Top .cz Websites & Domains

There are 654,652 active websites across 1,099,557 registered .cz domains (59.5% active). Here are some of the most popular .cz sites, the technologies they run, and the companies behind them.

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Download a free sample of the .cz websites list

Real rows from the list on this page. The file arrives by email.

250 rows
17 columns
CSV

Every column in the file

Popularity Rank
Domain
Company Name
Company Size
Year Founded
Industry
LinkedIn URL
Locality
Country
TLD
Language
Instagram
Twitter
YouTube
TikTok
Technologies Tracked
Premium Technologies

Column headings inside the file are written in English. Not every column is filled for every website.

A look at the file

Domain	Company Name	Technologies Tracked	Premium Technologies
idnes.cz	iDNES.cz	19	2
novinky.cz	Právo	12	0
uoou.gov.cz	Office for Personal Data Protection	11	1
coi.gov.cz	Česká obchodní inspekce	40	3

Total Domains Found: 1.1M
Technologies detected: 23,775
Active websites: 655K (59.5%)

Most popular .cz websites

by popularity

Local rank	Website	Global rank	StackSpend	Technologies detected
1	seznam.cz	788	$5.64K+	Envoy Yahoo Sender Hub Google Search Console Seznam Meta Business Suite
2	idnes.cz	1,104	$17.34K+	Anthropic Cisco Cloud Services DMARC Report Smart Emailing Microsoft 365
3	novinky.cz	1,301	$4.39K+	Apple iCloud Mail Google Search Console Microsoft 365 Envoy Seznam
4	livescore.cz	1,705	$3.84K+	Google Search Console LiveSport Cloudflare
5	google.cz	3,417	$2.72K+	Google Workspace Google Trust Services
6	uoou.gov.cz	4,023	$4.41K+	VSHosting Plesk Thawte Microsoft 365 DigiCert
7	nic.cz	4,824	$2.29K+	Django Microsoft 365 Python
8	coi.gov.cz	5,497	$14.8K+	Google APIs Elementor Pro Menu Icons by ThemeIsle jQuery ImagesLoaded DigiCert
9	alza.cz	5,714	$14.99K+	Symantec SSL Anthropic OpenAI JetBrains Idea Apple Business Connect
10	muni.cz	6,139	$14.13K+	Valimail Atlassian Statuspage Harica Apple Business Connect DigiCert
11	sportklub.cz	6,194	$338+	PRO-ZETA THINline Český hosting DNS
12	flash-sfx.cz	6,336	$3.85K+	Nette Framework Print Js Google reCAPTCHA Cookie Script SH.cz
13	volimtrikoloru.cz	6,364	$1.99K+	WordPress SmartEmailing DMARC WEDOS Internet Google Search Console Websupport DNS
14	dwarffortress.cz	6,789	$3.66K+	Mootools Webdos MX Webcomponents Template Polyfill WEDOS Internet Caption
15	csfd.cz	6,846	$3.8K+	Amazon Trust Services VSHosting Sectigo VSHosting DNS Anubis
16	nova.cz	6,903	$179K+	OpenAI Google Search Console Outlook for business Cisco Cloud Services Anthropic
17	blesk.cz	6,953	$1.91K+	Meta Business Suite Ringier Slovakia Media Google Search Console Cloudflare
18	windguru.cz	6,985	$1.9K+	DigiCert Websupport DNS Google Search Console WebSupport Email CASABLANCA
19	seznamzpravy.cz	7,148	$1.88K+	Azure Edge Network Meta Business Suite Seznam Google Search Console Envoy
