koos.cz - robtex.com

koos.cz

DNSSEC⚠️ Not signed
A2001:1528:181::76:190🇨🇿 CASABLANCA-AS2001:1528::/32 Casablanca INT v6 network
PTRwww23.skok.cz
A77.78.76.190🇨🇿 CASABLANCA-AS77.78.76.0/24 Casablanca INT prefix fraction
NSns1.webglobe.cz ⭐ ⚠️ Not in parent delegation
A2a00:1e40:a:53::5🇸🇰 IGNUM-AS2a00:1e40:a::/48
PTRns1-bra.core.webglobe.com
A185.65.223.35🇸🇰 IGNUM-AS185.65.223.0/24
PTRns1-bra.core.webglobe.com
NSns.skok.cz ⚠️ Not in zone NS records
A2a00:1e40:a:53::5🇸🇰 IGNUM-AS2a00:1e40:a::/48
PTRns1-bra.core.webglobe.com
A185.65.223.35🇸🇰 IGNUM-AS185.65.223.0/24
PTRns1-bra.core.webglobe.com
NSns2.skok.cz ⚠️ Not in zone NS records
A2001:1ab0:7e1e:2::5🇨🇿 IGNUM-AS2001:1ab0::/32 Network of Ignum s.r.o. Czech Republic http://www.ignum.cz/
PTRns2-prg.core.webglobe.com
A217.31.48.201🇨🇿 IGNUM-AS217.31.48.0/20 Network of Ignum s.r.o. Czech Republic http://www.ignum.cz/
PTRns2-prg.core.webglobe.com
NSns2.webglobe.cz ⚠️ Not in parent delegation
A2001:1ab0:7e1e:2::5🇨🇿 IGNUM-AS2001:1ab0::/32 Network of Ignum s.r.o. Czech Republic http://www.ignum.cz/
PTRns2-prg.core.webglobe.com
A217.31.48.201🇨🇿 IGNUM-AS217.31.48.0/20 Network of Ignum s.r.o. Czech Republic http://www.ignum.cz/
PTRns2-prg.core.webglobe.com
NSns3.skokcz.eu ⚠️ Not in zone NS records
A2a03:b0c0:1:d0::1090:2001🇬🇧 DIGITALOCEAN2a03:b0c0:1::/48 DigitalOcean
PTRns3-lon.core.webglobe.com
A178.62.60.201🇬🇧 DIGITALOCEAN178.62.0.0/18 DigitalOcean
PTRns3-lon.core.webglobe.com
NSns3.webglobe.com ⚠️ Not in parent delegation
A2a03:b0c0:1:d0::1090:2001🇬🇧 DIGITALOCEAN2a03:b0c0:1::/48 DigitalOcean
PTRns3-lon.core.webglobe.com
A178.62.60.201🇬🇧 DIGITALOCEAN178.62.0.0/18 DigitalOcean
PTRns3-lon.core.webglobe.com
MXmx.skok.cz ⭐
A62.109.128.119🇨🇿 IGNUM-AS62.109.128.0/19 Network of Ignum s.r.o. Czech Republic http://www.ignum.cz/
PTRmx-lb.core.webglobe.com
MXmxbackup.skok.cz(20)
A62.109.128.119🇨🇿 IGNUM-AS62.109.128.0/19 Network of Ignum s.r.o. Czech Republic http://www.ignum.cz/
PTRmx-lb.core.webglobe.com
TXTv=spf1 include:spf1.c4.cz include:spf2.c4.cz -all
SOAns1.webglobe.czhostmaster@skok.cz 2026-01-27 #3

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=1774630036

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DNS History

12 records (10 active, 2 former)

