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Daily transfers

Chord diagram of domain transfers between registrars on June 5, 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 May 7, 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 June 5, 2025 and their evolution during the preceding 30 days

Country Domains Parked Trend
Czechia 1 367 637 17.5 %
Slovakia 29 101 40.7 %
USA 26 211 4.4 %
Germany 14 955 16.9 %
Poland 7 632 8.1 %
UK 6 212 9.4 %
China 5 333 1.1 %
France 4 729 10.4 %
Netherlands 4 075 12.8 %
Bulgaria 3 614 2.1 %
Austria 2 510 25.8 %
Switzerland 2 373 16.6 %
Ukraine 2 292 8.4 %
Denmark 2 193 5.3 %
Other 21 761 10.6 %

Czech regions

Domains by holder’s region of residence in Czechia – current numbers for June 5, 2025

Region Domains
Hlavní město Praha 427 961 427961
Jihomoravský 172 808 172808
Středočeský 147 968 147968
Moravskoslezský 103 428 103428
Zlínský 66 652 66652
Jihočeský 57 442 57442
Ústecký 53 323 53323
Královéhradecký 52 631 52631
Pardubický 51 932 51932
Olomoucký 48 227 48227
Plzeňský 48 092 48092
Unknown 40 732 40732
Vysočina 39 947 39947
Liberecký 39 746 39746
Karlovarský 16 748 16748

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 329 966 80 15
INTERNET-CZ 326 117 60 9
ACTIVE24 190 976 78 32
WEBGLOBE 150 895 66 15
GRANSY 133 435 34 13
other 129 975 35 12
ZONER 64 305 79 28
MEDIA4WEB 51 504 76 5
WEB4U 43 556 77 28
THINLINE 37 315 93 33
1API 21 517 0 3
WEBSUPPORT 21 117 24 46

Domain operations

Registry operations related to domains in the time period before June 6, 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 June 6, 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 June 6, 2025
rdap
RDAP protocol (successor to Whois)
unix
traditional Whois command-line interface
web
web interface