decimo.jp - dns.ninja

decimo.jp

DNSSEC⚠️ Not signed
A216.230.253.84🇺🇸 PSPinc216.230.248.0/21 Pacific Software Publishing, Inc. 1404 140th Place NE Bellevue WA 98007 US
PTRwebltw84.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
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 2023-07-25 #0

jp

DNSSEC🔒 Signed (DS record present)
NSz.dns.jp ⭐
NSa.dns.jp
NSb.dns.jp
NSc.dns.jp
NSd.dns.jp
NSe.dns.jp
NSf.dns.jp
NSg.dns.jp
NSh.dns.jp
SOAz.dns.jproot@dns.jp serial=1784999703

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.netA216.230.253.84216.230.250.154
●NSamdns03.alpha-mail.jp2026-02-25 → 2026-07-25 · 3 obs
○ 2015-05-29 03:27:00
● 2026-02-25 10:20:06
● 2026-07-25 17:47:54
●NSkotetsu.alpha-lt.net2015-05-29 → 2026-07-25 · 2 obs
● 2015-05-29 03:27:00
● 2026-07-25 17:47:54
●NStsukuba.aics.ne.jp2015-05-29 → 2026-07-25 · 2 obs
● 2015-05-29 03:27:00
● 2026-07-25 17:47:54
●MXampub01.alpha-mail.net2015-05-29 → 2026-07-25 · 2 obs
● 2015-05-29 03:27:00
● 2026-07-25 17:47:54
●MXampub02.alpha-mail.net2015-05-29 → 2026-07-25 · 2 obs
● 2015-05-29 03:27:00
● 2026-07-25 17:47:54
●MXampub03.alpha-mail.net2015-05-29 → 2026-07-25 · 2 obs
● 2015-05-29 03:27:00
● 2026-07-25 17:47:54
●MXampub04.alpha-mail.net2020-04-12 → 2026-07-25 · 3 obs
○ 2015-05-29 03:27:00
● 2020-04-12 02:32:38
● 2026-07-25 17:47:54
○A216.230.250.1542015-05-29 → 2020-04-12 · 4 obs
● 2015-05-29 03:27:00
● 2020-04-12 02:32:38
○ 2026-02-25 10:20:06
○ 2026-07-25 17:47:54
●A216.230.253.842026-02-25 → 2026-07-25 · 3 obs
○ 2020-04-12 02:32:38
● 2026-02-25 10:20:06
● 2026-07-25 17:47:54

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
jpa.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp...-
decimo.jpkotetsu.alpha-lt.net, tsukuba.aics.ne.jp, amdns03.alpha-mail.jp1 record

✅ Authoritative Response

Server:157.205.252.6

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for decimo.jp (unsigned zone)

⏱️ Timing

Total: 3762ms | Queries: -

📄 Records

TypeCountSample Data
A1216.230.253.84
NS3amdns03.alpha-mail.jp, tsukuba.aics.ne.jp...
MX4ampub04.alpha-mail.net (pri: 50), 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

decimo.jp resolves to just one IP address, 216.230.253.84.

Two other host names, along with ebsweb.co.jp, e-khb.jp and toseikai.or.jp, also share IP numbers with decimo.jp.

Name Servers

DNS for decimo.jp is handled by three authoritative name servers: amdns03.alpha-mail.jp, kotetsu.alpha-lt.net and tsukuba.aics.ne.jp.

decimo.jp partially shares its NS delegation with several other domains, including st-noah.co.jp, nukadacpa.com, morizou-tax.com and two others.

amdns03.alpha-mail.jp, kotetsu.alpha-lt.net and tsukuba.aics.ne.jp all have one IP address each — amdns03.alpha-mail.jp directs to 216.230.254.112, kotetsu.alpha-lt.net directs to 157.205.252.6 and tsukuba.aics.ne.jp directs to 157.205.252.7.

Mail Servers

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

There is at least a partial MX overlap between decimo.jp and other domains, including kyoeisangyo.jp, jwaa.jp, jcs-corp.net and two others.

The hosts ampub01.alpha-mail.net, ampub02.alpha-mail.net, ampub03.alpha-mail.net and ampub04.alpha-mail.net all resolve to exactly one IP address each: 216.230.254.1, 216.230.254.2, 216.230.254.3 and 216.230.254.4 respectively.