kn.cz - dns.ninja

`kn.cz`

DNSSEC	🔒 Signed (DS record present)
A	2001:1ab0:7e1e:151:62:109:154:75^{🇨🇿 IGNUM-AS2001:1ab0::/32 Network of Ignum s.r.o. Czech Republic http://www.ignum.cz/}
		PTR	`dw163.webglobe.com`
A	62.109.154.75^{🇨🇿 IGNUM-AS62.109.128.0/19 Network of Ignum s.r.o. Czech Republic http://www.ignum.cz/}
NS	`ns.onebit.cz` ⭐
		A	2a00:1e40:a:53::5^{🇸🇰 IGNUM-AS2a00:1e40:a::/48}
			PTR	`ns1-bra.core.webglobe.com`
		A	185.65.223.35^{🇸🇰 IGNUM-AS185.65.223.0/24}
			PTR	`ns1-bra.core.webglobe.com`
NS	`ns.onebit.eu`
		A	2001:1ab0:7e1e:2::5^{🇨🇿 IGNUM-AS2001:1ab0::/32 Network of Ignum s.r.o. Czech Republic http://www.ignum.cz/}
			PTR	`ns2-prg.core.webglobe.com`
		A	217.31.48.201^{🇨🇿 IGNUM-AS217.31.48.0/20 Network of Ignum s.r.o. Czech Republic http://www.ignum.cz/}
			PTR	`ns2-prg.core.webglobe.com`
NS	`ns.onebit.org`
		A	2a03:b0c0:1:d0::1090:2001^{🇬🇧 DIGITALOCEAN2a03:b0c0:1::/48 DigitalOcean}
			PTR	`ns3-lon.core.webglobe.com`
		A	178.62.60.201^{🇬🇧 DIGITALOCEAN178.62.0.0/18 DigitalOcean}
			PTR	`ns3-lon.core.webglobe.com`
MX	`mx10.onebit.cz` ⭐
		A	62.109.128.119^{🇨🇿 IGNUM-AS62.109.128.0/19 Network of Ignum s.r.o. Czech Republic http://www.ignum.cz/}
			PTR	`mx-lb.core.webglobe.com`
MX	`mx10.onebit.eu`⁽¹⁰⁾
		A	185.102.21.66^{🇨🇿 ONE-NETWORK185.102.21.0/24}
			PTR	`mx-lb-bra.core.webglobe.com`
SOA	`ns.onebit.cz`hostmaster@onebit.cz 2026-05-30 #1

`cz`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.ns.nic.cz` ⭐
	NS	`b.ns.nic.cz`
	NS	`c.ns.nic.cz`
	NS	`d.ns.nic.cz`
	SOA	`a.ns.nic.cz`hostmaster@nic.cz serial=1780519639

Subdomains

mail.kn.cz

webmail.kn.cz

Same first word

kn.lt

kn.org.br

kn.cl

kn.ee

kn.fyi

kn.com.pl

kn.no

kn.uz.ua

kn.su

kn.vip

kn.ro

kn.kg

kn.am

kn.com

kn.sg

kn.se

kn.is

kn.ru

kn.ws

kn.co

kn.dev

kn.de

kn.af

kn.org

kn

kn.edu.pl

kn.co.kr

kn.ks.ua

kn.net.ua

kn.cx

kn.ua

kn.ac.th

kn.pl

kn.wielun.pl

kn.hu

kn.nu

kn.gl

kn.cc

kn.nl

kn.kiev.ua

kn.cz

kn.net

kn.com.ua

kn.com.my

kn.dk

kn.kz

kn.be

kn.rs

Similar names

nk.at

nk.ee

nk.lt

nk.org.cn

nk.ca

nk.cn

nk.ms

nk.fyi

nk.media

nk.com

nk.fi

nk.ac.kr

nk.io

nk.de

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nk.lv

nk.works

nk.am

nk.k12.oh.us

nk.by

nk.com.my

nk.world

nk.group

nk.org

nk.wtf

nk.be

nk.com.au

nk.tel

nk.com.br

nk.hateblo.jp

nk.ai

nk.cr

nk.vc

nk.dn.ua

nk.com.sg

nk.pl

nk.dk

nk.yn.cn

nk.pe.kr

nk.network

nk.gold

nk.sk

nk.com.pl

nk.cl

nk.se

nk.ru

nk.com.cn

nk.cz

nk.ua

nk.or.kr

nk.cm

nk.ac.th

nk.edu.vn

nk.net.cn

nk.no

nk.ne.kr

nk.com.hk

nk.nl

nk.org.ua

nk.cc

nk.in.th

DNS History

17 records (7 active, 10 former)

●NSns.onebit.cz2018-06-05 → 2026-06-03 · 3 obs

○ 2017-07-12 09:09:30
● 2018-06-05 22:10:06
● 2026-06-03 21:41:56

●NSns.onebit.eu2018-06-05 → 2026-06-03 · 3 obs

○ 2017-07-12 09:09:30
● 2018-06-05 22:10:06
● 2026-06-03 21:41:56

●NSns.onebit.org2018-06-05 → 2026-06-03 · 3 obs

○ 2017-07-12 09:09:30
● 2018-06-05 22:10:06
● 2026-06-03 21:41:56

○NSns.wedos.com2015-09-03 → 2017-07-12 · 4 obs

● 2015-09-03 08:28:16
● 2017-07-12 09:09:30
○ 2018-06-05 22:10:06
○ 2026-06-03 21:41:56

