mail.firstbrain.jp - robtex.com

mail.firstbrain.jp

DNSSEC⚠️ Not signed
A118.27.100.208🇯🇵 GMO-INTERNET118.27.100.0/24 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan
PTRmail56.onamae.ne.jp

firstbrain.jp

DNSSEC⚠️ Not signed
A118.27.99.22🇯🇵 GMO-INTERNET118.27.99.0/24 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan
NSns-rs1.gmoserver.jp ⭐
NSns-rs2.gmoserver.jp
MXmail56.onamae.ne.jp ⭐
TXTv=spf1 include:_spf.onamae.ne.jp ~all
SOAns-rs1.gmoserver.jphostmaster@gmoserver.jp serial=1648533881

Previously MX for

firstbrain.jp

Same first word

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DNS History

2 records (1 active, 1 former)

20162017201820192020202120222023202420252026A118.27.100.208153.122.2.105
●A118.27.100.2082026-03-27 → 2026-03-27 · 3 obs
○ 2016-08-10 07:03:36
● 2026-03-27 08:47:26
● 2026-03-27 08:47:28
○A153.122.2.1052015-07-14 → 2016-08-10 · 4 obs
● 2015-07-14 22:33:38
● 2016-08-10 07:03:36
○ 2026-03-27 08:47:26
○ 2026-03-27 08:47:28

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
jpe.dns.jp, g.dns.jp, c.dns.jp, a.dns.jp...-
firstbrain.jpns-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: 1435ms | Queries: -

📄 Records

TypeCountSample Data
A1118.27.100.208

Analysis

IP Addresses

mail.firstbrain.jp maps to IP address 118.27.100.208.

Other host names, for instance mail.al-shop.net, mail.ks-factory08.com, mail.koichiandmaki.com, mail.craftmarche.com and mail.e-teraden.com share IP numbers with mail.firstbrain.jp.