🇨🇿
.cz
ccTLD zone · operated by CZ.NIC
1.3M
Zone size
1,374
Operators
Moderate
Concentration
Top operators in .cz by domains in the zone
1 wedos.comindependent 254K.cz domains 18.9% +0.1%
2 forpsi.czAruba Group 191K.cz domains 14.3% −0.3%
3 websupport.skTeam Blue 168K.cz domains 12.5% +2.6%
4 cloudflare.comindependent 84K.cz domains 6.2% +7.7%
5 regzone.czindependent 49K.cz domains 3.6% −0.3%
6 webglobe.skGroup One 48K.cz domains 3.6% +0%
7 thinline.czindependent 42K.cz domains 3.1% +0.1%
8 rdrhost.comindependent 38K.cz domains 2.9% +0%
9 onebit.czindependent 35K.cz domains 2.6% −1.1%
10 Register.itTeam Blue 33K.cz domains 2.5% −1.1%
11 gransy.comindependent 32K.cz domains 2.4% −0.8%
12 web4u.czGroup One 32K.cz domains 2.4% −0.6%
13 ignum.comindependent 29K.cz domains 2.2% −0.9%
14 blueboard.czindependent 16K.cz domains 1.2% −0.3%
15 GigaServer.czindependent 16K.cz domains 1.2% −0.5%
16 vas-hosting.euindependent 14K.cz domains 1.1% +0.2%
17 domainmaster.czindependent 14K.cz domains 1% −0.3%
18 godaddy.comGodaddy 12K.cz domains 0.9% −0.5%
19 wix.comindependent 10K.cz domains 0.8% −2.3%
20 shoptet.czindependent 10K.cz domains 0.7% −1.3%
21 tele3.czindependent 9K.cz domains 0.7% −1.8%
22 endora.czindependent 9K.cz domains 0.7% +0%
23 parkingcrew.netindependent 8K.cz domains 0.6% −0.6%
24 svethostingu.czindependent 7K.cz domains 0.5% −6.6%
25 xundns.comindependent 6K.cz domains 0.4% +4.9%
26 dnsip.comindependent 5K.cz domains 0.4% +1.8%
27 netsto.netindependent 5K.cz domains 0.4% +3.3%
28 emailprofi.czindependent 5K.cz domains 0.3% +0.2%
29 Amazonindependent 5K.cz domains 0.3% +0.1%
30 hostinger.comindependent 4K.cz domains 0.3% +0%
31 hukot.czindependent 4K.cz domains 0.3% +0.9%
32 profiwh.comindependent 4K.cz domains 0.3% −0.3%
33 pipni.czindependent 4K.cz domains 0.3% −1.2%
34 active24.czTeam Blue 4K.cz domains 0.3% −56.6%
35 webkitty.euindependent 4K.cz domains 0.3% +1.1%
36 cscglobal.comindependent 4K.cz domains 0.3% −0.2%
37 web4ce.czindependent 3K.cz domains 0.3% −0.9%
38 golemos.comindependent 3K.cz domains 0.2% −1.4%
39 ovh.comindependent 3K.cz domains 0.2% −0.5%
40 hosting90.czindependent 3K.cz domains 0.2% −1.3%
41 nethost.czindependent 3K.cz domains 0.2% −0.8%
42 abzone.czindependent 3K.cz domains 0.2% −0.6%
43 antee.czindependent 3K.cz domains 0.2% +0%
44 vshosting.czindependent 3K.cz domains 0.2% −1.4%
45 banan.czindependent 3K.cz domains 0.2% −1.2%
46 dynadot.comindependent 2K.cz domains 0.2% +15.2%
47 fortion.czindependent 2K.cz domains 0.2% −1.2%
48 one.czindependent 2K.cz domains 0.2% −0.6%
49 united-domains.deUnited Internet 2K.cz domains 0.2% −0.4%
50 webzdarma.czindependent 2K.cz domains 0.1% −0.7%
51 ns.deindependent 2K.cz domains 0.1% +1.7%
52 nsone.netindependent 2K.cz domains 0.1% +4.2%
53 vercel.comindependent 2K.cz domains 0.1% +6.6%
54 gandi.netYour Online 2K.cz domains 0.1% +3.3%
55 alibaba.comindependent 2K.cz domains 0.1% +4.2%
56 hostcreators.skindependent 2K.cz domains 0.1% −0.1%
57 kraxnet.comindependent 2K.cz domains 0.1% −1.1%
58 aziendeitalia.comindependent 2K.cz domains 0.1% −0.6%
59 aerohosting.czindependent 2K.cz domains 0.1% −0.1%
60 webhouse.skindependent 2K.cz domains 0.1% −1.9%
61 netio.czindependent 2K.cz domains 0.1% −0.8%
62 markmonitor.comMarkmonitor Group 2K.cz domains 0.1% −0.5%
63 azure-dns.comindependent 2K.cz domains 0.1% +1.3%
64 servis-domen.czindependent 1K.cz domains 0.1% +0.7%
