slowbooks.jp - robtex.com
slowbooks.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 140.227.94.138🇯🇵 InfoSphere140.227.0.0/16 INFOSPHERE | ||||||
| PTR | slowbooks.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 | slowbooks.jp ⭐ | ||||||
| A | 140.227.94.138🇯🇵 InfoSphere140.227.0.0/16 INFOSPHERE | ||||||
| PTR | slowbooks.jp | ||||||
| TXT | v=spf1 include:fmx.etius.jp +ip4:140.227.94.2/32 +ip4:140.227.94.138/32 -all | ||||||
| SOA | ns3.sphere.ad.jpdns@sphere.ad.jp serial=1656910811 | ||||||
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=1776177902 | ||||||
MX for
slowbooks.jp |
Same first word
slowbooks.jp |
Similar names
DNS History
5 records (4 active, 1 former)
●NSns3.sphere.ad.jp2017-05-12 → 2026-04-14 · 2 obs
● 2026-04-14 14:55:44
●NSns4.sphere.ad.jp2017-05-12 → 2026-04-14 · 2 obs
● 2026-04-14 14:55:44
●MXslowbooks.jp2017-05-12 → 2026-04-14 · 2 obs
● 2026-04-14 14:55:44
○A111.89.202.232017-05-12 → 2017-05-12 · 3 obs
○ 2026-04-07 08:05:52
○ 2026-04-14 14:55:44
●A140.227.94.1382026-04-07 → 2026-04-14 · 3 obs
● 2026-04-07 08:05:52
● 2026-04-14 14:55:44
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp... | - |
| slowbooks.jp | ns4.sphere.ad.jp, ns3.sphere.ad.jp | - |
✅ Authoritative Response
Server:202.239.113.30
NS records: ns4.sphere.ad.jp, ns3.sphere.ad.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for slowbooks.jp (unsigned zone)
⏱️ Timing
Total: 1435ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 140.227.94.138 |
| NS | 2 | ns3.sphere.ad.jp, ns4.sphere.ad.jp |
| MX | 1 | slowbooks.jp (pri: 10) |
| TXT | 1 | v=spf1 include:fmx.etius.jp +ip4:140.227 |
| SOA | 1 | ns3.sphere.ad.jp dns.sphere.ad.jp |
Analysis
Mail Server Role
slowbooks.jp serves as the mail server for slowbooks.jp.
IP Addresses
slowbooks.jp points to IP number: 140.227.94.138.
Name Servers
slowbooks.jp is delegated to two name servers: ns3.sphere.ad.jp and ns4.sphere.ad.jp.
slowbooks.jp shares the same name server setup as irimajiri.net, kk-riken.com, washizu-office.co.jp, ohashi-shokai.co.jp and kumamoto-tatami.on.arena.ne.jp.
slowbooks.jp shares name servers with other domains at least partially, for instance isbs.gr.jp and tsutaete.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
slowbooks.jp is handled by a single mail server, slowbooks.jp.
slowbooks.jp points to a single IP: 140.227.94.138.