`mail.cat.cz`

DNSSEC	⚠️ Not signed
A	90.179.188.140^{🇨🇿 O2-CZECH-REPUBLIC90.178.0.0/15 CZ.CZNET}
		PTR	`90-179-188-140.rcm.o2.cz`
MX	`mail.cat.cz` ⭐
		A	90.179.188.140^{🇨🇿 O2-CZECH-REPUBLIC90.178.0.0/15 CZ.CZNET}
			PTR	`90-179-188-140.rcm.o2.cz`

`cat.cz`

	DNSSEC	🔒 Signed (DS record present)
	A	90.179.188.139^{🇨🇿 O2-CZECH-REPUBLIC90.178.0.0/15 CZ.CZNET}
	NS	`ns1.websupport.cz` ⭐
	NS	`ns2.websupport.cz`
	NS	`ns3.websupport.eu`
	MX	`email.cat.cz` ⭐
	MX	`cat-cz.mail.protection.outlook.com`⁽²⁰⁾
	TXT	`MS=ms17379067`
	TXT	`v=spf1 include:spf.protection.outlook.com -all`
	TXT	`google-site-verification=z2lmslBi0L9ko0W4ZSDZcWBCLQkQwsOtp8WsUegvFqo`
	SOA	`ns1.websupport.cz`admin@websupport.cz serial=1750493869

MX for

mail.cat.cz

Previously MX for

akpartik.cz

bazeni.cz

Same first word

mail.brasilia.me

mail.hopto.me

mail.pn

mail.panel.dev

mail.gov.il

mail.ie

mail.co.cr

mail.pa

mail.schaeffler

mail.gov.to

mail.berlin

mail.dynns.com

mail.go.id

mail.tl

mail.rec.br

mail.com.ps

mail.(0x6c6f6c697461)punk.jp

mail.sc

mail.gov.ie

mail.company

mail.gov.mn

mail.priv.pl

mail.mw

mail.gov.na

mail.co.nz

mail.sdscloud.pl

mail.az

mail.is

mail.id

mail.tr

mail.tt

mail.media

mail.vinnica.ua

mail.readymade.jp

mail.raindrop.jp

mail.tj

mail.mydissent.net

mail.spdns.org

mail.lk

mail.fish

mail.pp.ua

mail.fun

mail.no-ip.net

mail.mn

mail.mydns.bz

mail.fem.jp

mail.health

mail.s3.amazonaws.com

mail.gov.ye

mail.com.kg

mail.nra

mail.couchpotatofries.org

mail.radio.fm

mail.od.ua

mail.ms

mail.boleslawiec.pl

mail.mydns.vc

mail.lutsk.ua

mail.kz

mail.im

mail.kaas.gg

mail.it.com

mail.gov.mg

mail.ss

mail.co

mail.tc

mail.gda.pl

mail.world

mail.pe

mail.sunnyday.jp

mail.group

mail.gov

mail.org.za

mail.mx

mail.cy

mail.gov.ae

mail.com.ba

mail.co.zw

mail.org

mail.pixolino.com

mail.ug

mail.ly

mail.gs

mail.bg

mail.wtf

mail.webhop.me

mail.al

mail.myfast.space

mail.vip

mail.red

mail.co.il

mail.pf

mail.com.mx

mail.uy

mail.gt

mail.training

mail.in.ua

mail.cx

mail.gm

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mail.ai

lami.ro

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alim.ee

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mail.org.ru

mali.ch

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liam.net

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mila.net

mail.credit

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mail.perspecta.cloud

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imla.at

liam.guru

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amli.nl

mila.systems

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mail.photography

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lmai.in

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mail.rv.ua

lmia.net

DNS History

3 records (2 active, 1 former)

●MXmail.cat.cz2026-05-11 → 2026-05-11 · 2 obs

● 2026-05-11 01:26:02
● 2026-05-11 01:26:04

○A217.11.254.902015-07-12 → 2016-05-05 · 4 obs

● 2015-07-12 19:33:02
● 2016-05-05 23:37:52
○ 2026-05-11 01:26:02
○ 2026-05-11 01:26:04

●A90.179.188.1402026-05-11 → 2026-05-11 · 3 obs

○ 2016-05-05 23:37:52
● 2026-05-11 01:26:02
● 2026-05-11 01:26:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cz	b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz, a.ns.nic.cz	-
cat.cz	ns2.websupport.cz, ns1.websupport.cz, ns3.websupport.eu	-

✅ Authoritative Response

Server:185.71.159.12

NS records: ns2.websupport.cz, ns1.websupport.cz, ns3.websupport.eu

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 761ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`90.179.188.140`
MX	1	`mail.cat.cz (pri: 30)`

Analysis

Mail Server Role

mail.cat.cz serves as the mail server for mail.cat.cz.

IP Addresses

mail.cat.cz points to an IP address: 90.179.188.140.

other host names include mail.gbcs.cz, ns.cat.cz, ns2.cat.cz, server.cat.cz and 90-179-188-140.rcm.o2.cz; they share IP numbers with mail.cat.cz.

Mail Servers

mail.cat.cz is handled by a single mail server.

The host name mail.cat.cz points to IP 90.179.188.140.

mail.cat.cz - robtex.com

mail.cat.cz

cat.cz