Row

Daily transfers

Chord diagram of domain transfers between registrars on May 20, 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 21, 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 20, 2026 and their evolution during the preceding 30 days

Country Domains Parked Trend
Czechia 1 407 802 13.5 %
Slovakia 30 821 40.1 %
USA 23 739 6.5 %
China 15 819 4.7 %
Germany 15 811 15.8 %
Poland 8 836 8 %
UK 6 642 7.4 %
Ukraine 4 892 7.7 %
France 4 699 10.4 %
Netherlands 4 231 13.8 %
Bulgaria 3 282 2.1 %
Austria 2 870 22.8 %
Italy 2 782 9.9 %
Switzerland 2 422 15.1 %
Other 23 457 12.5 %

Czech regions

Domains by holder’s region of residence in Czechia – current numbers for May 20, 2026

Region Domains
Hlavní město Praha 440 595 440595
Jihomoravský 177 841 177841
Středočeský 152 120 152120
Moravskoslezský 106 514 106514
Zlínský 68 575 68575
Jihočeský 60 736 60736
Ústecký 54 882 54882
Pardubický 54 517 54517
Královéhradecký 53 054 53054
Olomoucký 50 274 50274
Plzeňský 50 065 50065
Vysočina 40 927 40927
Liberecký 40 755 40755
Unknown 39 594 39594
Karlovarský 17 353 17353

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 355 092 78 4
INTERNET-CZ 330 987 62 7
ACTIVE24 192 532 85 33
WEBGLOBE 151 340 73 16
GRANSY 150 222 31 11
other 131 000 34 11
ZONER 63 794 80 5
MEDIA4WEB 51 061 77 5
WEB4U 42 684 77 28
THINLINE 42 100 93 30
WEBSUPPORT 24 174 87 47
KEYSYSTEMS 22 510 5 13

Domain operations

Registry operations related to domains in the time period before May 21, 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 21, 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 21, 2026
rdap
RDAP protocol (successor to Whois)
unix
traditional Whois command-line interface
web
web interface