`mx.opt-system.com`

	DNSSEC	⚠️ Not signed
	A	210.134.168.66^{🇯🇵 FINE210.134.160.0/19 PACNET (proxy-registered route object)}

`opt-system.com`

	DNSSEC	⚠️ Not signed
	A	210.134.168.3^{🇯🇵 FINE210.134.160.0/19 PACNET (proxy-registered route object)}
	NS	`ns1.canonet.ne.jp` ⭐
	NS	`ns2.canonet.ne.jp`
	MX	`mx.opt-system.com` ⭐
	TXT	`v=spf1 include:spf01.canonet.ne.jp include:spf10.canonet.ne.jp ~all`
	SOA	`ns1.canonet.ne.jp`postmaster@opt-system.com serial=2260617001

MX for

opt-system.com

Same first word

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.tc

mx.microsoft

mx.solutions

mx.ph

mx.st

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.ag

mx.ee

mx.net.ru

mx.ae

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.hn

mx.com.co

mx.nl

mx.com

mx.canva-apps.cn

mx.al

mx

mx.org

mx.net.au

mx.berlin

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.od.ua

mx.su

mx.com.au

mx.123hjemmeside.no

mx.cl

mx.by

mx.tm

mx.main.jp

mx.bplaced.net

mx.uy

mx.dyndns-mail.com

mx.io

mx.co.ke

mx.vg

mx.gp

mx.cloudaccess.net

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

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

mx.biz

mx.ms

mx.net.tr

mx.network

mx.se.gov.br

mx.gy

mx.contact

mx.pe

mx.realm.cz

mx.tn

mx.mk

mx.exchange

mx.kh.ua

mx.md

mx.to

mx.saotome.st

mx.cm

mx.graphics

mx.support

mx.myftp.org

mx.duckdns.org

Similar names

xm.de

xm.cl

xm.sk

xm.se

xm.hu

xm.com.co

xm.hl.cn

xm.africa

xm.fi

xm.is

xm.co.kr

xm.am

xm.money

xm.be

xm.cz

xm.hk.cn

xm.fj.cn

xm.pl

xm.vn.ua

xm.house

xm.mk

xm.la

xm.com

DNS History

3 records (1 active, 2 former)

○A210.134.165.662016-03-12 → 2016-03-12 · 4 obs

○ 2015-12-10 12:36:54
● 2016-03-12 17:34:34
○ 2026-05-07 14:36:28
○ 2026-08-03 11:26:46

●A210.134.168.662026-05-07 → 2026-08-03 · 3 obs

○ 2016-03-12 17:34:34
● 2026-05-07 14:36:28
● 2026-08-03 11:26:46

○A61.193.147.512015-08-12 → 2015-12-10 · 4 obs

● 2015-08-12 22:17:58
● 2015-12-10 12:36:54
○ 2016-03-12 17:34:34
○ 2026-08-03 11:26:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	h.gtld-servers.net, f.gtld-servers.net, l.gtld-servers.net, j.gtld-servers.net...	-
opt-system.com	ns1.canonet.ne.jp, ns2.canonet.ne.jp	-

✅ Authoritative Response

Server:210.134.168.65

NS records: ns1.canonet.ne.jp, ns2.canonet.ne.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for opt-system.com (unsigned zone)

⏱️ Timing

Total: 969ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`210.134.168.66`

Analysis

Mail Server Role

Mail for opt-system.com is routed through the mail server mx.opt-system.com.

IP Addresses

mx.opt-system.com has exactly one IP address — 210.134.168.66.

mx.tosakazouen.co.jp, mx.nsk-jp.com, mx.kitanoshimada.com plus two other host names have IP numbers in common with mx.opt-system.com.

mx.opt-system.com - dns.ninja

mx.opt-system.com

opt-system.com