Row

Daily transfers

Chord diagram of domain transfers between registrars on May 10, 2026
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 April 11, 2026

Row

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 May 10, 2026 and their evolution during the preceding 30 days

Country Domains Parked Trend
Czechia 1 406 183 13.5 %
Slovakia 30 740 40.1 %
USA 23 569 6.5 %
Germany 15 762 15.8 %
China 15 410 4.7 %
Poland 8 713 8 %
UK 6 579 7.4 %
France 4 718 10.4 %
Ukraine 4 579 7.7 %
Netherlands 4 212 13.8 %
Bulgaria 3 276 2.1 %
Austria 2 840 22.8 %
Italy 2 833 9.9 %
Switzerland 2 415 15.1 %
Other 23 131 12.5 %

Czech regions

Domains by holder’s region of residence in Czechia – current numbers for May 10, 2026

Region Domains
Hlavní město Praha 440 026 440026
Jihomoravský 177 668 177668
Středočeský 152 002 152002
Moravskoslezský 106 434 106434
Zlínský 68 497 68497
Jihočeský 60 633 60633
Ústecký 54 797 54797
Pardubický 54 425 54425
Královéhradecký 52 999 52999
Olomoucký 50 178 50178
Plzeňský 49 987 49987
Vysočina 40 876 40876
Liberecký 40 718 40718
Unknown 39 616 39616
Karlovarský 17 327 17327

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 354 669 78 4
INTERNET-CZ 330 478 62 7
ACTIVE24 192 435 85 33
WEBGLOBE 151 305 73 16
GRANSY 149 082 31 11
other 130 555 34 11
ZONER 63 745 80 5
MEDIA4WEB 51 119 77 5
WEB4U 42 683 77 28
THINLINE 41 982 93 30
WEBSUPPORT 24 077 87 47
KEYSYSTEMS 22 180 5 13

Domain operations

Registry operations related to domains in the time period before May 11, 2026
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 May 11, 2026
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 May 11, 2026
rdap
RDAP protocol (successor to Whois)
unix
traditional Whois command-line interface
web
web interface