optinet.jp - dns.ninja
optinet.jp
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=1783210502 | ||||||
MX for
optinet.jp |
Same first word
Similar names
DNS History
11 records (7 active, 4 former)
○NSname01.cssv.jp2015-08-14 → 2020-09-18 · 4 obs
● 2020-09-18 17:39:10
○ 2026-02-22 11:44:12
○ 2026-07-05 00:37:48
○NSname02.cssv.jp2015-08-14 → 2020-09-18 · 4 obs
● 2020-09-18 17:39:10
○ 2026-02-22 11:44:12
○ 2026-07-05 00:37:48
●NSns1.xserver.jp2026-02-22 → 2026-07-05 · 3 obs
● 2026-02-22 11:44:12
● 2026-07-05 00:37:48
●NSns2.xserver.jp2026-02-22 → 2026-07-05 · 3 obs
● 2026-02-22 11:44:12
● 2026-07-05 00:37:48
●NSns3.xserver.jp2026-02-22 → 2026-07-05 · 3 obs
● 2026-02-22 11:44:12
● 2026-07-05 00:37:48
●NSns4.xserver.jp2026-02-22 → 2026-07-05 · 3 obs
● 2026-02-22 11:44:12
● 2026-07-05 00:37:48
●NSns5.xserver.jp2026-02-22 → 2026-07-05 · 3 obs
● 2026-02-22 11:44:12
● 2026-07-05 00:37:48
○MXms010s.new-core.com2015-08-14 → 2020-09-18 · 4 obs
● 2020-09-18 17:39:10
○ 2026-02-22 11:44:12
○ 2026-07-05 00:37:48
●MXoptinet.jp2026-02-22 → 2026-07-05 · 3 obs
● 2026-02-22 11:44:12
● 2026-07-05 00:37:48
●A103.141.96.862026-02-22 → 2026-07-05 · 3 obs
● 2026-02-22 11:44:12
● 2026-07-05 00:37:48
○A202.191.119.472015-08-14 → 2020-09-18 · 4 obs
● 2020-09-18 17:39:10
○ 2026-02-22 11:44:12
○ 2026-07-05 00:37:48
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp... | - |
| optinet.jp | ns2.xserver.jp, ns3.xserver.jp, ns1.xserver.jp, ns5.xserver.jp... | 11 records |
✅ Authoritative Response
Server:157.112.182.218
NS records: ns2.xserver.jp, ns3.xserver.jp, ns1.xserver.jp, ns5.xserver.jp, ns4.xserver.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for optinet.jp (unsigned zone)
⏱️ Timing
Total: 813ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 103.141.96.86 |
| NS | 5 | ns2.xserver.jp, ns3.xserver.jp... |
| MX | 1 | optinet.jp (pri: 0) |
| TXT | 1 | v=spf1 +a:sv10725.xserver.jp +a:optinet. |
| SOA | 1 | ns1.xserver.jp root.xserver.jp |
📌 Glue Records Collected
Total: 11
Out-of-bailiwick: 11 (ns5.xserver.jp, ns5.xserver.jp, ns5.xserver.jp...)
Analysis
Mail Server Role
optinet.jp is listed as a mail server for itself.
IP Addresses
optinet.jp resolves to one IP address: 103.141.96.86.
morihouse.com, hamsashawls.com, kanamori-system.co.jp and two other host names share IP numbers with optinet.jp.
Name Servers
optinet.jp has five name servers, which are ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp and two others.
optinet.jp partially shares its NS delegation with several other domains, including usa-blog.com, r2box.net, ishiguroen.co.jp and two others.
These name servers are regularly seen alongside ns4.xserver.jp and ns5.xserver.jp as name servers.
Hostnames that resolve to three IP addresses:
The hostname ns1.xserver.jp points to 202.226.36.164, 202.226.36.170 and 202.226.36.246.
The hostname ns4.xserver.jp points to 183.90.224.226, 183.90.224.230 and 202.226.39.247.
The hostname ns5.xserver.jp points to 157.112.182.218, 157.112.182.220 and 202.226.37.247.
Hosts with just one IP address:
The hostname ns2.xserver.jp resolves to 35.72.43.26.
The hostname ns3.xserver.jp resolves to 202.226.36.247.
Mail Servers
Mail for optinet.jp is handled by one mail server — optinet.jp.
optinet.jp carries a single IP number, which is 103.141.96.86.