20162017201820192020202120222023202420252026NSns.skok.czns1.webglobe.czns2.skok.czns2.webglobe.czns3.skokcz.euns3.webglobe.comMXmx.skok.czmxbackup.skok.czA2001:1528:181::76:19077.78.76.190109.123.218.1822001:1528:181::218:182
●NSns.skok.cz2015-08-20 → 2026-03-27 · 2 obs
● 2015-08-20 10:48:56
● 2026-03-27 17:27:10
●NSns1.webglobe.cz2026-02-17 → 2026-03-27 · 3 obs
○ 2015-08-20 10:48:56
● 2026-02-17 02:36:08
● 2026-03-27 17:27:10
●NSns2.skok.cz2015-08-20 → 2026-03-27 · 2 obs
● 2015-08-20 10:48:56
● 2026-03-27 17:27:10
●NSns2.webglobe.cz2026-02-17 → 2026-03-27 · 3 obs
○ 2015-08-20 10:48:56
● 2026-02-17 02:36:08
● 2026-03-27 17:27:10
●NSns3.skokcz.eu2015-08-20 → 2026-03-27 · 2 obs
● 2015-08-20 10:48:56
● 2026-03-27 17:27:10
●NSns3.webglobe.com2026-02-17 → 2026-03-27 · 3 obs
○ 2015-08-20 10:48:56
● 2026-02-17 02:36:08
● 2026-03-27 17:27:10
●MXmx.skok.cz2015-08-20 → 2026-03-27 · 2 obs
● 2015-08-20 10:48:56
● 2026-03-27 17:27:10
●MXmxbackup.skok.cz2015-08-20 → 2026-03-27 · 2 obs
● 2015-08-20 10:48:56
● 2026-03-27 17:27:10
○A109.123.218.1822015-08-20 → 2016-12-03 · 4 obs
● 2015-08-20 10:48:56
● 2016-12-03 22:30:14
○ 2017-08-20 01:41:52
○ 2026-03-27 17:27:10
○A2001:1528:181::218:1822015-08-20 → 2016-12-03 · 4 obs
● 2015-08-20 10:48:56
● 2016-12-03 22:30:14
○ 2017-08-20 01:41:52
○ 2026-03-27 17:27:10
●A2001:1528:181::76:1902017-08-20 → 2026-03-27 · 3 obs
○ 2016-12-03 22:30:14
● 2017-08-20 01:41:52
● 2026-03-27 17:27:10
●A77.78.76.1902017-08-20 → 2026-03-27 · 3 obs
○ 2016-12-03 22:30:14
● 2017-08-20 01:41:52
● 2026-03-27 17:27:10

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cza.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz-
koos.czns.skok.cz, ns2.skok.cz, ns3.skokcz.eu4 records

✅ Authoritative Response

Server:178.62.60.201

NS records: ns.skok.cz, ns2.skok.cz, ns3.skokcz.eu

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for koos.cz (unsigned zone)

⏱️ Timing

Total: 1375ms | Queries: -

📄 Records

TypeCountSample Data
A177.78.76.190
AAAA12001:1528:181::76:190
NS3ns3.webglobe.com, ns1.webglobe.cz...
MX2mxbackup.skok.cz (pri: 20), mx.skok.cz (pri: 10)
TXT1v=spf1 include:spf1.c4.cz include:spf2.c
SOA1ns1.webglobe.cz hostmaster.skok.cz

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns.skok.cz, ns2.skok.cz, ns.skok.cz...)

Analysis

IP Addresses

koos.cz resolves to two IP numbers: 2001:1528:181::76:190 and 77.78.76.190.

Other host names, for instance vykas.cz, restauraceupristavu.cz, skyleader.aero, musictime.cz and gaudolino.cz share IP numbers with koos.cz.

Name Servers

koos.cz is delegated to six name servers: ns3.webglobe.com, ns2.skok.cz, ns.skok.cz, ns1.webglobe.cz, ns2.webglobe.cz and ns3.skokcz.eu.

koos.cz partially shares name servers with other domains; examples include lognet.sk, cicz.eu, levne-ubytovani-brno.eu, kiks.cz and evident.sk.

These name servers are commonly used with the name servers ns1.ebola.cz, ns.ebola.cz, ns2.ebola.cz, ns1.webglobe.sk and ns2.webglobe.sk.

Host names with two IP numbers:

Host ns3.webglobe.com points to 2a03:b0c0:1:d0::1090:2001 and 178.62.60.201

Host ns2.skok.cz points to 2001:1ab0:7e1e:2::5 and 217.31.48.201

Host ns.skok.cz points to 2a00:1e40:a:53::5 and 185.65.223.35

Host ns1.webglobe.cz points to 2a00:1e40:a:53::5 and 185.65.223.35

Host ns2.webglobe.cz points to 2001:1ab0:7e1e:2::5 and 217.31.48.201

Host ns3.skokcz.eu points to 2a03:b0c0:1:d0::1090:2001 and 178.62.60.201

Host names that point to 2a03:b0c0:1:d0::1090:2001: ns3.webglobe.com and ns3.skokcz.eu

Host names that point to 178.62.60.201: ns3.webglobe.com and ns3.skokcz.eu

Host names that point to 2001:1ab0:7e1e:2::5: ns2.skok.cz and ns2.webglobe.cz

Host names that point to 217.31.48.201: ns2.skok.cz and ns2.webglobe.cz

Host names that point to 2a00:1e40:a:53::5: ns.skok.cz and ns1.webglobe.cz

Host names that point to 185.65.223.35: ns.skok.cz and ns1.webglobe.cz

Mail Servers

koos.cz is handled by two mail servers: mx.skok.cz and mxbackup.skok.cz.

koos.cz has the same mail server setup as other domains, including lashesprofessional.com, olivari.cz, janagregorova.cz, silnice.com and poresta.cz.

Some mail servers are shared between koos.cz and other domains, for example zus-harmony.cz.

Host names with one IP number

Host name mx.skok.cz points to 62.109.128.119

Host name mxbackup.skok.cz points to 62.109.128.119

Host names that point to 62.109.128.119: mx.skok.cz and mxbackup.skok.cz