jf-a.jp - robtex.com

jf-a.jp

DNSSEC⚠️ Not signed
A216.230.253.86🇺🇸 PSPinc216.230.248.0/21 Pacific Software Publishing, Inc. 1404 140th Place NE Bellevue WA 98007 US
PTRwebltw86.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 #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=1774401303
WOT: SAFE (61/100)

Same first word

jf-a.jp

Similar names

j-fa.co.jp
f-aj.com
j-af.com
j-fa.com
j-fa.de
a-fj.com
af-j.com

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.netA216.230.253.86216.230.251.99
●NSamdns03.alpha-mail.jp2026-02-25 → 2026-03-25 · 3 obs
○ 2015-05-18 12:44:20
● 2026-02-25 10:20:10
● 2026-03-25 01:28:02
●NSkotetsu.alpha-lt.net2015-05-18 → 2026-03-25 · 2 obs
● 2015-05-18 12:44:20
● 2026-03-25 01:28:02
●NStsukuba.aics.ne.jp2015-05-18 → 2026-03-25 · 2 obs
● 2015-05-18 12:44:20
● 2026-03-25 01:28:02
●MXampub01.alpha-mail.net2015-05-18 → 2026-03-25 · 2 obs
● 2015-05-18 12:44:20
● 2026-03-25 01:28:02
●MXampub02.alpha-mail.net2015-05-18 → 2026-03-25 · 2 obs
● 2015-05-18 12:44:20
● 2026-03-25 01:28:02
●MXampub03.alpha-mail.net2015-05-18 → 2026-03-25 · 2 obs
● 2015-05-18 12:44:20
● 2026-03-25 01:28:02
●MXampub04.alpha-mail.net2026-02-25 → 2026-03-25 · 3 obs
○ 2015-05-18 12:44:20
● 2026-02-25 10:20:10
● 2026-03-25 01:28:02
○A216.230.251.992015-05-18 → 2016-07-20 · 4 obs
● 2015-05-18 12:44:20
● 2016-07-20 13:50:26
○ 2026-02-25 10:20:10
○ 2026-03-25 01:28:02
●A216.230.253.862026-02-25 → 2026-03-25 · 3 obs
○ 2016-07-20 13:50:26
● 2026-02-25 10:20:10
● 2026-03-25 01:28:02

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
jpa.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp...-
jf-a.jpamdns03.alpha-mail.jp, kotetsu.alpha-lt.net, tsukuba.aics.ne.jp1 record

✅ Authoritative Response

Server:157.205.252.6

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for jf-a.jp (unsigned zone)

⏱️ Timing

Total: 1427ms | Queries: -

📄 Records

TypeCountSample Data
A1216.230.253.86
NS3tsukuba.aics.ne.jp, amdns03.alpha-mail.jp...
MX4ampub03.alpha-mail.net (pri: 10), ampub02.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

jf-a.jp points to a single IP address: 216.230.253.86.

Other host names such as fuseken.co.jp, www.mi-center.jp, iris-c.jp, proud-realestate.co.jp and inn-izu.jp share IPs with jf-a.jp.

Name Servers

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

jf-a.jp at least partially shares name servers with other domains, for example wakou-s.co.jp, life-crea.co.jp, microace-arii.co.jp, km-consulting.co.jp and jwaa.jp.

Host names with a single IP address:

amdns03.alpha-mail.jp resolves to 216.230.254.112.

kotetsu.alpha-lt.net resolves to 157.205.252.6.

tsukuba.aics.ne.jp resolves to 157.205.252.7.

Mail Servers

jf-a.jp is served by four mail servers: ampub01.alpha-mail.net, ampub02.alpha-mail.net, ampub03.alpha-mail.net and ampub04.alpha-mail.net.

jf-a.jp shares at least partially some mail servers with other domains, for instance pencilmake.com, sanei-net.jp, 0096.co.jp, m-ss.co.jp and umezawa-ss.co.jp.

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