`master.mailsupport.cz`

DNSSEC	⚠️ Not signed
A	2001:4de8:f001:1003::1^{🇨🇿 QUANTCOM-AS2001:4de8::/32 Dial Telecom, a.s.}
		PTR	`master.mailsupport.cz`
A	88.208.121.84^{🇨🇿 QUANTCOM-AS88.208.64.0/18 Dial Telecom, a.s.}

`mailsupport.cz`

	DNSSEC	🔒 Signed (DS record present)
	A	88.208.121.84^{🇨🇿 QUANTCOM-AS88.208.64.0/18 Dial Telecom, a.s.}
	NS	`ns.forpsi.net` ⭐
	NS	`ns.forpsi.cz`
	NS	`ns.forpsi.it`
	MX	`master.mailsupport.cz` ⭐
	TXT	`v=spf1 mx a ip6:2001:4de8:f001:1003::1 -all`
	SOA	`ns.forpsi.net`admin@forpsi.com 2026-04-30 #1

🔒 HSTS Preload (+subdomains)

PTR for

84.121.208.88.in-addr.arpa

1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.3.0.0.1.1.0.0.f.8.e.d.4.1.0.0.2.ip6.arpa

MX for

jurisgeo.cz

ricom.cz

mailsupport.cz

rayfield.cz

ppes.cz

kolos.cz

Previously MX for

cnim.cz

Same first word

master.tel

master.es

master.gr

master.as

master.rv.ua

master.ma

master.net.ru

master.to

master.web.tr

master.co

master.mx

master.dk

master.art.br

master.co.nz

master.cz

master.edu.pl

master.pp.ua

master.lk

master.org.il

master.or.at

master.africa

master.finance

master.works

master.codes

master.events

master.com.br

master.cool

master.com.gr

master.in

master.blue

master.lt

master.dev

master.kh.ua

master.com.ru

master.io

master.or.kr

master.technology

master.rentals

master.tj

master.ws

master.idv.tw

master.vision

master.com.es

master.group

master.agr.br

master.com

master.tw

master.web.id

master.world

master.com.pk

master.us

master.parts

master.jp

master.no

master.kz

master.me.it

master.de

master.com.pl

master.dnsalias.net

master.su

master.training

master.vg

master.today

master.pl

master.ba

master.com.cn

master.com.mx

master.surf

master.org.es

master.ai

master.be

master.by

master.org.tw

master.network

master.sumy.ua

master.fund

master.net

master.ie

master.ru.com

master.pro

master.shop

master.org.br

master.tychy.pl

master.bet

master.sh.cn

master.km.ua

master.support

master.ro

master.com.pe

master.tube

master.net.pl

master.ch

master.am

master.systems

master.vin

master.co.uk

master.com.ua

master.org

master.al

master.com.tr

master.clinic

master.chat

master.net.my

master.la

master.tips

master.se

master.uz

master.ms

master.mn

master.org.ua

master.com.kz

master.ca

master.reviews

master.report

master.media

master.ee

master.me

master.com.au

master.nu

master.construction

master.uk

master.ae

master.run

master.tools

master.cn.ua

master.ru

master.lublin.pl

master.recipes

master.de.com

master.az

master.live

master.com.co

master.awsapps.com

master.cash

master.plus

master.msk.ru

master.co.ua

master.ky

master.ua

master.link

master.eu

master.it

master.inf.br

master.co.kr

master.sklep.pl

master.cafe

master.ventures

master.name

master.fm

master.photography

master.tv.br

Similar names

termas.eu

smarte.schule

matres.nl

stream.ge

marest.nl

marest.com.br

sermat.cl

martes.de

metras.co.za

tesmar.it

armset.com

ramets.com

emarts.de

termas.com.br

stemar.info

stream.com.hr

esmart.fi

artems.co

teamrs.ru

trames.de

stream.today

stream.new

satrem.com

sermat.com.tr

teamsr.net

stamer.pl

matres.com

mestra.org

emastr.com

esmart.my

stream.scot

termas.ph

stream.fo

setram.com.br

trames.fr

trames.es

stream.ws

setram.dz

emstar.com

emarts.net

strema.org

stream.sk

esmart.co.il

stream.mx

mersat.de

tamers.com

treams.net

trames.com.mx

stream.pk

stream.pm

amrest.cz

stream.ventures

stream.gr

sermat.fr

marste.myshopify.com

smarte.io

marste.ro

esmart.org.au

martes.net

marest.se

straem.com

emstar.at

atserm.com

stream.lk

esmart.ch

stream.watch

emstar.ba

mestra.net

esmart.rs

ramtes.wixsite.com

stream.net

tremsa.com

steamr.com

stamer.group

stream.space

setram.com

mestar.nl

strema.net

stream.photos

stream.goip.de

esmart.link

DNS History

2 records (2 active, 0 former)

●A2001:4de8:f001:1003::12026-03-13 → 2026-05-13 · 3 obs

○ 2017-05-12 11:56:16
● 2026-03-13 02:57:34
● 2026-05-13 06:49:30

●A88.208.121.842017-05-12 → 2026-05-13 · 2 obs

● 2017-05-12 11:56:16
● 2026-05-13 06:49:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cz	a.ns.nic.cz, d.ns.nic.cz, c.ns.nic.cz, b.ns.nic.cz	-
mailsupport.cz	ns.forpsi.cz, ns.forpsi.it, ns.forpsi.net	2 records

✅ Authoritative Response

Server:95.110.254.165

NS records: ns.forpsi.cz, ns.forpsi.it, ns.forpsi.net

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1440ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`88.208.121.84`
AAAA	1	`2001:4de8:f001:1003::1`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns.forpsi.cz, ns.forpsi.cz)

Analysis

Mail Server Role

master.mailsupport.cz acts as the mail server for jurisgeo.cz, ricom.cz, mailsupport.cz, rayfield.cz, ppes.cz and a few other domains.

IP Addresses

master.mailsupport.cz resolves to two IP numbers: 2001:4de8:f001:1003::1 and 88.208.121.84.

Other host names such as mo-ta.cz and mailsupport.cz share IP numbers with master.mailsupport.cz.

master.mailsupport.cz - robtex.com