65 key-systems.netTeam Internet 1K.cz domains 0.1% +2.7%
66 aspone.czindependent 1K.cz domains 0.1% −0.9%
67 eurodns.comNamespace 1K.cz domains 0.1% −1.9%
68 master.czindependent 1K.cz domains 0.1% −0.8%
69 digitalocean.comindependent 1K.cz domains 0.1% −1.4%
70 Name.comIdentity Digital 1K.cz domains 0.1% +39.1%
71 exon.ioindependent 1K.cz domains 0.1% +4.8%
72 exohosting.czindependent 1K.cz domains 0.1% +0.2%
73 home.plUnited Internet 1K.cz domains 0.1% −1.3%
74 DNS.comindependent 1K.cz domains 0.1% +0.8%
75 microsoft.comindependent 1K.cz domains 0.1% −0.1%
76 hetzner.deindependent 1K.cz domains 0.1% +3.5%
77 openprovider.nlindependent 1K.cz domains 0.1% −2.7%
78 best-hosting.czindependent 985.cz domains 0.1% −1.7%
79 rozhled.czindependent 955.cz domains 0.1% −0.6%
80 siteground.netindependent 900.cz domains 0.1% −0.4%
81 webmium.comindependent 896.cz domains 0.1% −0.6%
82 netim.netindependent 853.cz domains 0.1% +0.8%
83 webareal.czindependent 846.cz domains 0.1% −0.7%
84 o2.czindependent 843.cz domains 0.1% +0.1%
85 sedo.comUnited Internet 826.cz domains 0.1% −10.3%
86 internetx.comUnited Internet 799.cz domains 0.1% +0.3%
87 comlaude.comMarkmonitor Group 791.cz domains 0.1% −0.1%
88 dnsbackup.netindependent 773.cz domains 0.1% −2.2%
89 sh.czindependent 724.cz domains 0.1% −2%
90 cloud.google.comindependent 692.cz domains 0.1% −0.9%
91 onlinehosting.czindependent 677.cz domains 0.1% −0.3%
92 nameshield.netindependent 670.cz domains 0% −0.3%
93 axfone.czindependent 642.cz domains 0% −0.8%
94 Above.comindependent 631.cz domains 0% −2.9%
95 redirect.hostindependent 612.cz domains 0% −1.9%
96 domaindiscount24.comTeam Internet 596.cz domains 0% −1.8%
97 One.comGroup One 583.cz domains 0% −1.9%
98 ionos.comUnited Internet 555.cz domains 0% −24.7%
99 cloudns.netindependent 544.cz domains 0% +9.5%
100 brandshelter.comTeam Internet 527.cz domains 0% −1.9%
Zone momentum domains in zone · 12 months
1.3M
.cz now
+3K
Net / month
Fast movers 30d · % change
Fastest growing
1Name.com+39.1%
2dynadot.com+15.2%
3cloudns.net+9.5%
4cloudflare.com+7.7%
Losing ground
1active24.cz−56.6%
2ionos.com−24.7%
3sedo.com−10.3%
4svethostingu.cz−6.6%

About this data

How it is collected. Market Insights is built entirely from publicly observable data: domains seen across the internet and the DNS servers that answer for them. We attribute each domain to a provider based on the DNS infrastructure serving it, and aggregate those signals into the figures shown here.

Why it can differ from reality. This is an automated estimate, not an official registry. A provider’s real footprint can be higher or lower than shown, especially when it does not use its own DNS servers to host customer domains (for example, when those domains sit on a registrar’s, reseller’s or third-party cloud DNS). Coverage, timing and DNS configuration all affect what we can see.

The tool is neutral and provided “as is”. The same automated method is applied to every provider, with no manual ranking, no favoritism and no paid placement. These figures are published for informational purposes only, without any warranty of accuracy or completeness, and we accept no liability for any discrepancies or for decisions made based on this data.

Think a company is under-counted? We’d genuinely like to fix it. Send us your domain list or report your DNS servers, and we’ll review the attribution.