opensolution.jp - robtex.com
opensolution.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 160.251.151.170🇯🇵 GMOOSK-NET160.251.151.0/24 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan | ||||||
| PTR | s351.xrea.com | ||||||
| NS | ns1.value-domain.com ⭐ | ||||||
| A | 172.64.52.38🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | ns2.value-domain.com | ||||||
| A | 172.64.53.3🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | ns3.value-domain.com ⚠️ Not in zone NS records | ||||||
| A | 172.64.52.38🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| MX | opensolution.jp ⭐ | ||||||
| A | 160.251.151.170🇯🇵 GMOOSK-NET160.251.151.0/24 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan | ||||||
| PTR | s351.xrea.com | ||||||
| TXT | v=spf1 ip4:160.251.151.170 include:mxr.valueserver.jp ~all | ||||||
| SOA | ns1.value-domain.comhostmaster@opensolution.jp 2025-06-17 #17 | ||||||
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=1794065403 | ||||||
MX for
opensolution.jp |
Same first word
Similar names
Previous names
Next names
DNS History
6 records (5 active, 1 former)
●NSns1.value-domain.com2015-08-10 → 2026-11-07 · 2 obs
● 2026-11-07 16:19:42
●NSns2.value-domain.com2015-08-10 → 2026-11-07 · 2 obs
● 2026-11-07 16:19:42
●NSns3.value-domain.com2026-08-21 → 2026-11-07 · 3 obs
● 2026-08-21 23:24:48
● 2026-11-07 16:19:42
●MXopensolution.jp2015-08-10 → 2026-11-07 · 2 obs
● 2026-11-07 16:19:42
●A160.251.151.1702026-08-21 → 2026-11-07 · 3 obs
● 2026-08-21 23:24:48
● 2026-11-07 16:19:42
○A202.172.26.102015-08-10 → 2017-03-24 · 4 obs
● 2017-03-24 06:08:54
○ 2026-08-21 23:24:48
○ 2026-11-07 16:19:42
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | e.dns.jp, g.dns.jp, c.dns.jp, a.dns.jp... | - |
| opensolution.jp | ns1.value-domain.com, ns2.value-domain.com, ns3.value-domain.com | - |
✅ Authoritative Response
Server:172.64.52.38
NS records: ns1.value-domain.com, ns2.value-domain.com, ns3.value-domain.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for opensolution.jp (unsigned zone)
⏱️ Timing
Total: 1286ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 160.251.151.170 |
| NS | 2 | ns2.value-domain.com, ns1.value-domain.com |
| MX | 1 | opensolution.jp (pri: 10) |
| TXT | 1 | v=spf1 ip4:160.251.151.170 include:mxr.v |
| SOA | 1 | ns1.value-domain.com hostmaster.opensolu |
Analysis
Mail Server Role
opensolution.jp is listed as a mail server for itself.
IP Addresses
opensolution.jp resolves to one IP address: 160.251.151.170.
mail.t-icho.com, hfyk.net, jamlk.com and two other host names share IP numbers with opensolution.jp.
Name Servers
opensolution.jp is delegated to three name servers: ns1.value-domain.com, ns2.value-domain.com and ns3.value-domain.com.
opensolution.jp has at least partial name server overlap with other domains, such as zundamochi.site, fx-ten.jp, 01leader.tokyo and two others.
It is common to find these name servers alongside the name servers ns4.value-domain.com, ns5.value-domain.com, ns11.value-domain.com and two others.
Three hostnames, each with one IP address: ns1.value-domain.com points to 172.64.52.38, ns2.value-domain.com points to 172.64.53.3 and ns3.value-domain.com points to 172.64.52.38. Note that ns1.value-domain.com and ns3.value-domain.com share the same IP.
ns1.value-domain.com and ns3.value-domain.com are host names that each point to 172.64.52.38 IP addresses.
Mail Servers
Mail for opensolution.jp is handled by one mail server — opensolution.jp.
opensolution.jp resolves to a single IP number: 160.251.151.170.