atj.co.jp - robtex.com

atj.co.jp

DNSSEC⚠️ Not signed
A216.230.253.83🇺🇸 PSPinc216.230.248.0/21 Pacific Software Publishing, Inc. 1404 140th Place NE Bellevue WA 98007 US
PTRwebltw83.alpha-mail.jp
NSkotetsu.alpha-lt.net ⭐
A157.205.252.6🇯🇵 AICS157.205.0.0/16 PACNET (proxy-registered route object)
PTRamdns01.alpha-mail.jp
NSamdns03.alpha-mail.jp
A216.230.254.112🇺🇸 PSPinc216.230.248.0/21 Pacific Software Publishing, Inc. 1404 140th Place NE Bellevue WA 98007 US
PTRamdns03.alpha-mail.jp
NStsukuba.aics.ne.jp
A157.205.252.7🇯🇵 AICS157.205.0.0/16 PACNET (proxy-registered route object)
PTRamdns02.alpha-mail.jp
MXampub01.alpha-mail.net ⭐
A216.230.254.1🇺🇸 PSPinc216.230.248.0/21 Pacific Software Publishing, Inc. 1404 140th Place NE Bellevue WA 98007 US
MXampub02.alpha-mail.net ⭐
A216.230.254.2🇺🇸 PSPinc216.230.248.0/21 Pacific Software Publishing, Inc. 1404 140th Place NE Bellevue WA 98007 US
PTRampub02.alpha-mail.net
MXampub03.alpha-mail.net ⭐
A216.230.254.3🇺🇸 PSPinc216.230.248.0/21 Pacific Software Publishing, Inc. 1404 140th Place NE Bellevue WA 98007 US
MXampub04.alpha-mail.net(50)
A216.230.254.4🇺🇸 PSPinc216.230.248.0/21 Pacific Software Publishing, Inc. 1404 140th Place NE Bellevue WA 98007 US
PTRampub04.alpha-mail.net
TXTv=spf1 ip4:157.205.202.0/24 ip4:157.205.203.128/25 ip4:216.230.250.0/24 ip4:2...
SOAkotetsu.alpha-lt.netpostmaster@alpha-web.ne.jp 2023-07-21 #0

co.jp

DNSSEC⚠️ Not signed
TXTco.jp.
WOT: SAFE (61/100)
WOT: SAFE (58/100)

Same first word

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DNS History

9 records (8 active, 1 former)

20162017201820192020202120222023202420252026NSamdns03.alpha-mail.jpkotetsu.alpha-lt.nettsukuba.aics.ne.jpMXampub01.alpha-mail.netampub02.alpha-mail.netampub03.alpha-mail.netampub04.alpha-mail.netA216.230.253.83216.230.250.157
●NSamdns03.alpha-mail.jp2026-06-27 → 2026-07-19 · 3 obs
○ 2015-08-25 09:44:14
● 2026-06-27 13:14:06
● 2026-07-19 13:28:30
●NSkotetsu.alpha-lt.net2015-08-25 → 2026-07-19 · 2 obs
● 2015-08-25 09:44:14
● 2026-07-19 13:28:30
●NStsukuba.aics.ne.jp2015-08-25 → 2026-07-19 · 2 obs
● 2015-08-25 09:44:14
● 2026-07-19 13:28:30
●MXampub01.alpha-mail.net2015-08-25 → 2026-07-19 · 2 obs
● 2015-08-25 09:44:14
● 2026-07-19 13:28:30
●MXampub02.alpha-mail.net2015-08-25 → 2026-07-19 · 2 obs
● 2015-08-25 09:44:14
● 2026-07-19 13:28:30
●MXampub03.alpha-mail.net2015-08-25 → 2026-07-19 · 2 obs
● 2015-08-25 09:44:14
● 2026-07-19 13:28:30
●MXampub04.alpha-mail.net2026-06-27 → 2026-07-19 · 3 obs
○ 2015-08-25 09:44:14
● 2026-06-27 13:14:06
● 2026-07-19 13:28:30
○A216.230.250.1572015-08-25 → 2017-04-08 · 4 obs
● 2015-08-25 09:44:14
● 2017-04-08 06:47:48
○ 2026-06-27 13:14:06
○ 2026-07-19 13:28:30
●A216.230.253.832026-06-27 → 2026-07-19 · 3 obs
○ 2017-04-08 06:47:48
● 2026-06-27 13:14:06
● 2026-07-19 13:28:30

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
jpe.dns.jp, f.dns.jp, c.dns.jp, h.dns.jp...-
atj.co.jptsukuba.aics.ne.jp, amdns03.alpha-mail.jp, kotetsu.alpha-lt.net1 record

✅ Authoritative Response

Server:157.205.252.7

NS records: tsukuba.aics.ne.jp, amdns03.alpha-mail.jp, kotetsu.alpha-lt.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for atj.co.jp (unsigned zone)

⏱️ Timing

Total: 1443ms | Queries: -

📄 Records

TypeCountSample Data
A1216.230.253.83
NS3kotetsu.alpha-lt.net, amdns03.alpha-mail.jp...
MX4ampub02.alpha-mail.net (pri: 10), ampub03.alpha-mail.net (pri: 10)...
TXT1v=spf1 ip4:157.205.202.0/24 ip4:157.205.
SOA1kotetsu.alpha-lt.net postmaster.alpha-we

📌 Glue Records Collected

Total: 1

Out-of-bailiwick: 1 (amdns03.alpha-mail.jp)

Analysis

IP Addresses

atj.co.jp points to a single IP number: 216.230.253.83.

Additional host names — sunsweet.co.jp, threeedge.jp, hadabesso.com and two others — share IP numbers with atj.co.jp.

Name Servers

atj.co.jp is delegated to three name servers: amdns03.alpha-mail.jp, kotetsu.alpha-lt.net and tsukuba.aics.ne.jp.

atj.co.jp shares at least some of its name servers with other domains, including nbsk.net, tokken.jp, 11-20.jp and two others.

amdns03.alpha-mail.jp, kotetsu.alpha-lt.net and tsukuba.aics.ne.jp each resolve to a single IP address: amdns03.alpha-mail.jp resolves to 216.230.254.112, kotetsu.alpha-lt.net resolves to 157.205.252.6 and tsukuba.aics.ne.jp resolves to 157.205.252.7.

Mail Servers

Four mail servers handle email for atj.co.jp: ampub01.alpha-mail.net, ampub02.alpha-mail.net, ampub03.alpha-mail.net and ampub04.alpha-mail.net.

atj.co.jp shares mail servers — at least in part — with other domains, including sssystem.co.jp, tigges.co.jp, wagonsale.jp and two others.

ampub01.alpha-mail.net, ampub02.alpha-mail.net, ampub03.alpha-mail.net and ampub04.alpha-mail.net each resolve to one IP address: ampub01.alpha-mail.net resolves to 216.230.254.1, ampub02.alpha-mail.net resolves to 216.230.254.2, ampub03.alpha-mail.net resolves to 216.230.254.3 and ampub04.alpha-mail.net resolves to 216.230.254.4.