opt-system.com - dns.ninja
opt-system.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 210.134.168.3🇯🇵 FINE210.134.160.0/19 PACNET (proxy-registered route object) | ||||||
| NS | ns1.canonet.ne.jp ⭐ | ||||||
| A | 210.134.168.65🇯🇵 FINE210.134.160.0/19 PACNET (proxy-registered route object) | ||||||
| NS | ns2.canonet.ne.jp | ||||||
| A | 210.134.168.135🇯🇵 FINE210.134.160.0/19 PACNET (proxy-registered route object) | ||||||
| MX | mx.opt-system.com ⭐ | ||||||
| A | 210.134.168.66🇯🇵 FINE210.134.160.0/19 PACNET (proxy-registered route object) | ||||||
| TXT | v=spf1 include:spf01.canonet.ne.jp include:spf10.canonet.ne.jp ~all | ||||||
| SOA | ns1.canonet.ne.jppostmaster@opt-system.com serial=2260617001 | ||||||
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=1785749287 | ||||||
Subdomains
mx.opt-system.com |
Same first word
opt-system.com |
Similar names
top-system.gr |
top-system.de |
otp-system.com |
top-system.jp |
top-system.ru |
top-system.net |
top-system.com |
pot-system.com |
top-system.com.ar |
top-system.it |
DNS History
7 records (4 active, 3 former)
●NSns1.canonet.ne.jp2015-08-02 → 2026-08-03 · 2 obs
● 2026-08-03 09:53:50
●NSns2.canonet.ne.jp2015-08-02 → 2026-08-03 · 2 obs
● 2026-08-03 09:53:50
●MXmx.opt-system.com2015-08-02 → 2026-08-03 · 2 obs
● 2026-08-03 09:53:50
○A202.228.150.102015-08-02 → 2015-11-29 · 4 obs
● 2015-11-29 19:42:52
○ 2016-03-12 10:31:48
○ 2026-08-03 09:53:50
○A210.134.165.102016-03-12 → 2017-03-20 · 5 obs
● 2016-03-12 10:31:48
● 2017-03-20 20:38:44
○ 2026-03-27 18:57:26
○ 2026-08-03 09:53:50
●A210.134.168.32026-07-10 → 2026-08-03 · 3 obs
● 2026-07-10 16:30:16
● 2026-08-03 09:53:50
○A210.134.168.72026-03-27 → 2026-05-13 · 5 obs
● 2026-03-27 18:57:26
● 2026-05-13 02:10:50
○ 2026-07-10 16:30:16
○ 2026-08-03 09:53:50
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| opt-system.com | ns1.canonet.ne.jp, ns2.canonet.ne.jp | - |
✅ Authoritative Response
Server:210.134.168.65
NS records: ns1.canonet.ne.jp, ns2.canonet.ne.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for opt-system.com (unsigned zone)
⏱️ Timing
Total: 911ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 210.134.168.3 |
| NS | 2 | ns2.canonet.ne.jp, ns1.canonet.ne.jp |
| MX | 1 | mx.opt-system.com (pri: 10) |
| TXT | 1 | v=spf1 include:spf01.canonet.ne.jp inclu |
| SOA | 1 | ns1.canonet.ne.jp postmaster.opt-system. |
Analysis
Hierarchy
opt-system.com is a parent domain of mx.opt-system.com.
IP Addresses
opt-system.com has exactly one IP address — 210.134.168.3.
blue-kobo.co.jp, hokko-fukushi.or.jp, kh-online.net plus two other host names have IP numbers in common with opt-system.com.
Name Servers
Two name servers handle the delegation for opt-system.com: ns1.canonet.ne.jp and ns2.canonet.ne.jp.
The name server configuration of opt-system.com is shared with other domains, for instance n-kousei.jp, haruyama-kenma.co.jp, wakkanai-city-hospital.jp and two others.
ns1.canonet.ne.jp and ns2.canonet.ne.jp each resolve to one IP number: ns1.canonet.ne.jp points to 210.134.168.65 and ns2.canonet.ne.jp points to 210.134.168.135.
Mail Servers
opt-system.com uses one mail server — mx.opt-system.com.
mx.opt-system.com carries a single IP number, which is 210.134.168.66.