crew21.jp - robtex.com
crew21.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 119.245.205.43🇯🇵 InfoSphere119.245.0.0/16 INFOSPHERE | ||||||
| PTR | crew21.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 | crew21.jp ⭐ | ||||||
| A | 119.245.205.43🇯🇵 InfoSphere119.245.0.0/16 INFOSPHERE | ||||||
| PTR | crew21.jp | ||||||
| TXT | v=spf1 include:fmx.etius.jp +ip4:119.245.205.2/32 +ip4:119.245.205.43/32 -all | ||||||
| SOA | ns3.sphere.ad.jpdns@sphere.ad.jp serial=1576034019 | ||||||
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=1778626803 | ||||||
PTR for
MX for
crew21.jp |
Same first word
crew21.jp |
DNS History
8 records (4 active, 4 former)
○NSns1.rental-sv.jp2015-07-04 → 2017-02-13 · 4 obs
● 2017-02-13 07:44:02
○ 2020-01-03 06:18:36
○ 2026-05-12 23:42:58
○NSns2.rental-sv.jp2015-07-04 → 2017-02-13 · 4 obs
● 2017-02-13 07:44:02
○ 2020-01-03 06:18:36
○ 2026-05-12 23:42:58
●NSns3.sphere.ad.jp2020-01-03 → 2026-05-12 · 3 obs
● 2020-01-03 06:18:36
● 2026-05-12 23:42:58
●NSns4.sphere.ad.jp2020-01-03 → 2026-05-12 · 3 obs
● 2020-01-03 06:18:36
● 2026-05-12 23:42:58
●MXcrew21.jp2020-01-03 → 2026-05-12 · 3 obs
● 2020-01-03 06:18:36
● 2026-05-12 23:42:58
○MXqsmtp02.rental-sv.jp2015-07-04 → 2017-02-13 · 4 obs
● 2017-02-13 07:44:02
○ 2020-01-03 06:18:36
○ 2026-05-12 23:42:58
○A114.179.231.752015-07-04 → 2017-02-13 · 4 obs
● 2017-02-13 07:44:02
○ 2020-01-03 06:18:36
○ 2026-05-12 23:42:58
●A119.245.205.432020-01-03 → 2026-05-12 · 3 obs
● 2020-01-03 06:18:36
● 2026-05-12 23:42:58
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp... | - |
| crew21.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 crew21.jp (unsigned zone)
⏱️ Timing
Total: 1601ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 119.245.205.43 |
| NS | 2 | ns4.sphere.ad.jp, ns3.sphere.ad.jp |
| MX | 1 | crew21.jp (pri: 10) |
| TXT | 1 | v=spf1 include:fmx.etius.jp +ip4:119.245 |
| SOA | 1 | ns3.sphere.ad.jp dns.sphere.ad.jp |
Analysis
Mail Server Role
crew21.jp is the mail server for crew21.jp.
IP Addresses
crew21.jp resolves to a single IP: 119.245.205.43.
Name Servers
crew21.jp has two name servers: ns3.sphere.ad.jp and ns4.sphere.ad.jp.
crew21.jp shares the same name server setup as other domains, for example dc1.test100.etius.jp, www.maricco.com, tokushu-paper.jp, mail.egao2525.jp and tomii.co.jp.
crew21.jp partially shares name servers with other domains, for instance sgv.co.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
One mail server handles crew21.jp.
Host name crew21.jp points to IP 119.245.205.43.