firstbrain.jp - robtex.com
firstbrain.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 118.27.99.22🇯🇵 GMO-INTERNET118.27.99.0/24 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan | ||||||
| PTR | www112.onamae.ne.jp | ||||||
| NS | ns-rs1.gmoserver.jp ⭐ | ||||||
| A | 157.7.32.87🇯🇵 GMO-DNS157.7.32.0/24 GMO Internet,inc. Network-Team. | ||||||
| PTR | ns-rs1.gmoserver.jp | ||||||
| NS | ns-rs2.gmoserver.jp | ||||||
| A | 157.7.33.87🇯🇵 GMO-DNS157.7.33.0/24 GMO Internet,inc. Network-Team. | ||||||
| PTR | ns-rs2.gmoserver.jp | ||||||
| MX | mail56.onamae.ne.jp ⭐ | ||||||
| A | 118.27.100.208🇯🇵 GMO-INTERNET118.27.100.0/24 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan | ||||||
| PTR | mail56.onamae.ne.jp | ||||||
| TXT | v=spf1 include:_spf.onamae.ne.jp ~all | ||||||
| SOA | ns-rs1.gmoserver.jphostmaster@gmoserver.jp serial=1648533881 | ||||||
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=1774568702 | ||||||
Same first word
firstbrain.net |
firstbrain.jp |
firstbrain.co.jp |
Similar names
DNS History
8 records (4 active, 4 former)
●NSns-rs1.gmoserver.jp2026-02-18 → 2026-03-27 · 3 obs
● 2026-02-18 06:09:22
● 2026-03-27 00:07:42
●NSns-rs2.gmoserver.jp2026-02-18 → 2026-03-27 · 3 obs
● 2026-02-18 06:09:22
● 2026-03-27 00:07:42
○NSns.firstbrain.jp2015-07-24 → 2016-12-17 · 5 obs
● 2015-07-24 16:36:36
● 2016-12-17 11:38:12
○ 2026-02-18 06:09:22
○ 2026-03-27 00:07:42
○NSns2.firstbrain.jp2015-07-24 → 2016-12-17 · 5 obs
● 2015-07-24 16:36:36
● 2016-12-17 11:38:12
○ 2026-02-18 06:09:22
○ 2026-03-27 00:07:42
○MXmail.firstbrain.jp2015-07-24 → 2016-12-17 · 5 obs
● 2015-07-24 16:36:36
● 2016-12-17 11:38:12
○ 2026-02-18 06:09:22
○ 2026-03-27 00:07:42
●MXmail56.onamae.ne.jp2026-02-18 → 2026-03-27 · 3 obs
● 2026-02-18 06:09:22
● 2026-03-27 00:07:42
●A118.27.99.222026-02-18 → 2026-03-27 · 3 obs
● 2026-02-18 06:09:22
● 2026-03-27 00:07:42
○A153.122.2.1052015-07-24 → 2016-12-17 · 5 obs
● 2015-07-24 16:36:36
● 2016-12-17 11:38:12
○ 2026-02-18 06:09:22
○ 2026-03-27 00:07:42
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp... | - |
| firstbrain.jp | ns-rs1.gmoserver.jp, ns-rs2.gmoserver.jp | - |
✅ Authoritative Response
Server:157.7.32.87
NS records: ns-rs1.gmoserver.jp, ns-rs2.gmoserver.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for firstbrain.jp (unsigned zone)
⏱️ Timing
Total: 1599ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 118.27.99.22 |
| NS | 2 | ns-rs1.gmoserver.jp, ns-rs2.gmoserver.jp |
| MX | 1 | mail56.onamae.ne.jp (pri: 10) |
| TXT | 1 | v=spf1 include:_spf.onamae.ne.jp ~all |
| SOA | 1 | ns-rs1.gmoserver.jp hostmaster.gmoserver |
Analysis
IP Addresses
firstbrain.jp points to IP number 118.27.99.22.
For instance, other host names otapro.net, www.rkh.jp, skia.jp, brinis.jp and loc40.com share IP numbers with firstbrain.jp.
Name Servers
firstbrain.jp is delegated to two name servers: ns-rs1.gmoserver.jp and ns-rs2.gmoserver.jp.
firstbrain.jp uses the same name server setup as other domains such as anpachi.com, allesc.net, nosidegroup.com, fiber.email and agi.or.jp.
Host names with one IP number:
ns-rs1.gmoserver.jp points to: 157.7.32.87.
ns-rs2.gmoserver.jp points to: 157.7.33.87.
Mail Servers
firstbrain.jp is handled by a single mail server, mail56.onamae.ne.jp.
firstbrain.jp shares the same mail server setup as other domains, for instance masago.com, raidensha.com, cococarenote.com, showaj.com and i-koubou.com.
firstbrain.jp shares mail servers with other domains at least partially; for instance ranhou.net, nikugen.jp, cent-g.com, fsgip.com and fabs.jp.
mail56.onamae.ne.jp points to a single IP: 118.27.100.208.