`so.cz`

DNSSEC	🔒 Signed (DS record present)
A	78.24.14.20^{🇨🇿 VSHOSTING78.24.8.0/21 I.}
NS	`ns1.websupport.cz` ⭐
		A	2a10:bbc0::11^{🇨🇿 ACTIVE24-AS2a10:bbc0::/32}
			PTR	`ns1.websupport.eu`
		A	45.10.97.11^{🇨🇿 ACTIVE24-AS45.10.97.0/24}
			PTR	`ns1.websupport.eu`
NS	`ns2.websupport.cz`
		A	2a02:250:3::12^{🇸🇪 ACTIVE24-AS2a02:250:3::/48}
			PTR	`ns2.websupport.eu`
		A	185.71.159.12^{🇸🇪 ACTIVE24-AS185.71.159.0/24}
			PTR	`ns2.websupport.eu`
NS	`ns3.websupport.eu`
		A	2a10:bbc0::13^{🇨🇿 ACTIVE24-AS2a10:bbc0::/32}
			PTR	`ns3.websupport.eu`
		A	45.10.97.13^{🇨🇿 ACTIVE24-AS45.10.97.0/24}
			PTR	`ns3.websupport.eu`
SOA	`ns1.websupport.cz`admin@websupport.cz serial=1734899658

`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=1771291036

Subdomains

www.so.cz

Same first word

so.net.pl

so.capital

so.edu.vn

so.ge

so.de

so.enf.br

so.no

so.co.za

so.gd

so.zone

so.com.br

so.run

so.com.ua

so.cc

so.la

so.arte

so.coffee

so.car

so.gen.tr

so.ws

so.wine

so.cheap

so.edu.au

so.df.gov.br

so.com.qa

so.gs

so.st

so.fi

so.uk

so.kg

so.in.th

so.com.tr

so.radio.br

so.com.au

so.me

so.co.th

so.ru

so.by

so.ae

so.mk

so.vg

so.money

so.kz

so.lu

so.ch

so.net

so.dog

so.dk

so.spb.ru

so.ee

so.be

so.bj.cn

so.org

so.ph

so.cn

so.ms

so.au

so.vc

so.life

so.se

so.city

so.uz

so.lv

so.uy

so.media

so.energy

so.co

so.cx

so.su

so.com

so.torun.pl

so.cm

so.cl

so.fo

so.org.nz

so.world

so.pl

so.agency

so.ro

so.digital

so

so.hu

so.io

so.pe

so.to

so.cool

so.cz

so.ma

so.edgekey.net

so.ninja

so.ua

so.ink

so.ca

Similar names

os.hu

os.co.uk

os.amsterdam

os.tw.cn

os.md

os.guide

os.cz

os.co

os.today

os.kommune.no

os.click

os.dz

os.us.eu.org

os.ma

os.cx

os.to

os.ca

os.life

os.org.ua

os.edu

os.uk

os.org.za

os.ee

os.by

os.photos

os.business

os.cl

os.ne.kr

os.co.za

os.myds.me

os.watch

os.com.sa

os.city

os.mg

os.me

os.vc

os.pl

os.com.my

os.uz

os.in.th

os.io

os.am

os.rs

os.ro

os.do

os.st

os.com.mx

os.gl

os.com.cn

os.org

os.sk

os.social

DNS History

16 records (4 active, 12 former)

○NSalfa.ns.active24.cz2015-08-31 → 2021-04-10 · 5 obs

○ 2008-03-23 17:18:44
● 2015-08-31 13:36:58
● 2021-04-10 14:41:50
○ 2026-02-18 04:10:48
○ 2026-03-18 03:35:34

○NSbeta.ns.active24.cz2015-08-31 → 2021-04-10 · 5 obs

○ 2008-03-23 17:18:44
● 2015-08-31 13:36:58
● 2021-04-10 14:41:50
○ 2026-02-18 04:10:48
○ 2026-03-18 03:35:34

○NSgama.ns.active24.sk2015-08-31 → 2021-04-10 · 5 obs

○ 2008-03-23 17:18:44
● 2015-08-31 13:36:58
● 2021-04-10 14:41:50
○ 2026-02-18 04:10:48
○ 2026-03-18 03:35:34

