mail.qehs.cz - robtex.com

mail.qehs.cz

DNSSEC⚠️ Not signed
A81.91.87.10🇨🇿 WEB4U81.91.80.0/21
PTRmail.web4u.cz

qehs.cz

DNSSEC🔒 Signed (DS record present)
A81.91.86.11🇨🇿 WEB4U81.91.80.0/21
NSns2.web4u.cz ⭐
NSns.web4u.cz
MXmx1.mailchannels.net ⭐
MXmx2.mailchannels.net ⭐
SOAns.web4u.czadmin@web4u.cz 2025-05-02 #0

Previously MX for

qehs.cz

Same first word

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DNS History

1 record (1 active, 0 former)

20162017201820192020202120222023202420252026A81.91.87.10
●A81.91.87.102015-06-05 → 2026-04-13 · 2 obs
● 2015-06-05 09:54:00
● 2026-04-13 09:45:36

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
czd.ns.nic.cz, a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz-
qehs.czns.web4u.cz, ns2.web4u.cz4 records

✅ Authoritative Response

Server:85.207.53.12

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

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 529ms | Queries: -

📄 Records

TypeCountSample Data
A181.91.87.10

📌 Glue Records Collected

Total: 4

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

Analysis

IP Addresses

mail.qehs.cz points to a single IP number: 81.91.87.10.

Other host names, for instance mail.osvald.in, mail.sportpodlahy.sk, mail.cjopk.com, mail.bayerteamsports.com and mail.eurointer.cz share IP numbers with mail.qehs.cz.