`mb.coretechnology.co.jp`

DNSSEC	⚠️ Not signed
A	202.226.37.31^{🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.}
		PTR	`sv70.xserver.jp`

`coretechnology.co.jp`

	DNSSEC	⚠️ Not signed
	A	202.226.37.31^{🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.}
	NS	`ns1.xserver.jp` ⭐
	NS	`ns2.xserver.jp`
	NS	`ns3.xserver.jp`
	NS	`ns4.xserver.jp`
	NS	`ns5.xserver.jp`
	MX	`mb.coretechnology.co.jp` ⭐
	TXT	`v=spf1 +a:sv70.xserver.jp +a:coretechnology.co.jp +mx include:spf.sender.xser...`
	SOA	`ns1.xserver.jp`root@sv0.xserver.jp serial=0

MX for

coretechnology.co.jp

Same first word

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mb.al

mb.no

mb.gov.br

mb.cc

mb.expert

mb.hr

mb.capital

mb.ind.br

mb.tv

mb.co.at

mb.by

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mb.vip

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mb.sb

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mb.i234.me

mb.ru

mb.fyi

mb.biz.tr

mb.flop.jp

mb.dk

mb.selfip.com

mb.gov.tm

mb.sk

mb.gold

mb.com.kw

mb.be

mb.net

mb.nu

mb.co.uk

mb.de

mb.cn

mb.b.br

mb.si

mb.la

mb.mba

mb.media

mb.io

mb.holiday

mb.nl

mb.tel

mb.world

mb.pl

mb.vg

mb.group

mb.com

mb.s3.amazonaws.com

mb.ua

mb.wtf

mb.construction

mb.school

mb.support

mb.am

mb.rs

mb.co

mb.services

mb.or.at

mb.photos

mb.ax

mb.gov.al

mb.consulting

mb.academy

mb.bz

mb.se

mb.nfshost.com

mb.net.tr

mb.institute

mb.rentals

mb.sh

mb.blog.br

mb.tips

mb.golf

mb.cr

mb.com.mx

mb.cz

mb.kz

mb.cm

mb.cl

mb.style

mb.com.tr

mb.lv

mb.guide

mb.gov.pl

mb.ee

mb.land

mb.krakow.pl

mb.tc

mb.kg

mb.fo

mb.gmbh

mb.graphics

mb.org

mb.coach

mb.co.za

mb.rw

mb.gl

mb.to

Similar names

bm.ru

bm.co.nz

bm.com.ua

bm.no

bm.uz

bm.rzeszow.pl

bm.sa

bm.ai.vn

bm.ac

bm.digital

bm.nz

bm

bm.bytom.pl

bm.org

bm.game

bm.sc.cn

bm.tv

bm.ventures

bm.dk

bm.to

bm.kiev.ua

bm.bet

bm.land

bm.md

bm.wtf

bm.net.tr

bm.ws

bm.lv

bm.cc

bm.ua

bm.com.tr

bm.bm

bm.kg

bm.co.ke

bm.solutions

bm.pp.ru

bm.am

bm.com

bm.market

bm.hu

bm.com.sa

bm.co.th

bm.is

bm.center

bm.ink

bm.b.br

bm.ac.th

bm.fo

bm.co.id

DNS History

1 record (1 active, 0 former)

●A202.226.37.312026-02-17 → 2026-05-14 · 2 obs

● 2026-02-17 13:03:52
● 2026-05-14 05:34:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
jp	e.dns.jp, g.dns.jp, c.dns.jp, a.dns.jp...	-
coretechnology.co.jp	ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp...	11 records

✅ Authoritative Response

Server:202.226.36.247

NS records: ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp, ns5.xserver.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

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

⏱️ Timing

Total: 757ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`202.226.37.31`

📌 Glue Records Collected

Total: 11

Out-of-bailiwick: 11 (ns1.xserver.jp, ns1.xserver.jp, ns1.xserver.jp...)

Analysis

Mail Server Role

mb.coretechnology.co.jp is the mail server for coretechnology.co.jp.

IP Addresses

mb.coretechnology.co.jp resolves to one IP number: 202.226.37.31.

other host names including zero-man.com, i036.net, app.muzin.org, hottime.ws and spynk.com share IP numbers with mb.coretechnology.co.jp.

mb.coretechnology.co.jp - robtex.com