`mx.rex-system.co.jp`

DNSSEC	⚠️ Not signed
A	163.43.91.68^{🇯🇵 SAKURA-B163.43.0.0/16 (TOKYO) SAKURA Internet // EAST JAPAN BACKBONE Sakaisuji Honmachi Bldg. 9F 1-8-14 Minami-Honmachi, Chuo-ku Osaka 541-0054, Japan}
		PTR	`secure05.willnet.org`

`rex-system.co.jp`

	DNSSEC	⚠️ Not signed
	NS	`01.dnsv.jp` ⭐
	NS	`02.dnsv.jp`
	NS	`03.dnsv.jp`
	NS	`04.dnsv.jp`
	MX	`mx.rex-system.co.jp` ⭐
	TXT	`MS=1262A41DF923D4D1FCB423E48936DCF09EAC3015`
	TXT	`google-site-verification=4jTIQEiBQFNOvdyIKoroHxoKneXE7KC9X7O1AaEL4T8`
	TXT	`v=spf1 a mx include:spf01.willnet.ad.jp ~all`
	SOA	`01.dnsv.jp`hostmaster@dnsv.jp serial=1659315933

MX for

rex-system.co.jp

Same first word

mx.biz

mx.ms

mx.network

mx.se.gov.br

mx.gy

mx.pe

mx.realm.cz

mx.tn

mx.mk

mx.exchange

mx.kh.ua

mx.md

mx.to

mx.cm

mx.graphics

mx.cx

mx.support

mx.myftp.org

mx.duckdns.org

mx.kinghost.net

mx.gouv.ci

mx.money

mx.kasserver.com

mx.com.ar

mx.sytes.net

mx.center

mx.withyoutube.com

mx.mba

mx.co.uk

mx.s3-website-eu-west-1.amazonaws.com

mx.s3-website-us-east-1.amazonaws.com

mx.design

mx.s3-website-us-west-1.amazonaws.com

mx.msk.ru

mx.scrapping.cc

mx.tv

mx.casino

mx.ma

mx.dyndns.org

mx.sh

mx.ax

mx.lv

mx.abbott

mx.or.at

mx.cn

mx.servebbs.org

mx.microsoft

mx.ph

mx.myftp.biz

mx.com.tr

mx.be

mx.guru

mx.selfip.com

mx.co

mx.ro

mx.com.kz

mx.ru.net

mx.firewall-gateway.de

mx.mayfirst.org

mx.principe.st

mx.ag

mx.ee

mx.net.ru

mx.fi

mx.cz

mx.co.kr

mx.net

mx.box

mx.homelinux.com

mx.dnsalias.com

mx.se

mx.srv.br

mx.si

mx.de

mx.org.ua

mx.nl

mx.com

mx.co.ua

mx.al

mx

mx.org

mx.net.au

mx.sb

mx.sub.jp

mx.nf

mx.kg

mx.fm

mx.dk

mx.mil.lv

mx.is

mx.ac.cn

mx.uz

mx.mt

mx.lt

mx.co.at

mx.ua

mx.csb.app

mx.au

mx.go.gov.br

mx.com.mx

mx.dev

mx.su

mx.com.au

mx.123hjemmeside.no

mx.cl

mx.by

mx.bplaced.net

mx.uy

mx.dyndns-mail.com

mx.io

mx.co.ke

mx.vg

mx.gp

mx.cloudaccess.net

mx.gs

mx.global.prod.fastly.net

mx.email

mx.com.pt

mx.ru

mx.services

mx.pl

mx.ht

mx.uk

mx.no

mx.cloud.nospamproxy.com

mx.agency

mx.rs

mx.vc

mx.cloudflare.net

mx.ws

mx.plus

mx.zone

mx.co.za

mx.tours

mx.s3.amazonaws.com

mx.com.tw

mx.vu

Similar names

xm.fj.cn

xm.pl

xm.vn.ua

xm.house

xm.mk

xm.com

xm.biz

xm.media

xm.fyi

xm.pe

xm.wtf

xm.nl

xm.cn

xm.gov.cn

xm.city

xm.ca

xm.ee

xm.ae

xm.lc

xm.chat

xm.life

xm.net

xm.cm

DNS History

2 records (1 active, 1 former)

●A163.43.91.682026-02-20 → 2026-04-14 · 3 obs

○ 2015-10-27 06:19:52
● 2026-02-20 11:18:10
● 2026-04-14 10:15:56

○A210.228.48.1892015-01-28 → 2015-10-27 · 4 obs

● 2015-01-28 14:17:12
● 2015-10-27 06:19:52
○ 2026-02-20 11:18:10
○ 2026-04-14 10:15:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
jp	a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp...	-
rex-system.co.jp	04.dnsv.jp, 01.dnsv.jp, 02.dnsv.jp, 03.dnsv.jp	7 records

✅ Authoritative Response

Server:157.7.34.53

NS records: 04.dnsv.jp, 01.dnsv.jp, 02.dnsv.jp, 03.dnsv.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rex-system.co.jp (unsigned zone)

⏱️ Timing

Total: 696ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`163.43.91.68`

📌 Glue Records Collected

Total: 7

Out-of-bailiwick: 7 (01.dnsv.jp, 01.dnsv.jp, 02.dnsv.jp...)

Analysis

Mail Server Role

mx.rex-system.co.jp serves as the mail server for rex-system.co.jp.

IP Addresses

mx.rex-system.co.jp points to IP number 163.43.91.68.

For instance, other host names mx.marinejet.co.jp, secure05.willnet.org, mx.rex-mail.com, mx.rex-system.com and mx.tsubaki-law.co.jp share IP numbers with mx.rex-system.co.jp.

mx.rex-system.co.jp - robtex.com