20	boretice.cz	7,217	$1.87K+	igalileo Zoner MX Gransy s.r.o. SH.cz
21	vrbice.cz	7,293	$1.86K+	DigiCert Forpsi DNS Zoner MX
22	cejkovice.cz	7,450	$1.87K+	Forpsi DNS SH.cz igalileo Highslide JS Accordion
23	velkebilovice.cz	7,458	$101K+	Microsoft ASP.NET Outlook for business Snowplow Analytics Forpsi DNS Microsoft 365
24	allegro.cz	7,539	$5.59K+	Datadome Microsoft 365 Meta Business Suite Trend Micro Email Security Salesforce
25	sazka.cz	7,688	$113K+	Apple Business Connect H1 Sectigo Statuspage Snowplow Analytics
26	cra.cz	7,834	$463K+	Statuspage Microsoft 365 Apple Business Connect Cookiebot Craz
27	cuni.cz	7,876	$9.64K+	Harica Apple Business Connect Print Js CESNET DigiCert
28	sport.cz	7,918	$1.79K+	Seznam Microsoft 365 Azure Edge Network Envoy Apple Business Manager
29	bazos.cz	8,053	$392K+	Google Search Console SH.cz Cloudflare DNS Ahrefs
30	super.cz	8,120	$1.77K+	Apple Business Connect Envoy Microsoft 365 Azure Edge Network Seznam
31	datart.cz	8,442	$618K+	Outlook for business Sectigo Google Search Console Trust Provider SSL Mailgun
32	zidlochovice.cz	8,527	$1.72K+	Google Search Console Outlook for business Regzone DNS SH.cz Microsoft 365
33	praha-kunratice.cz	8,601	$1.71K+	Drupal WEDOS Internet Regzone DNS Zoner MX
34	krouna.cz	8,718	$1.87K+	BootstrapCDN (Stackpath) igalileo Bootstrap SH.cz Highslide JS
35	livesport.cz	8,741	$1.7K+	LiveSport Google Workspace
36	obehani.cz	8,767	$1.7K+	DigitalOcean Forpsi DNS
37	hostivice.cz	8,889	$1.9K+	OptoNet Communication Websupport.sk DNS Websupport DNS
38	bohunov.cz	8,934	$5.32K+	Antee Email Nette Framework Google reCAPTCHA Require Cs Websupport.sk DNS
39	extra.cz	8,967	$2.56K+	Didomi Cloudflare Google Publisher Tag Fortion Networks Rubicon Project
40	obec-kysice.cz	8,979	$1.87K+	Highslide JS Swiper Cloudflare CDN JS Galileo Corporation MX
41	kupi.cz	9,010	$92.85K+	Firebase Analytics Mailchimp jQuery Colorbox Snowplow Analytics Cloudflare Browser Insights
42	tjsokolprahakrc.cz	9,021	$4.02K+	Maxcdn HTML5 Shiv Actalis Awesome Min Forpsi DNS
43	toprecepty.cz	9,071	$1.9K+	Mailgun Cloudflare Google Search Console Outlook for business Amazon Web Services
44	tgmstafeta2020.cz	9,076	$338+	WEDOS Internet Wedos DNS
45	freevideo.cz	9,272	$1.87K+	Google Workspace Cloudflare DMARC Cloudflare
46	idos.cz	9,390	$1.11M+	Microsoft ASP.NET Webglobe DNS FASTER CZ CDN JS Google Analytics
47	sportklubnovemestonm.cz	9,626	$3.35K+	Google Search Console CodeIgniter THINline Meta Business Suite Print Js
48	sdn.cz	10,296	$10+	Varnish Google Search Console Seznam
49	mostbet-apk.cz	10,436	$1.59K+	Wpbakery Accordion Woocommerce Notices Vanilla Lazyload Godaddy DNS
50	prehrajto.cz	10,448	$1.56K+	Cloudflare DNS Google Workspace ServerZone Ecomail DMARC Mailchimp

This is 50 of 1,099,557 websites in .cz. Filter the full index by stack, keyword and location, then export it as CSV.