○NSns.forpsi.cn2008-03-23 → 2008-03-23 · 3 obs

● 2008-03-23 17:18:44
○ 2015-08-31 13:36:58
○ 2026-03-18 03:35:34

○NSns.forpsi.cz2008-03-23 → 2008-03-23 · 3 obs

● 2008-03-23 17:18:44
○ 2015-08-31 13:36:58
○ 2026-03-18 03:35:34

○NSns.forpsi.net2008-03-23 → 2008-03-23 · 3 obs

● 2008-03-23 17:18:44
○ 2015-08-31 13:36:58
○ 2026-03-18 03:35:34

○NSns.forpsi.us2008-03-23 → 2008-03-23 · 3 obs

● 2008-03-23 17:18:44
○ 2015-08-31 13:36:58
○ 2026-03-18 03:35:34

●NSns1.websupport.cz2026-02-18 → 2026-03-18 · 3 obs

○ 2021-04-10 14:41:50
● 2026-02-18 04:10:48
● 2026-03-18 03:35:34

●NSns2.websupport.cz2026-02-18 → 2026-03-18 · 3 obs

○ 2021-04-10 14:41:50
● 2026-02-18 04:10:48
● 2026-03-18 03:35:34

●NSns3.websupport.eu2026-02-18 → 2026-03-18 · 3 obs

○ 2021-04-10 14:41:50
● 2026-02-18 04:10:48
● 2026-03-18 03:35:34

○MXax.virusfree.cz2008-03-23 → 2008-03-23 · 3 obs

● 2008-03-23 17:18:44
○ 2015-08-31 13:36:58
○ 2026-03-18 03:35:34

○MXbx.virusfree.cz2008-03-23 → 2008-03-23 · 3 obs

● 2008-03-23 17:18:44
○ 2015-08-31 13:36:58
○ 2026-03-18 03:35:34

○MXcx.spamfree.cz2008-03-23 → 2008-03-23 · 3 obs

● 2008-03-23 17:18:44
○ 2015-08-31 13:36:58
○ 2026-03-18 03:35:34

○MXdx.spamfree.cz2008-03-23 → 2008-03-23 · 3 obs

● 2008-03-23 17:18:44
○ 2015-08-31 13:36:58
○ 2026-03-18 03:35:34

●A78.24.14.202015-08-31 → 2026-03-18 · 3 obs

○ 2008-03-23 17:18:44
● 2015-08-31 13:36:58
● 2026-03-18 03:35:34

○A81.2.194.1352008-03-23 → 2008-03-23 · 3 obs

● 2008-03-23 17:18:44
○ 2015-08-31 13:36:58
○ 2026-03-18 03:35:34

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cz	b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz, a.ns.nic.cz	-
so.cz	ns1.websupport.cz, ns2.websupport.cz, ns3.websupport.eu	-

✅ Authoritative Response

Server: 45.10.97.11

NS records: ns1.websupport.cz, ns2.websupport.cz, ns3.websupport.eu

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1112ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`78.24.14.20`
NS	3	`ns1.websupport.cz, ns2.websupport.cz...`
SOA	1	`ns1.websupport.cz admin.websupport.cz`

Analysis

Hierarchy

so.cz is the parent of www.so.cz.

IP Addresses

so.cz resolves to a single IP: 78.24.14.20.

Other host names, for instance ar.cz, ya.cz, building.cz, cy.cz and flexiskoleni.cz share IP numbers with so.cz.

Name Servers

so.cz delegates to three name servers: ns1.websupport.cz, ns2.websupport.cz and ns3.websupport.eu.

so.cz shares some name servers with other domains, for example aux.cz, vinarny.cz, elektlabs.com, mikrozone.sk and unnosport.cz.

Host names with two IP numbers:

ns1.websupport.cz: 2a10:bbc0::11 and 45.10.97.11

ns2.websupport.cz: 2a02:250:3::12 and 185.71.159.12

ns3.websupport.eu: 2a10:bbc0::13 and 45.10.97.13

so.cz - robtex.com

so.cz

cz

Subdomains

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

Hierarchy

IP Addresses

Name Servers

`so.cz`

`cz`