a2b.co.jp - robtex.com

a2b.co.jp

DNSSEC⚠️ Not signed
A202.226.37.2🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
PTRsv50.xserver.jp
NSns1.xserver.jp ⭐
A202.226.36.164🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
A202.226.36.170🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
A202.226.36.246🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
PTRns1.xserver.jp
NSns2.xserver.jp
A35.72.43.26🇯🇵 Amazon35.72.0.0/13 EC2 NRT prefix
PTRns2.xserver.jp
NSns3.xserver.jp ⚠️ Not in parent delegation
A202.226.36.247🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
PTRns3.xserver.jp
NSns4.xserver.jp ⚠️ Not in parent delegation
A183.90.224.226🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc.
A183.90.224.230🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc.
A202.226.39.247🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
PTRns4.xserver.jp
NSns5.xserver.jp ⚠️ Not in parent delegation
A157.112.182.218🇯🇵 XSERVER-AS157.112.176.0/21 XSERVER Inc.
A157.112.182.220🇯🇵 XSERVER-AS157.112.176.0/21 XSERVER Inc.
A202.226.37.247🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
PTRns5.xserver.jp
MXaspmx2.l.google.com ⭐
MXalt1.aspmx.l.google.com(5)
A2800:3f0:4003:c0f::1a🇨🇱 Google2800:3f0:4003::/48
A108.177.123.27🇺🇸 Google108.177.123.0/24
PTRlcscld-in-f27.1e100.net
MXalt2.aspmx.l.google.com(5)
A2a00:1450:400b:c02::1a🇮🇪 Google2a00:1450:400b::/48
PTRdj-in-f26.1e100.net
A172.253.116.27🇺🇸 Google172.253.116.0/24
PTRdj-in-f27.1e100.net
MXaspmx.l.google.com(10)
A2607:f8b0:4023:c0d::1b🇺🇸 Google2607:f8b0::/32
PTRdl-in-f27.1e100.net
A74.125.137.26🇺🇸 Google74.125.137.0/24
PTRdy-in-f26.1e100.net
MXaspmx3.l.google.com(10)
MXaspmx4.l.google.com(10)
MXaspmx5.l.google.com(10)
TXTv=spf1 +a:sv50.xserver.jp +a:a2b.co.jp +mx include:spf.sender.xserver.jp ~all
SOAns1.xserver.jproot@sv0.xserver.jp serial=0

co.jp

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

Same first word

a2b.network
a2b.com.au
a2b.im
a2b.jp
a2b.at
a2b.ac.id
a2b.ba
a2b.enterprises
a2b.biz
a2b.su
a2b.nu
a2b.limo
a2b.consulting
a2b.dk
a2b.be
a2b.vn
a2b.lv
a2b.help
a2b.es
a2b.graphics
a2b.ru
a2b.church
a2b.se
a2b.eu
a2b.direct
a2b.lt
a2b.in
a2b.cc
a2b.me
a2b.org.cn
a2b.de
a2b.srl
a2b.today
a2b.pw
a2b.fi
a2b.org.uk
a2b.net.au
a2b.co.jp
a2b.co.nz
a2b.com
a2b.com.ua
a2b.us
a2b.net
a2b.org.au
a2b.ph
a2b.sk
a2b.world
a2b.dev
a2b.site
a2b.bike
a2b.nl
a2b.gr
a2b.ie

Similar names

b2a.kz
ab2.com
ab2.co.uk
2ab.nl
ab2.es
ba2.cc
2ab.fr
2ba.net
ba2.org
b2a.ch
ab2.in
b2a.net
b2a.ru
2ba.ru
2ab.eu
b2a.org
b2a.us
ba2.dk
2ba.cc
2ba.de
ba2.me
b2a.de
ab2.be
b2a.hk
b2a.info
b2a.online
b2a.co
b2a.it
2ba.fr
b2a.top
ab2.life
b2a.eu
ab2.tech
ba2.cn
ab2.me
ab2.ru
ab2.net
2ba.su
2ab.org
ab2.agency
ab2.co
ab2.it
b2a.be
2ab.com
ba2.com
b2a.at
2ba.com
b2a.com
ba2.co
2ba.co
2ba.com.mx
2ba.nl
ba2.mobi
b2a.fr
ab2.eu
ab2.cc
2ab.it
b2a.se
ab2.info
2ba.jp
2ab.ca

DNS History

14 records (13 active, 1 former)