Download the full list

Language usage on .cz websites

by websites

01 Czech 404,081 77.1%
02 English 114,381 21.8%
03 Slovak 2,303 0.4%
04 German 1,421 0.3%
05 Polish 590 0.1%
06 Indonesian 462 0.1%
07 Russian 439 0.1%
08 French 231 0%
09 Other 430 0.1%

Top 25 companies using a .cz domain (out of 67,936)

by verified headcount

Company	Website	Founded	Employees	City/Location
Na Volné Noze	navolnenoze.cz	2005	10,001+	Ostrava
Česká Spořitelna	kariera.csas.cz	1825	5,001-10,000	Praha 4
Generali Česká Pojišťovna	generaliceska.cz	-	1,001-5,000	Praha
Česká Pošta	ceskaposta.cz	1993	1,001-5,000	Praha 1
O2 Czech Republic	o2.cz	2006	1,001-5,000	Praha
Kooperativa	koop.cz	-	1,001-5,000	Praha 8
Lidl Česká Republika	kariera.lidl.cz	-	1,001-5,000	Praha 5 – Stodůlky
🆙️ Úřad Práce ČR ⬆️	uradprace.cz	-	1,001-5,000	Dobrovského 25
UniCredit Bank CZ & SK	unicreditbank.cz	2007	1,001-5,000	Praha
Tesco Stores CR, A.s.	itesco.cz	-	1,001-5,000	Praha 10
T-Mobile Czech Republic A.s.	t-mobile.cz	-	1,001-5,000	Praha 4
Česká Televize	ceskatelevize.jobs.cz	1992	1,001-5,000	Praha 4
Seznam.cz	o.seznam.cz	1996	1,001-5,000	Praha
PAF	pifpaf.cz	2000	1,001-5,000	Olomouc
BILLA Česká Republika	billa.cz	1990	1,001-5,000	Říčany
Kaufland Česká Republika V.o.s.	kaufland.cz	1998	1,001-5,000	Praha 6
Albert Česká Republika	albert.cz	-	1,001-5,000	Praha
České Dráhy, A.s.	ceskedrahy.cz	-	1,001-5,000	Praha 1
CETIN	cetin.cz	2015	1,001-5,000	Prague
OVB Allfinanz A.s.	ovb.cz	1970	1,001-5,000	Praha 4
PENNY Česká Republika	penny.cz	-	1,001-5,000	Radonice
ORLEN Unipetrol	orlenunipetrol.cz	1994	1,001-5,000	Prague
Czech Radio	rozhlas.cz	1923	1,001-5,000	Praha 2
Metrostav A.s.	metrostav.cz	1971	1,001-5,000	Prague
Ministerstvo Vnitra	mv.gov.cz	1993	1,001-5,000	Praha

Companies using .cz domains by industry

top 12

01 information technology and services 3,610 19.6%
02 marketing and advertising 2,964 16.1%
03 Construction 1,733 9.4%
04 Retail 1,521 8.3%
05 management consulting 1,519 8.3%
06 Real Estate 1,329 7.2%
07 Wholesale 1,203 6.5%
08 Financial Services 1,158 6.3%
09 computer software 921 5%
10 Industrial Automation 831 4.5%
11 machinery 831 4.5%
12 sports 776 4.2%

Companies using .cz by employee count

50.07K companies

Most used technologies on .cz websites

by websites

#	Technology	Category	Websites
01	WordPress	Content Management	164,800
02	Wedos DNS	DNS Services	147,532
03	Google Search Console	Marketing & SEO	139,452
04	WEDOS Internet	Hosting & Infrastructure	121,365
05	Forpsi DNS	DNS Services	118,243
06	Websupport.sk DNS	DNS Services	95,159
07	Bootstrap	Web Design Tools	93,846
08	Websupport DNS	DNS Services	86,529
09	Cloudflare	Hosting & Infrastructure	85,716
10	OpenResty	Development Utilities	82,556
11	Webglobe	Hosting & Infrastructure	59,876
12	Microsoft 365	Business Operations	53,846
13	MasterDC	Hosting & Infrastructure	47,092
14	CASABLANCA	Hosting & Infrastructure	46,190
15	Awesome Min	Business Operations	44,747

Technology usage on .cz websites by category

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