○NSns.wedos.cz2015-09-03 → 2017-07-12 · 4 obs

● 2015-09-03 08:28:16
● 2017-07-12 09:09:30
○ 2018-06-05 22:10:06
○ 2026-06-03 21:41:56

○NSns.wedos.eu2015-09-03 → 2017-07-12 · 4 obs

● 2015-09-03 08:28:16
● 2017-07-12 09:09:30
○ 2018-06-05 22:10:06
○ 2026-06-03 21:41:56

○NSns.wedos.net2015-09-03 → 2017-07-12 · 4 obs

● 2015-09-03 08:28:16
● 2017-07-12 09:09:30
○ 2018-06-05 22:10:06
○ 2026-06-03 21:41:56

○MXcpanel21.hexageek.com2015-09-03 → 2017-07-12 · 4 obs

● 2015-09-03 08:28:16
● 2017-07-12 09:09:30
○ 2018-06-05 22:10:06
○ 2026-06-03 21:41:56

●MXmx10.onebit.cz2018-06-05 → 2026-06-03 · 3 obs

○ 2017-07-12 09:09:30
● 2018-06-05 22:10:06
● 2026-06-03 21:41:56

●MXmx10.onebit.eu2018-06-05 → 2026-06-03 · 3 obs

○ 2017-07-12 09:09:30
● 2018-06-05 22:10:06
● 2026-06-03 21:41:56

○MXmx10.onebit.org2018-06-05 → 2018-06-05 · 4 obs

○ 2017-07-12 09:09:30
● 2018-06-05 22:10:06
○ 2019-08-11 09:43:00
○ 2026-06-03 21:41:56

○A109.105.53.52016-08-26 → 2017-07-12 · 5 obs

○ 2016-06-19 00:37:10
● 2016-08-26 22:25:20
● 2017-07-12 09:09:30
○ 2018-06-05 22:10:06
○ 2026-06-03 21:41:56

○A178.238.37.2342018-06-05 → 2021-09-02 · 5 obs

○ 2017-07-12 09:09:30
● 2018-06-05 22:10:06
● 2021-09-02 06:41:34
○ 2026-02-17 00:10:02
○ 2026-06-03 21:41:56

●A2001:1ab0:7e1e:151:62:109:154:752026-02-17 → 2026-06-03 · 3 obs

○ 2021-09-02 06:41:34
● 2026-02-17 00:10:02
● 2026-06-03 21:41:56

○A2a01:430:13::2342018-06-05 → 2021-09-02 · 5 obs

○ 2017-07-12 09:09:30
● 2018-06-05 22:10:06
● 2021-09-02 06:41:34
○ 2026-02-17 00:10:02
○ 2026-06-03 21:41:56

○A31.31.76.1252015-09-03 → 2016-06-19 · 4 obs

● 2015-09-03 08:28:16
● 2016-06-19 00:37:10
○ 2016-08-26 22:25:20
○ 2026-06-03 21:41:56

●A62.109.154.752026-02-17 → 2026-06-03 · 3 obs

○ 2021-09-02 06:41:34
● 2026-02-17 00:10:02
● 2026-06-03 21:41:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cz	b.ns.nic.cz, a.ns.nic.cz, d.ns.nic.cz, c.ns.nic.cz	-
kn.cz	ns.onebit.cz, ns.onebit.eu, ns.onebit.org	2 records

✅ Authoritative Response

Server:178.62.60.201

NS records: ns.onebit.cz, ns.onebit.eu, ns.onebit.org

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1004ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`62.109.154.75`
AAAA	1	`2001:1ab0:7e1e:151:62:109:154:75`
NS	3	`ns.onebit.cz, ns.onebit.eu...`
MX	2	`mx10.onebit.cz (pri: 0), mx10.onebit.eu (pri: 10)`
SOA	1	`ns.onebit.cz hostmaster.onebit.cz`

📌 Glue Records Collected

Total: 2

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

Analysis

Hierarchy

mail.kn.cz and webmail.kn.cz are both subdomains of kn.cz.

IP Addresses

kn.cz points to two IP numbers: 62.109.154.75 and 2001:1ab0:7e1e:151:62:109:154:75.

sagax.cz, smodels.cz, myagenda.cz and two other host names share IP numbers with kn.cz.

Name Servers

kn.cz has three name servers — ns.onebit.cz, ns.onebit.eu and ns.onebit.org.

There is at least partial name server overlap between kn.cz and other domains — podolsky.cz, cargobikes.cz, fite.cz and two more among them.

Each of ns.onebit.cz, ns.onebit.eu and ns.onebit.org points to two IP numbers. ns.onebit.cz points to 185.65.223.35 and 2a00:1e40:a:53::5. ns.onebit.eu points to 217.31.48.201 and 2001:1ab0:7e1e:2::5. ns.onebit.org points to 178.62.60.201 and 2a03:b0c0:1:d0::1090:2001.

Mail Servers

Mail for kn.cz is handled by two mail servers — mx10.onebit.cz and mx10.onebit.eu.

kn.cz uses an identical mail server configuration to several other domains — among them vseznamu.cz, komparz.cz, ditipo.sk and two more.

The mail servers of kn.cz overlap at least partially with those of other domains, including hozpoda.cz, h-a.cz and ceskafirma.cz.

This set of mail servers commonly appears together with the mail servers mx10.onebit.org.

mx10.onebit.cz → 62.109.128.119 and mx10.onebit.eu → 185.102.21.66: one IP number per host name.