`mx.doi.su`

DNSSEC	⚠️ Not signed
A	2001:470:7240::^{🇺🇸 HURRICANE2001:470::/32 Hurricane Electric 55 South Market St San Jose, CA}
		PTR	`ipv6.cns.su`
TXT	`v=spf1 a mx -all`

`doi.su`

	DNSSEC	⚠️ Not signed
	A	2001:470:7240::^{🇺🇸 HURRICANE2001:470::/32 Hurricane Electric 55 South Market St San Jose, CA}
	A	88.198.54.22^{🇩🇪 Hetzner88.198.0.0/16 HETZNER-RZ-NBG-BLK4}
	NS	`d.ns.cns.su` ⭐ ⚠️ Not in parent delegation
	NS	`d.ns.doi.su` ⚠️ Not in parent delegation
	NS	`ns2.linode.com`
	NS	`ns4.linode.com`
	NS	`ns5.linode.com`
	MX	`mx.doi.su` ⭐
	MX	`a.mx.doi.su`⁽¹⁰⁾
	MX	`doi.su`⁽⁴⁶⁾
	MX	`s.mx.doi.su`⁽⁹⁹⁾
	TXT	`v=spf1 a mx -all`
	SOA	`d.ns.cns.su`root@cns.su 2013-02-12 #0

MX for

doi.su

Subdomains

s.mx.doi.su

a.mx.doi.su

Same first word

mx.exchange

mx.kh.ua

mx.md

mx.to

mx.cm

mx.graphics

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.tc

mx.microsoft

mx.ph

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

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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.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.tn

mx.mk

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xm.biz

xm.media

xm.fyi

xm.pe

xm.wtf

xm.nl

xm.app

xm.cn

xm.gov.cn

xm.city

xm.ca

xm.ee

xm.ae

xm.lc

xm.chat

xm.life

xm.net

xm.cm

xm.ke

xm.co

xm.com.cn

xm.co.za

xm.kiev.ua

xm.js.cn

xm.cc

xm.by

xm.world

xm.lt

xm.com.ua

xm.ru

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

1 record (1 active, 0 former)

●A2001:470:7240::2026-02-15 → 2026-07-28 · 2 obs

● 2026-02-15 22:02:58
● 2026-07-28 21:37:50

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
su	b.dns.ripn.net, e.dns.ripn.net, c.tld-servers.ru, a.dns.ripn.net...	12 records
doi.su	ns2.linode.com, ns4.linode.com, ns5.linode.com	-

✅ Authoritative Response

Server:92.123.95.4

NS records: ns2.linode.com, ns4.linode.com, ns5.linode.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for doi.su (unsigned zone)

⏱️ Timing

Total: 941ms | Queries: -

📄 Records

Type	Count	Sample Data
AAAA	1	`2001:470:7240::`
TXT	1	`v=spf1 a mx -all`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (b.dns.ripn.net, b.dns.ripn.net, e.dns.ripn.net...)

Analysis

Hierarchy

s.mx.doi.su and a.mx.doi.su are both subdomains of mx.doi.su.

Mail Server Role

doi.su uses mx.doi.su as a mail server.

doi.su, a.mx.doi.su and s.mx.doi.su tend to be used as mail servers in tandem with mx.doi.su.

IP Addresses

mx.doi.su resolves to one IP address: 2001:470:7240::.

idk.su, https.su, bmap.su and two other host names share IP numbers with mx.doi.su.

mx.doi.su - dns.ninja

mx.doi.su

doi.su