step1.co.jp - robtex.com

step1.co.jp

DNSSEC⚠️ Not signed
A216.230.253.73🇺🇸 PSPinc216.230.248.0/21 Pacific Software Publishing, Inc. 1404 140th Place NE Bellevue WA 98007 US
PTRwebltw73.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
PTRampub01.alpha-mail.net
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
PTRampub03.alpha-mail.net
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 2023-08-02 #8

co.jp

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

Same first word

step1.ro
step1.dk
step1.sh
step1.ru
step1.it
step1.org
step1.biz
step1.de
step1.ch
step1.jp
step1.com
step1.co.kr
step1.coach
step1.com.au
step1.co.jp
step1.eu
step1.net
step1.fr
step1.ca

Similar names

pest1.com
pets1.cn
1step.hu
1step.me
1step.fr
1sept.com
1pets.ru
espt1.com
1step.in
1step.com.sa
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1step.fi
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1step.co.kr
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1pest.com
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1sept.net
1step.to
1step.io
1step.website
1step.nl
1step.cz
1pets.de
1step.my
1step.co.za
1step.se
1sept.ru
1step.net
pest1.net
ep1st.com
1step.com.cn

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.netA216.230.253.73216.230.250.186
●NSamdns03.alpha-mail.jp2026-03-26 → 2026-03-30 · 3 obs
○ 2015-07-26 05:09:06
● 2026-03-26 13:53:46
● 2026-03-30 05:33:28
●NSkotetsu.alpha-lt.net2015-07-26 → 2026-03-30 · 2 obs
● 2015-07-26 05:09:06
● 2026-03-30 05:33:28
●NStsukuba.aics.ne.jp2015-07-26 → 2026-03-30 · 2 obs
● 2015-07-26 05:09:06
● 2026-03-30 05:33:28
●MXampub01.alpha-mail.net2015-07-26 → 2026-03-30 · 2 obs
● 2015-07-26 05:09:06
● 2026-03-30 05:33:28
●MXampub02.alpha-mail.net2015-07-26 → 2026-03-30 · 2 obs
● 2015-07-26 05:09:06
● 2026-03-30 05:33:28
●MXampub03.alpha-mail.net2015-07-26 → 2026-03-30 · 2 obs
● 2015-07-26 05:09:06
● 2026-03-30 05:33:28
●MXampub04.alpha-mail.net2026-03-26 → 2026-03-30 · 3 obs
○ 2015-07-26 05:09:06
● 2026-03-26 13:53:46
● 2026-03-30 05:33:28
○A216.230.250.1862015-07-26 → 2017-04-06 · 4 obs
● 2015-07-26 05:09:06
● 2017-04-06 14:37:02
○ 2026-03-26 13:53:46
○ 2026-03-30 05:33:28
●A216.230.253.732026-03-26 → 2026-03-30 · 3 obs
○ 2017-04-06 14:37:02
● 2026-03-26 13:53:46
● 2026-03-30 05:33:28

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
jpe.dns.jp, g.dns.jp, c.dns.jp, a.dns.jp...-
step1.co.jpkotetsu.alpha-lt.net, tsukuba.aics.ne.jp, amdns03.alpha-mail.jp1 record

✅ Authoritative Response

Server:216.230.254.112

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for step1.co.jp (unsigned zone)

⏱️ Timing

Total: 2069ms | Queries: -

📄 Records

TypeCountSample Data
A1216.230.253.73
NS3tsukuba.aics.ne.jp, amdns03.alpha-mail.jp...
MX4ampub02.alpha-mail.net (pri: 10), ampub04.alpha-mail.net (pri: 50)...
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

step1.co.jp points to a single IP number: 216.230.253.73.

other host names for instance makitas.net, matsukb.com, kouei-d.jp, k-materi.com and vamos.biz share IP numbers with step1.co.jp.

Name Servers

step1.co.jp is delegated to three name servers: amdns03.alpha-mail.jp, kotetsu.alpha-lt.net and tsukuba.aics.ne.jp.

step1.co.jp at least partially shares name servers with other domains, for instance fcubic.jp, kana-kana.biz, works-mate.com, sholins.co.jp and daiwajusyo.co.jp.

Host names with one IP number:

amdns03.alpha-mail.jp points to 216.230.254.112.

kotetsu.alpha-lt.net points to 157.205.252.6.

tsukuba.aics.ne.jp points to 157.205.252.7.

Mail Servers

Four mail servers handle step1.co.jp: ampub01.alpha-mail.net, ampub02.alpha-mail.net, ampub03.alpha-mail.net and ampub04.alpha-mail.net.

step1.co.jp shares mail servers with other domains at least partially, including almt.co.jp, yamatetu.jp, oac.or.jp, taka-sei.co.jp and kenpo-parts.com.

Host names with one IP number:

ampub01.alpha-mail.net points to 216.230.254.1

ampub02.alpha-mail.net points to 216.230.254.2

ampub03.alpha-mail.net points to 216.230.254.3

ampub04.alpha-mail.net points to 216.230.254.4