office-dn.com - robtex.com
office-dn.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 161.34.12.8🇯🇵 InfoSphere161.34.0.0/16 INFOSPHERE | ||||||
| PTR | office-dn.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 | office-dn.com ⭐ | ||||||
| A | 161.34.12.8🇯🇵 InfoSphere161.34.0.0/16 INFOSPHERE | ||||||
| PTR | office-dn.com | ||||||
| TXT | v=spf1 include:fmx.etius.jp +ip4:161.34.11.2/32 +ip4:161.34.12.8/32 -all | ||||||
| SOA | ns3.sphere.ad.jpdns@sphere.ad.jp serial=1573005849 | ||||||
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=1778588666 | ||||||
PTR for
MX for
office-dn.com |
Same first word
office-dn.com |
Similar names
DNS History
7 records (4 active, 3 former)
○NSasns1.customer.ne.jp2015-07-10 → 2018-08-12 · 4 obs
● 2018-08-12 22:24:42
○ 2026-05-12 08:36:28
○ 2026-05-12 12:43:54
○NSasns2.customer.ne.jp2015-07-10 → 2018-08-12 · 4 obs
● 2018-08-12 22:24:42
○ 2026-05-12 08:36:28
○ 2026-05-12 12:43:54
●NSns3.sphere.ad.jp2026-05-12 → 2026-05-12 · 3 obs
● 2026-05-12 08:36:28
● 2026-05-12 12:43:54
●NSns4.sphere.ad.jp2026-05-12 → 2026-05-12 · 3 obs
● 2026-05-12 08:36:28
● 2026-05-12 12:43:54
●MXoffice-dn.com2015-07-10 → 2026-05-12 · 2 obs
● 2026-05-12 12:43:54
●A161.34.12.82026-05-12 → 2026-05-12 · 3 obs
● 2026-05-12 08:36:28
● 2026-05-12 12:43:54
○A61.112.32.1872015-07-10 → 2018-08-12 · 4 obs
● 2018-08-12 22:24:42
○ 2026-05-12 08:36:28
○ 2026-05-12 12:43:54
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| office-dn.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 office-dn.com (unsigned zone)
⏱️ Timing
Total: 974ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 161.34.12.8 |
| NS | 2 | ns4.sphere.ad.jp, ns3.sphere.ad.jp |
| MX | 1 | office-dn.com (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
office-dn.com serves as the mail server for office-dn.com.
IP Addresses
office-dn.com points to a single IP address: 161.34.12.8.
Name Servers
office-dn.com is delegated to two name servers: ns3.sphere.ad.jp and ns4.sphere.ad.jp.
office-dn.com uses the same name server setup as other domains, including www.kousha.or.jp, www.fujicredit.co.jp, www.trandia.com, kk-koiwa.co.jp and itohsekkei.com.
Hostnames with a single IP
ns3.sphere.ad.jp resolves to: 202.239.113.22.
ns4.sphere.ad.jp resolves to: 202.239.113.30.
Mail Servers
Mail for office-dn.com is handled by a single mail server, office-dn.com.
Host office-dn.com points to IP 161.34.12.8.