp2007-11-27 → 2026-05-10 · 2 obs
● 2026-05-10 17:06:00
●MXstartract.co.jp2007-11-27 → 2026-05-10 · 2 obs
● 2026-05-10 17:06:00
●A203.138.28.272015-06-30 → 2026-05-10 · 3 obs
● 2015-06-30 10:55:06
● 2026-05-10 17:06:00
○A210.150.52.2502007-11-27 → 2007-11-27 · 3 obs
○ 2015-06-30 10:55:06
○ 2026-05-10 17:06:00
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp... | - |
| startract.co.jp | 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 startract.co.jp (unsigned zone)
⏱️ Timing
Total: 4092ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 203.138.28.27 |
| NS | 2 | ns4.sphere.ad.jp, ns3.sphere.ad.jp |
| MX | 1 | startract.co.jp (pri: 10) |
| TXT | 1 | v=spf1 include:fmx.etius.jp +ip4:203.138 |
| SOA | 1 | ns3.sphere.ad.jp dns.sphere.ad.jp |
Analysis
Mail Server Role
startract.co.jp serves as the mail server for startract.co.jp.
IP Addresses
startract.co.jp points to IP number: 203.138.28.27.
Other host names, for instance hinox.com share IP numbers with startract.co.jp.
Name Servers
startract.co.jp is delegated to two name servers: ns3.sphere.ad.jp and ns4.sphere.ad.jp.
startract.co.jp shares the same name server setup as gravitonics.jp, sanseki.net, hkc-dm.co.jp, jjpp.jp and itzeirishi.com.
startract.co.jp shares some name servers with other domains, for instance earthport.jp.
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
startract.co.jp is handled by a single mail server, startract.co.jp.
startract.co.jp points to a single IP: 203.138.28.27.