speaker.cz - robtex.com

speaker.cz

DNSSEC🔒 Signed (DS record present)
A2a00:19a0:3:72:0:d9c6:725d:1🇨🇿 ZONER-AS2a00:19a0::/32 ZONER-IPV6-NET
PTRjanus-i.zarea.net
A217.198.114.93🇨🇿 ZONER-AS217.198.112.0/20 ZONER-NET
NSns1.regzone.cz ⭐
A2a00:19a0:3:71:0:d9c6:710a:1🇨🇿 ZONER-AS2a00:19a0::/32 ZONER-IPV6-NET
PTRns1.regzone.cz
A217.198.113.10🇨🇿 ZONER-AS217.198.112.0/20 ZONER-NET
PTRns1.regzone.cz
NSns1.regzone.de
A2600:3c02::f03c:91ff:fedb:a6e7🇺🇸 AKAMAI-LINODE-AP2600:3c02::/32 Akamai Technologies
PTRns1.regzone.de
A23.92.29.43🇺🇸 AKAMAI-LINODE-AP23.92.28.0/22 Akamai Technologies
PTRns1.regzone.de
NSns1.regzone.info
A2001:1528:147::10🇨🇿 CASABLANCA-AS2001:1528::/32 Casablanca INT v6 network
PTRns1.regzone.info
A81.0.233.10🇨🇿 CASABLANCA-AS81.0.232.0/21 Casablanca INT
PTRns1.regzone.info
MXrelay.zoner.com ⭐
A217.198.120.100🇨🇿 ZONER-AS217.198.112.0/20 ZONER-NET
PTRrelay.zoner.com
MX10mx.zoner.com(10)
A217.198.120.36🇨🇿 ZONER-AS217.198.112.0/20 ZONER-NET
PTR10mx.zoner.com
MX15mx.zoner.com(15)
A81.0.233.6🇨🇿 CASABLANCA-AS81.0.232.0/21 Casablanca INT
PTR15mx.zoner.com
SOAns1.regzone.czadministrator@czechia.cz 2026-02-17 #4

cz

DNSSEC🔒 Signed (DS record present)
NSa.ns.nic.cz ⭐
NSb.ns.nic.cz
NSc.ns.nic.cz
NSd.ns.nic.cz
SOAa.ns.nic.czhostmaster@nic.cz serial=1774604848
WOT: SAFE (61/100)

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DNS History

8 records (8 active, 0 former)

20162017201820192020202120222023202420252026NSns1.regzone.czns1.regzone.dens1.regzone.infoMX10mx.zoner.com15mx.zoner.comrelay.zoner.comA217.198.114.932a00:19a0:3:72:0:d9c6:725d:1
●NSns1.regzone.cz2015-07-14 → 2026-03-27 · 2 obs
● 2015-07-14 20:33:46
● 2026-03-27 10:14:14
●NSns1.regzone.de2015-07-14 → 2026-03-27 · 2 obs
● 2015-07-14 20:33:46
● 2026-03-27 10:14:14
●NSns1.regzone.info2015-07-14 → 2026-03-27 · 2 obs
● 2015-07-14 20:33:46
● 2026-03-27 10:14:14
●MX10mx.zoner.com2015-07-14 → 2026-03-27 · 2 obs
● 2015-07-14 20:33:46
● 2026-03-27 10:14:14
●MX15mx.zoner.com2015-07-14 → 2026-03-27 · 2 obs
● 2015-07-14 20:33:46
● 2026-03-27 10:14:14
●MXrelay.zoner.com2015-07-14 → 2026-03-27 · 2 obs
● 2015-07-14 20:33:46
● 2026-03-27 10:14:14
●A217.198.114.932015-07-14 → 2026-03-27 · 2 obs
● 2015-07-14 20:33:46
● 2026-03-27 10:14:14
●A2a00:19a0:3:72:0:d9c6:725d:12015-07-14 → 2026-03-27 · 2 obs
● 2015-07-14 20:33:46
● 2026-03-27 10:14:14

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
czb.ns.nic.cz, d.ns.nic.cz, a.ns.nic.cz, c.ns.nic.cz-
speaker.czns1.regzone.cz, ns1.regzone.de, ns1.regzone.info2 records

✅ Authoritative Response

Server:217.198.113.10

NS records: ns1.regzone.cz, ns1.regzone.de, ns1.regzone.info

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1061ms | Queries: -

📄 Records

TypeCountSample Data
A1217.198.114.93
AAAA12a00:19a0:3:72:0:d9c6:725d:1
NS3ns1.regzone.cz, ns1.regzone.de...
MX3relay.zoner.com (pri: 1), 10mx.zoner.com (pri: 10)...
SOA1ns1.regzone.cz administrator.czechia.cz

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1.regzone.cz, ns1.regzone.cz)

Analysis

IP Addresses

speaker.cz points to two IP numbers: 2a00:19a0:3:72:0:d9c6:725d:1 and 217.198.114.93.

Other host names, for instance kebet.cz, janus-i.zarea.net, est-stage.cz, baril.cz and grafity.cz share IP numbers with speaker.cz.

Name Servers

The delegation for speaker.cz is handled by three name servers: ns1.regzone.cz, ns1.regzone.de and ns1.regzone.info.

speaker.cz at least partially shares name servers with other domains, for instance pohlavni-nemoci.info, bonatrans.eu, redhost.cz, kallib.cz and amitex.cz.

Two IP numbers per host:

ns1.regzone.cz points to 2a00:19a0:3:71:0:d9c6:710a:1 and 217.198.113.10.

ns1.regzone.de points to 2600:3c02::f03c:91ff:fedb:a6e7 and 23.92.29.43.

ns1.regzone.info points to 2001:1528:147::10 and 81.0.233.10.

Mail Servers

speaker.cz is handled by three mail servers: 10mx.zoner.com, 15mx.zoner.com and relay.zoner.com.

speaker.cz shares mail servers with other domains at least in part, for instance arboles.cz, tokan.eu, hese.cz, sokol.cz and zoner.hu.

Host names with one IP number:

10mx.zoner.com points to 217.198.120.36.

15mx.zoner.com points to 81.0.233.6.

relay.zoner.com points to 217.198.120.100.