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Daily transfers

Chord diagram of domain transfers between registrars on April 28, 2025
A chord diagram represents flows between several entities, each represented by a segment on the outer part of the circular layout. Chords (arcs) are drawn between each pair of entities, representing bi-directional transfers between them. The size of a chord is proportional to the magnitude of the flow.

Monthly transfers

Heatmap of domain transfers between registrars since March 30, 2025

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Domains

Number of second-level domains registered in .CZ
The domain counts correspond to the end of each year, and the present day for the current year.

Countries

Domains by country of holders’ residence – current numbers for April 28, 2025 and their evolution during the preceding 30 days

Country Domains Parked Trend
Czechia 1 366 046 17.4 %
Slovakia 29 043 40.9 %
USA 26 850 4.4 %
Germany 15 132 16.4 %
Poland 7 608 8.2 %
UK 6 184 9.9 %
China 5 434 1.4 %
France 5 060 10.5 %
Netherlands 4 099 12.8 %
Bulgaria 3 583 2.9 %
Austria 2 508 25.8 %
Switzerland 2 438 16.9 %
Ukraine 2 214 10.1 %
Denmark 2 188 4.9 %
Other 21 757 10.6 %

Czech regions

Domains by holder’s region of residence in Czechia – current numbers for April 28, 2025

Region Domains
Hlavní město Praha 427 410 427410
Jihomoravský 172 405 172405
Středočeský 147 972 147972
Moravskoslezský 103 385 103385
Zlínský 66 629 66629
Jihočeský 57 338 57338
Ústecký 53 368 53368
Královéhradecký 52 364 52364
Pardubický 51 903 51903
Olomoucký 48 144 48144
Plzeňský 47 972 47972
Unknown 40 967 40967
Vysočina 39 821 39821
Liberecký 39 624 39624
Karlovarský 16 744 16744

Holders

Holders by country of residence

Bar chart on the left initially displays current counts of holders. Click the “Play” button to animate the chart or manually drag the slider.

Slope graph on the right shows the changes in the top list of foreign holders over the last 4 years.

Registrars

Domains by registrars - current numbers and changes in the top list of registrars over last 4 years

Registrar Domains DNSSEC (%) Parked (%)
WEDOS 326 142 81 14
INTERNET-CZ 325 433 60 9
ACTIVE24 191 134 77 32
WEBGLOBE 150 860 67 15
GRANSY 136 225 34 13
other 130 030 36 12
ZONER 64 305 79 28
MEDIA4WEB 51 551 75 5
WEB4U 43 703 77 28
THINLINE 37 201 72 33
1API 22 237 0 3
WEBSUPPORT 20 769 15 47

Domain operations

Registry operations related to domains in the time period before April 29, 2025
Check
Check availability of a domain
Create
Create a domain
Delete
Delete a domain
Info
Get info about a domain
Renew
Renew a domain
SendAuthInfo
Send authorization info associated with a domain
Transfer
Transfer a domain
Update
Update a domain

Contact operations

Registry operations related to contacts in the time period before April 29, 2025
Check
Check availability of a contact
Create
Create a contact
Delete
Delete a contact
Info
Get info about a contact
SendAuthInfo
Send authorization info associated with a contact
Transfer
Transfer a contact
Update
Update a contact

Whois requests

Whois requests by user interface in the week before April 29, 2025
rdap
RDAP protocol (successor to Whois)
unix
traditional Whois command-line interface
web
web interface