hdn.cz - robtex.com

hdn.cz

DNSSEC⚠️ Not signed
NSns1.one.cz ⚠️ Not in zone NS records
A2001:470:6f:864::1🇺🇸 HURRICANE2001:470::/32 Hurricane Electric 55 South Market St San Jose, CA
PTRns1.one.cz
A46.149.113.151🇨🇿 ALFSERVIS-AS46.149.112.0/20 Route object 1 AlfServis s.r.o.
PTRns1.one.cz
NSns2.one.cz ⚠️ Not in zone NS records
A193.85.20.140🇨🇿 TMOBILE-CZ193.85.0.0/16 T-Mobile Czech Republic a.s.
PTRns2.one.cz
NSns3.one.cz ⚠️ Not in zone NS records
A2001:470:6f:30f::1:1🇺🇸 HURRICANE2001:470::/32 Hurricane Electric 55 South Market St San Jose, CA
PTRns3.one.cz
A46.149.113.187🇨🇿 ALFSERVIS-AS46.149.112.0/20 Route object 1 AlfServis s.r.o.
PTRns3.one.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=1783745239
WOT: SAFE (60/100)

Same first word

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hdn.co.uk
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hdn.org.ph
hdn.ch
hdn.com.br
hdn.pl
hdn.lu
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hdn.in
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hdn.nl
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hdn.gov.co
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hdn.com.vn

Similar names

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dhn.com.ar
ndh.ch
ndh.it
dnh.gov.in
hnd.ch
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hnd.cl
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nhd.info
dhn.com.do
dhn.ru
ndh.co
ndh.com.br
nhd.co.za
ndh.eu
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hnd.lv
ndh.tel
dhn.nl
dhn.pl
hnd.com.au
hnd.ru
nhd.ch
dnh.net
dnh.info
hnd.eu
nhd.be
nhd.com.cn
ndh.ie
dhn.tv
nhd.net.au
hnd.es
dhn.be
ndh.net
dnh.de
ndh.pl
nhd.by
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dhn.mil.pe
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dnh.nl
dnh.es
dhn.com
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nhd.cz
dhn.ca
dnh.net.nz
dhn.asia
hnd.biz
dhn.me
dhn.org
nhd.net.nz
hnd.aero
ndh.us
hnd.jp
dhn.com.tr
nhd.co
nhd.fr
hnd.co.uk
nhd.net

DNS History

21 records (3 active, 18 former)

