mail.testcore.cz - robtex.com

mail.testcore.cz

DNSSEC⚠️ Not signed
A185.66.36.222🇨🇿 GIGASERVER185.66.36.0/22 CZ-SEONET-20140805
PTRmail.gigaserver.cz

testcore.cz

DNSSEC⚠️ Not signed
A185.66.36.45🇨🇿 GIGASERVER185.66.36.0/22 CZ-SEONET-20140805
NS1.ns.gigaserver.cz ⭐
NS2.ns.gigaserver.cz
NS3.ns.gigaserver.cz
NS4.ns.gigaserver.cz
MXmail.gigaserver.cz ⭐
TXTv=spf1 mx a include:smtp-gw.gigaserver.cz ~all
SOA1.ns.gigaserver.czdns@gigaserver.cz serial=1545516467

Previously MX for

testcore.cz

Same first word

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DNS History

2 records (1 active, 1 former)

20162017201820192020202120222023202420252026A185.66.36.22285.118.128.3
●A185.66.36.2222026-02-27 → 2026-04-05 · 3 obs
○ 2016-07-14 15:20:04
● 2026-02-27 15:40:56
● 2026-04-05 18:24:20
○A85.118.128.32015-05-22 → 2016-07-14 · 4 obs
● 2015-05-22 05:14:54
● 2016-07-14 15:20:04
○ 2026-02-27 15:40:56
○ 2026-04-05 18:24:20

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cza.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz-
testcore.cz1.ns.gigaserver.cz, 2.ns.gigaserver.cz, 3.ns.gigaserver.cz, 4.ns.gigaserver.cz4 records

✅ Authoritative Response

Server:185.66.36.92

NS records: 1.ns.gigaserver.cz, 2.ns.gigaserver.cz, 3.ns.gigaserver.cz, 4.ns.gigaserver.cz

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1500ms | Queries: -

📄 Records

TypeCountSample Data
A1185.66.36.222

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (1.ns.gigaserver.cz, 2.ns.gigaserver.cz, 3.ns.gigaserver.cz...)

Analysis

IP Addresses

mail.testcore.cz points to a single IP number: 185.66.36.222.

other host names for instance mail.singulis.cz, mail.kvinono.com, mail.bikesportmh.cz, mail.mylab.cz and mail.compmania.net share IP numbers with mail.testcore.cz.