mail.cleanday.cz - robtex.com

mail.cleanday.cz

DNSSEC⚠️ Not signed
A81.91.86.14🇨🇿 WEB4U81.91.80.0/21
PTRphp7.web4u.cz

cleanday.cz

DNSSEC🔒 Signed (DS record present)
A81.91.86.14🇨🇿 WEB4U81.91.80.0/21
NSns2.web4u.cz ⭐
NSns.web4u.cz
MXtristan.mail4all.cz ⭐
MXhq.bluecell.cz(20)
TXTv=spf1 mx ip4:46.234.101.139 ip4:91.239.237.130 include:_spf.google.com ~all
SOAns.web4u.czadmin@web4u.cz 2025-02-13 #0

Previously MX for

cleanday.cz

Same first word

mail.(0x6c6f6c697461)punk.jp
mail.sc
mail.gov.ie
mail.company
mail.gov.mn
mail.priv.pl
mail.mw
mail.co.nz
mail.sdscloud.pl
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mail.party
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mail.gov.mw
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mail.gov.ms
mail.so
mlai.net
lima.jp
ilam.cn
imal.se
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alim.ru
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liam.sk
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amli.dev
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aiml.tech
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mail.je
ilma.dev
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ailm.de

DNS History

2 records (1 active, 1 former)

2017201820192020202120222023202420252026A81.91.86.1478.24.14.76
○A78.24.14.762016-11-20 → 2016-11-20 · 2 obs
● 2016-11-20 16:24:12
○ 2026-04-15 15:38:42
●A81.91.86.142026-04-15 → 2026-04-15 · 2 obs
○ 2016-11-20 16:24:12
● 2026-04-15 15:38:42

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cza.ns.nic.cz, c.ns.nic.cz, b.ns.nic.cz, d.ns.nic.cz-
cleanday.czns.web4u.cz, ns2.web4u.cz4 records

✅ Authoritative Response

Server:185.14.224.241

NS records: ns.web4u.cz, ns2.web4u.cz

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1193ms | Queries: -

📄 Records

TypeCountSample Data
A181.91.86.14

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns.web4u.cz, ns.web4u.cz, ns2.web4u.cz...)

Analysis

IP Addresses

mail.cleanday.cz points to IP number 81.91.86.14.

For instance, other host names abacademy.cz, webservis.biz, csff.cz, centrumpivovar.cz and itn.cz share IP numbers with mail.cleanday.cz.