200920112013201520172019202120232025NSns1.one.czns2.one.czns3.one.czns1.ceskyserver.czns1.websupport.skns2.ceskyserver.czns2.websupport.skns3.websupport.skMXalt1.aspmx.l.google.comalt2.aspmx.l.google.comaspmx.l.google.comaspmx2.googlemail.comaspmx3.googlemail.comaspmx4.googlemail.comaspmx5.googlemail.commail.ceskyserver.czmailin1.hdn.czmailin2.hdn.czmailinbackup1.hdn.czA37.9.175.389.185.254.14
○NSns1.ceskyserver.cz2008-03-27 → 2008-03-27 · 3 obs
● 2008-03-27 07:19:04
○ 2015-08-09 02:52:22
○ 2026-07-11 05:48:58
●NSns1.one.cz2026-06-13 → 2026-07-11 · 3 obs
○ 2017-01-15 09:35:52
● 2026-06-13 07:47:34
● 2026-07-11 05:48:58
○NSns1.websupport.sk2015-08-09 → 2017-01-15 · 5 obs
○ 2008-03-27 07:19:04
● 2015-08-09 02:52:22
● 2017-01-15 09:35:52
○ 2026-06-13 07:47:34
○ 2026-07-11 05:48:58
○NSns2.ceskyserver.cz2008-03-27 → 2008-03-27 · 3 obs
● 2008-03-27 07:19:04
○ 2015-08-09 02:52:22
○ 2026-07-11 05:48:58
●NSns2.one.cz2026-06-13 → 2026-07-11 · 3 obs
○ 2017-01-15 09:35:52
● 2026-06-13 07:47:34
● 2026-07-11 05:48:58
○NSns2.websupport.sk2015-08-09 → 2017-01-15 · 5 obs
○ 2008-03-27 07:19:04
● 2015-08-09 02:52:22
● 2017-01-15 09:35:52
○ 2026-06-13 07:47:34
○ 2026-07-11 05:48:58
●NSns3.one.cz2026-06-13 → 2026-07-11 · 3 obs
○ 2017-01-15 09:35:52
● 2026-06-13 07:47:34
● 2026-07-11 05:48:58
○NSns3.websupport.sk2015-08-09 → 2017-01-15 · 5 obs
○ 2008-03-27 07:19:04
● 2015-08-09 02:52:22
● 2017-01-15 09:35:52
○ 2026-06-13 07:47:34
○ 2026-07-11 05:48:58
○MXalt1.aspmx.l.google.com2015-08-09 → 2017-01-15 · 5 obs
○ 2008-03-27 07:19:04
● 2015-08-09 02:52:22
● 2017-01-15 09:35:52
○ 2026-06-13 07:47:34
○ 2026-07-11 05:48:58
○MXalt2.aspmx.l.google.com2015-08-09 → 2017-01-15 · 5 obs
○ 2008-03-27 07:19:04
● 2015-08-09 02:52:22
● 2017-01-15 09:35:52
○ 2026-06-13 07:47:34
○ 2026-07-11 05:48:58
○MXaspmx.l.google.com2015-08-09 → 2017-01-15 · 5 obs
○ 2008-03-27 07:19:04
● 2015-08-09 02:52:22
● 2017-01-15 09:35:52
○ 2026-06-13 07:47:34
○ 2026-07-11 05:48:58
○MXaspmx2.googlemail.com2015-08-09 → 2017-01-15 · 5 obs
○ 2008-03-27 07:19:04
● 2015-08-09 02:52:22
● 2017-01-15 09:35:52
○ 2026-06-13 07:47:34
○ 2026-07-11 05:48:58
○MXaspmx3.googlemail.com2015-08-09 → 2017-01-15 · 5 obs
○ 2008-03-27 07:19:04
● 2015-08-09 02:52:22
● 2017-01-15 09:35:52
○ 2026-06-13 07:47:34
○ 2026-07-11 05:48:58
○MXaspmx4.googlemail.com2015-08-09 → 2017-01-15 · 5 obs
○ 2008-03-27 07:19:04
● 2015-08-09 02:52:22
● 2017-01-15 09:35:52
○ 2026-06-13 07:47:34
○ 2026-07-11 05:48:58
○MXaspmx5.googlemail.com2015-08-09 → 2017-01-15 · 5 obs
○ 2008-03-27 07:19:04
● 2015-08-09 02:52:22
● 2017-01-15 09:35:52
○ 2026-06-13 07:47:34
○ 2026-07-11 05:48:58
○MXmail.ceskyserver.cz2008-03-27 → 2008-03-27 · 3 obs
● 2008-03-27 07:19:04
○ 2015-08-09 02:52:22
○ 2026-07-11 05:48:58
○MXmailin1.hdn.cz2015-08-09 → 2017-01-15 · 5 obs
○ 2008-03-27 07:19:04
● 2015-08-09 02:52:22
● 2017-01-15 09:35:52
○ 2026-06-13 07:47:34
○ 2026-07-11 05:48:58
○MXmailin2.hdn.cz2015-08-09 → 2017-01-15 · 5 obs
○ 2008-03-27 07:19:04
● 2015-08-09 02:52:22
● 2017-01-15 09:35:52
○ 2026-06-13 07:47:34
○ 2026-07-11 05:48:58
○MXmailinbackup1.hdn.cz2015-08-09 → 2016-03-27 · 5 obs
○ 2008-03-27 07:19:04
● 2015-08-09 02:52:22
● 2016-03-27 22:20:08
○ 2016-07-02 20:58:36
○ 2026-07-11 05:48:58
○A37.9.175.32015-08-09 → 2017-01-15 · 5 obs
○ 2008-03-27 07:19:04
● 2015-08-09 02:52:22
● 2017-01-15 09:35:52
○ 2026-06-13 07:47:34
○ 2026-07-11 05:48:58
○A89.185.254.142008-03-27 → 2008-03-27 · 3 obs
● 2008-03-27 07:19:04
○ 2015-08-09 02:52:22
○ 2026-07-11 05:48:58

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cza.ns.nic.cz, c.ns.nic.cz, b.ns.nic.cz, d.ns.nic.cz8 records
hdn.czns1.one.cz, ns2.one.cz, ns3.one.cz5 records

✅ Authoritative Response

Server:46.149.113.151

NS records: ns1.one.cz, ns2.one.cz, ns3.one.cz

🔒 DNSSEC Status

❌ Bogus (DNSSEC validation failed)

No DNSKEY for hdn.cz

⏱️ Timing

Total: 1192ms | Queries: -

📄 Records

TypeCountSample Data

📌 Glue Records Collected

Total: 13

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

Out-of-bailiwick: 5 (ns1.one.cz, ns1.one.cz, ns2.one.cz...)

Analysis

Name Servers

DNS for hdn.cz is handled by three authoritative name servers: ns1.one.cz, ns2.one.cz and ns3.one.cz.

At least some of hdn.cz's name servers are shared with other domains, for example sszn.eu, cardiofitness.cz, eden.cz and two more.

Hosts with two IP numbers each:

ns1.one.cz has two IP addresses: 46.149.113.151 and 2001:470:6f:864::1.

ns3.one.cz has two IP addresses: 46.149.113.187 and 2001:470:6f:30f::1:1.

Hosts that resolve to one IP address:

ns2.one.cz directs to 193.85.20.140.