201820192020202120222023202420252026NSns1.xserver.jpns2.xserver.jpns3.xserver.jpns4.xserver.jpns5.xserver.jpMXalt1.aspmx.l.google.comalt2.aspmx.l.google.comaspmx.l.google.comaspmx2.l.google.comaspmx3.l.google.comaspmx4.l.google.comaspmx5.l.google.comA202.226.37.2210.188.201.2
●NSns1.xserver.jp2017-01-28 → 2026-04-26 · 2 obs
● 2017-01-28 13:32:52
● 2026-04-26 01:18:00
●NSns2.xserver.jp2017-01-28 → 2026-04-26 · 2 obs
● 2017-01-28 13:32:52
● 2026-04-26 01:18:00
●NSns3.xserver.jp2017-01-28 → 2026-04-26 · 2 obs
● 2017-01-28 13:32:52
● 2026-04-26 01:18:00
●NSns4.xserver.jp2017-01-28 → 2026-04-26 · 2 obs
● 2017-01-28 13:32:52
● 2026-04-26 01:18:00
●NSns5.xserver.jp2017-01-28 → 2026-04-26 · 2 obs
● 2017-01-28 13:32:52
● 2026-04-26 01:18:00
●MXalt1.aspmx.l.google.com2017-01-28 → 2026-04-26 · 2 obs
● 2017-01-28 13:32:52
● 2026-04-26 01:18:00
●MXalt2.aspmx.l.google.com2017-01-28 → 2026-04-26 · 2 obs
● 2017-01-28 13:32:52
● 2026-04-26 01:18:00
●MXaspmx.l.google.com2017-01-28 → 2026-04-26 · 2 obs
● 2017-01-28 13:32:52
● 2026-04-26 01:18:00
●MXaspmx2.l.google.com2017-01-28 → 2026-04-26 · 2 obs
● 2017-01-28 13:32:52
● 2026-04-26 01:18:00
●MXaspmx3.l.google.com2017-01-28 → 2026-04-26 · 2 obs
● 2017-01-28 13:32:52
● 2026-04-26 01:18:00
●MXaspmx4.l.google.com2017-01-28 → 2026-04-26 · 2 obs
● 2017-01-28 13:32:52
● 2026-04-26 01:18:00
●MXaspmx5.l.google.com2017-01-28 → 2026-04-26 · 2 obs
● 2017-01-28 13:32:52
● 2026-04-26 01:18:00
●A202.226.37.22026-04-21 → 2026-04-26 · 3 obs
○ 2017-01-28 13:32:52
● 2026-04-21 22:02:32
● 2026-04-26 01:18:00
○A210.188.201.22017-01-28 → 2017-01-28 · 3 obs
● 2017-01-28 13:32:52
○ 2026-04-21 22:02:32
○ 2026-04-26 01:18:00

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
jpf.dns.jp, b.dns.jp, h.dns.jp, c.dns.jp...-
a2b.co.jpns1.xserver.jp, ns2.xserver.jp4 records

✅ Authoritative Response

Server:202.226.36.164

NS records: ns1.xserver.jp, ns2.xserver.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for a2b.co.jp (unsigned zone)

⏱️ Timing

Total: 1065ms | Queries: -

📄 Records

TypeCountSample Data
A1202.226.37.2
NS5ns5.xserver.jp, ns4.xserver.jp...
MX7alt2.aspmx.l.google.com (pri: 5), aspmx3.l.google.com (pri: 10)...
TXT1v=spf1 +a:sv50.xserver.jp +a:a2b.co.jp +
SOA1ns1.xserver.jp root.sv0.xserver.jp

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns1.xserver.jp, ns1.xserver.jp, ns1.xserver.jp...)

Analysis

IP Addresses

a2b.co.jp points to a single IP address: 202.226.37.2.

Other host names such as asunaro-home.co.jp, eco-bugyo.jp, nishiwaki.lions-c.net, poicommunity.com and treeofheart.com share IPs with a2b.co.jp.

Name Servers

a2b.co.jp is delegated to five name servers: ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp and ns5.xserver.jp.

a2b.co.jp at least partially shares name servers with other domains, for example aflax.org, activegroup.jp, tan5.info, icion.co.jp and wspv.net.

Three IP numbers:

ns1.xserver.jp points to: 202.226.36.164, 202.226.36.170 and 202.226.36.246

ns4.xserver.jp points to: 183.90.224.226, 183.90.224.230 and 202.226.39.247

ns5.xserver.jp points to: 157.112.182.218, 157.112.182.220 and 202.226.37.247

One IP number:

ns2.xserver.jp points to: 35.72.43.26

ns3.xserver.jp points to: 202.226.36.247

Mail Servers

Seven mail servers handle a2b.co.jp: aspmx2.l.google.com, aspmx3.l.google.com, aspmx4.l.google.com, aspmx5.l.google.com, aspmx.l.google.com, alt1.aspmx.l.google.com and alt2.aspmx.l.google.com.

a2b.co.jp shares at least partially some mail servers with other domains, for instance ns500698.ns500758.ns500758.ns500698.ns500698.ns500736.ns500735.ns500735.ns500576.ns500708.ns500698.ns500686.ns500652.ns500619.ns500619.trackreceptor.com, ns500758.ns500759.ns500698.ns500758.ns500759.ns500735.ns500698.ns500698.ns500708.ns500576.ns500576.ns500576.ns500619.ns500652.trackreceptor.com, ns500699.ns500734.ns500699.ns500693.ns500693.ns500734.ns500734.ns500588.ns500588.ns500588.ns500699.ns500612.ns500588.ns500588.ns500612.ns500588.ns500588.dtrkdll.com, ns500754.ns500731.ns500671.ns500731.ns500688.ns500688.ns500671.ns500688.ns500688.ns500649.ns500671.ns500291.ns500291.ns500131.lustychickser.com and ns500758.ns500698.ns500759.ns500735.ns500736.ns500735.ns500735.ns500698.ns500698.ns500576.ns500708.ns500652.ns500619.ns500619.trackreceptor.com.

These mail servers commonly pair with alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com, aspmx3.googlemail.com and aspmx1.l.google.com.

Host names with two IP numbers:

aspmx.l.google.com points to 2607:f8b0:4023:c0d::1b and 74.125.137.26

alt1.aspmx.l.google.com points to 2800:3f0:4003:c0f::1a and 108.177.123.27

alt2.aspmx.l.google.com points to 2a00:1450:400b:c02::1a and 172.253.116.27