koko.cz - robtex.com

koko.cz

DNSSEC⚠️ Not signed
NSns.kraxnet.com ⚠️ Not in zone NS records
A212.24.155.205🇨🇿 QUANTCOM-AS212.24.128.0/19 Dial Telecom, a.s.
NSns.kraxnet.cz ⚠️ Not in zone NS records
A2001:67c:48::53🇨🇿 KRAXNET-AS2001:67c:48::/48 XNET
A178.217.247.2🇨🇿 KRAXNET-AS178.217.240.0/21 KRAXNET s.r.o.
PTRns.kraxnet.cz

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=1785662242

Same first word

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DNS History

10 records (2 active, 8 former)

20162017201820192020202120222023202420252026NSns.kraxnet.comns.kraxnet.czns.gransy.comns2.gransy.comns3.gransy.comns4.gransy.comns5.gransy.comMXmail.koko.czA178.217.247.18377.78.104.3
○NSns.gransy.com2015-06-28 → 2017-01-06 · 4 obs
● 2015-06-28 17:02:46
● 2017-01-06 00:52:06
○ 2026-06-14 15:40:22
○ 2026-08-02 10:08:46
●NSns.kraxnet.com2026-06-14 → 2026-08-02 · 3 obs
○ 2017-01-06 00:52:06
● 2026-06-14 15:40:22
● 2026-08-02 10:08:46
●NSns.kraxnet.cz2026-06-14 → 2026-08-02 · 3 obs
○ 2017-01-06 00:52:06
● 2026-06-14 15:40:22
● 2026-08-02 10:08:46
○NSns2.gransy.com2015-06-28 → 2017-01-06 · 4 obs
● 2015-06-28 17:02:46
● 2017-01-06 00:52:06
○ 2026-06-14 15:40:22
○ 2026-08-02 10:08:46
○NSns3.gransy.com2015-06-28 → 2017-01-06 · 4 obs
● 2015-06-28 17:02:46
● 2017-01-06 00:52:06
○ 2026-06-14 15:40:22
○ 2026-08-02 10:08:46
○NSns4.gransy.com2015-06-28 → 2017-01-06 · 4 obs
● 2015-06-28 17:02:46
● 2017-01-06 00:52:06
○ 2026-06-14 15:40:22
○ 2026-08-02 10:08:46
○NSns5.gransy.com2015-06-28 → 2017-01-06 · 4 obs
● 2015-06-28 17:02:46
● 2017-01-06 00:52:06
○ 2026-06-14 15:40:22
○ 2026-08-02 10:08:46
○MXmail.koko.cz2015-06-28 → 2017-01-06 · 4 obs
● 2015-06-28 17:02:46
● 2017-01-06 00:52:06
○ 2026-06-14 15:40:22
○ 2026-08-02 10:08:46
○A178.217.247.1832019-02-05 → 2020-10-20 · 5 obs
○ 2017-01-06 00:52:06
● 2019-02-05 18:37:28
● 2020-10-20 11:17:30
○ 2026-06-14 15:40:22
○ 2026-08-02 10:08:46
○A77.78.104.32015-06-28 → 2017-01-06 · 4 obs
● 2015-06-28 17:02:46
● 2017-01-06 00:52:06
○ 2019-02-05 18:37:28
○ 2026-08-02 10:08:46

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cza.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz-
koko.czns.kraxnet.cz, ns.kraxnet.com2 records

✅ Authoritative Response

Server:212.24.155.205

NS records: ns.kraxnet.cz, ns.kraxnet.com

🔒 DNSSEC Status

❌ Bogus (DNSSEC validation failed)

No DNSKEY for koko.cz

⏱️ Timing

Total: 1918ms | Queries: -

📄 Records

TypeCountSample Data

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns.kraxnet.cz, ns.kraxnet.cz)

Analysis

Name Servers

koko.cz has two authoritative name servers — ns.kraxnet.com and ns.kraxnet.cz.

The name server configuration of koko.cz is shared with other domains, for instance mandrax.cz, fastex.cz, 240.217.178.in-addr.arpa and two others.

Host names pointing to two IP addresses:

ns.kraxnet.cz resolves to 178.217.247.2 and 2001:67c:48::53.

Host names resolving to a single IP address:

ns.kraxnet.com resolves to 212.24.155.205.