mail.gen-sei.com - robtex.com

mail.gen-sei.com

CNAMEgen-sei.com
DNSSEC⚠️ Not signed
A219.94.155.234🇯🇵 SAKURA-C219.94.128.0/17 (3/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan
PTRwww444b.sakura.ne.jp
NSmaster.dns.ne.jp ⭐
A210.224.172.18🇯🇵 SAKURA-C210.224.160.0/19 (1/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan
PTRmaster.dns.ne.jp
NSns1.dns.ne.jp
A61.211.236.1🇯🇵 SAKURA-B61.211.236.0/24 (4/TOKYO) SAKURA Internet // EAST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan
PTRns1.dns.ne.jp
NSns2.dns.ne.jp
A133.167.21.1🇯🇵 SAKURA-C133.167.21.0/24 (OSAKA) SAKURA Internet // WEST JAPAN BACKBONE Grand Front Osaka Tower A 35F, 4-20 Ofukacho, Kita-ku, Osaka, Osaka 530-0011, Japan
PTRns2.dns.ne.jp
MXgen-sei.com ⭐
A219.94.155.234🇯🇵 SAKURA-C219.94.128.0/17 (3/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan
PTRwww444b.sakura.ne.jp
TXTv=spf1 a:www444b.sakura.ne.jp mx ~all
SOAmaster.dns.ne.jptech@sakura.ad.jp 2025-07-24 #2

gen-sei.com

DNSSEC⚠️ Not signed
A219.94.155.234🇯🇵 SAKURA-C219.94.128.0/17 (3/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan
NSmaster.dns.ne.jp ⭐
NSns1.dns.ne.jp
NSns2.dns.ne.jp
MXgen-sei.com ⭐
TXTv=spf1 a:www444b.sakura.ne.jp mx ~all
SOAmaster.dns.ne.jptech@sakura.ad.jp 2025-07-24 #2

Previously MX for

gen-sei.com

Same first word

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DNS History

2 records (1 active, 1 former)

20162017201820192020202120222023202420252026A211.12.196.48CNAMEgen-sei.com
○A211.12.196.482015-08-03 → 2016-05-10 · 4 obs
● 2015-08-03 21:03:34
● 2016-05-10 04:33:40
○ 2026-05-01 03:20:04
○ 2026-05-01 03:20:06
●CNAMEgen-sei.com2026-05-01 → 2026-05-01 · 2 obs
● 2026-05-01 03:20:04
● 2026-05-01 03:20:06

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
gen-sei.comns1.dns.ne.jp, ns2.dns.ne.jp-

✅ Authoritative Response

Server:133.167.21.1

NS records: ns1.dns.ne.jp, ns2.dns.ne.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for gen-sei.com (unsigned zone)

⏱️ Timing

Total: 1264ms | Queries: -

📄 Records

TypeCountSample Data
CNAME1gen-sei.com

Analysis

IP Addresses

mail.gen-sei.com points to a single IP number: 219.94.155.234.

Other host names, for instance rakudo.jp, greenhotels.co.jp, red-entertainment.co.jp, bisyuu.jp and www.min-wara.com share IP numbers with mail.gen-sei.com.

Name Servers

The delegation for mail.gen-sei.com is handled by three name servers: master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.

mail.gen-sei.com at least partially shares name servers with other domains, for instance catincat.jp, bitz.jp, www.place-map.com, orangehamster.net and clarinet-club.com.

These name servers are commonly used with the name servers dns.sakura.ad.jp.

Host names with one IP number:

master.dns.ne.jp points to 210.224.172.18.

ns1.dns.ne.jp points to 61.211.236.1.

ns2.dns.ne.jp points to 133.167.21.1.

Mail Servers

mail.gen-sei.com is handled by a single mail server, gen-sei.com.

mail.gen-sei.com uses the same mail server setup as other domains, such as gen-sei.com.

gen-sei.com points to a single IP: 219.94.155.234.