dtnext.jp - robtex.com
dtnext.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 161.34.5.17🇯🇵 InfoSphere161.34.0.0/16 INFOSPHERE | ||||||
| PTR | dtnext.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 | dtnext.jp ⭐ | ||||||
| A | 161.34.5.17🇯🇵 InfoSphere161.34.0.0/16 INFOSPHERE | ||||||
| PTR | dtnext.jp | ||||||
| TXT | v=spf1 include:fmx.etius.jp +ip4:161.34.5.2/32 +ip4:161.34.5.17/32 -all | ||||||
| SOA | ns3.sphere.ad.jpdns@sphere.ad.jp serial=1576034027 | ||||||
jp
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | z.dns.jp ⭐ | ||||||
| NS | a.dns.jp | ||||||
| NS | b.dns.jp | ||||||
| NS | c.dns.jp | ||||||
| NS | d.dns.jp | ||||||
| NS | e.dns.jp | ||||||
| NS | f.dns.jp | ||||||
| NS | g.dns.jp | ||||||
| NS | h.dns.jp | ||||||
| SOA | z.dns.jproot@dns.jp serial=1776067203 | ||||||
PTR for
MX for
dtnext.jp |
Same first word
Similar names
tdnext.pro |
dentxt.com |
tdnext.com |
dtxnet.com |
xtdnet.nl |
tdxnet.com |
xtdnet.com |
tdnext.net |
endtxt.com |
txdent.com |
txtend.com |
dtxnet.sk |
tdnext.ru |
txtden.com |
dtxnet.cz |
dxtnet.net |
DNS History
7 records (4 active, 3 former)
○NSasns1.customer.ne.jp2015-05-28 → 2017-04-21 · 4 obs
● 2017-04-21 04:56:16
○ 2026-03-27 12:07:20
○ 2026-04-13 08:09:00
○NSasns2.customer.ne.jp2015-05-28 → 2017-04-21 · 4 obs
● 2017-04-21 04:56:16
○ 2026-03-27 12:07:20
○ 2026-04-13 08:09:00
●NSns3.sphere.ad.jp2026-03-27 → 2026-04-13 · 3 obs
● 2026-03-27 12:07:20
● 2026-04-13 08:09:00
●NSns4.sphere.ad.jp2026-03-27 → 2026-04-13 · 3 obs
● 2026-03-27 12:07:20
● 2026-04-13 08:09:00
●MXdtnext.jp2015-05-28 → 2026-04-13 · 2 obs
● 2026-04-13 08:09:00
●A161.34.5.172026-03-27 → 2026-04-13 · 3 obs
● 2026-03-27 12:07:20
● 2026-04-13 08:09:00
○A61.112.33.2432015-05-28 → 2017-04-21 · 4 obs
● 2017-04-21 04:56:16
○ 2026-03-27 12:07:20
○ 2026-04-13 08:09:00
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | e.dns.jp, g.dns.jp, c.dns.jp, a.dns.jp... | - |
| dtnext.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 dtnext.jp (unsigned zone)
⏱️ Timing
Total: 1710ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 161.34.5.17 |
| NS | 2 | ns4.sphere.ad.jp, ns3.sphere.ad.jp |
| MX | 1 | dtnext.jp (pri: 10) |
| TXT | 1 | v=spf1 include:fmx.etius.jp +ip4:161.34. |
| SOA | 1 | ns3.sphere.ad.jp dns.sphere.ad.jp |
Analysis
Mail Server Role
dtnext.jp is the mail server for dtnext.jp.
IP Addresses
dtnext.jp resolves to a single IP: 161.34.5.17.
Name Servers
dtnext.jp has two name servers: ns3.sphere.ad.jp and ns4.sphere.ad.jp.
dtnext.jp shares the same name server setup as other domains, for example pompoco.or.jp, ca-computer.on.arena.ne.jp, mash-japan.co.jp, acs-inc.jp and nsc-com.co.jp.
dtnext.jp partially shares name servers with other domains, for instance mail.yes-sumai.net.
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
One mail server handles dtnext.jp.
Host name dtnext.jp points to IP 161.34.5.17.