mail.optimail.cz - robtex.com

mail.optimail.cz

DNSSEC⚠️ Not signed
A81.95.110.8🇨🇿 ACTIVE24-AS81.95.96.0/20 CZ-ACTIVE24-NET1
PTRgds153a.active24.cz

optimail.cz

DNSSEC🔒 Signed (DS record present)
A2a02:4a8:ac24:111::110:8🇨🇿 ACTIVE24-AS2a02:4a8::/32 CZ-ACTIVE24-NET6
A81.95.110.8🇨🇿 ACTIVE24-AS81.95.96.0/20 CZ-ACTIVE24-NET1
NSalfa.ns.active24.cz ⭐
NSbeta.ns.active24.cz
NSgama.ns.active24.sk
MXmx1.active24.com ⭐
MXmx2.active24.com(20)
TXTv=spf1 a mx ip4:81.95.110.8 ip6:2a02:4a8:ac24:111::110:8 include:spf.active24...
SOAalfa.ns.active24.czhostmaster@active24.cz 2025-01-21 #2

Previously MX for

optimail.cz

Same first word

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DNS History

5 records (1 active, 4 former)

20162017201820192020202120222023202420252026A81.95.110.82001:1528:137::f182.208.29.194CNAME46.36.38.52mail.gransy.com
○A2001:1528:137::f12015-06-11 → 2015-06-11 · 3 obs
● 2015-06-11 09:55:44
○ 2026-04-12 17:57:12
○ 2026-04-12 17:57:14
●A81.95.110.82026-04-12 → 2026-04-12 · 3 obs
○ 2015-06-11 09:55:44
● 2026-04-12 17:57:12
● 2026-04-12 17:57:14
○A82.208.29.1942015-06-11 → 2015-06-11 · 3 obs
● 2015-06-11 09:55:44
○ 2026-04-12 17:57:12
○ 2026-04-12 17:57:14
○CNAME46.36.38.522015-10-22 → 2016-04-19 · 5 obs
○ 2015-06-11 09:55:44
● 2015-10-22 18:00:30
● 2016-04-19 12:54:28
○ 2026-04-12 17:57:12
○ 2026-04-12 17:57:14
○CNAMEmail.gransy.com2015-06-11 → 2015-06-11 · 3 obs
● 2015-06-11 09:55:44
○ 2015-10-22 18:00:30
○ 2026-04-12 17:57:14

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cza.ns.nic.cz, c.ns.nic.cz, b.ns.nic.cz, d.ns.nic.cz8 records
optimail.czalfa.ns.active24.cz, beta.ns.active24.cz, gama.ns.active24.sk4 records

✅ Authoritative Response

Server:81.95.96.2

NS records: alfa.ns.active24.cz, beta.ns.active24.cz, gama.ns.active24.sk

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1466ms | Queries: -

📄 Records

TypeCountSample Data
A181.95.110.8

📌 Glue Records Collected

Total: 12

In-bailiwick: 8 (a.ns.nic.cz, a.ns.nic.cz, c.ns.nic.cz...)

Out-of-bailiwick: 4 (alfa.ns.active24.cz, alfa.ns.active24.cz, beta.ns.active24.cz...)

Analysis

IP Addresses

mail.optimail.cz resolves to a single IP: 81.95.110.8.

Other host names including www.optimail.cz, gds153a.active24.cz and optimail.cz share IP numbers with mail.optimail.cz.