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Daily transfers

Chord diagram of domain transfers between registrars on June 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 May 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 June 28, 2025 and their evolution during the preceding 30 days

Country Domains Parked Trend
Czechia 1 367 939 17.3 %
Slovakia 29 033 40.9 %
USA 25 663 4.5 %
Germany 14 952 17 %
Poland 7 652 8.4 %
UK 6 361 9.7 %
China 5 296 0.9 %
France 4 777 11.1 %
Netherlands 4 089 12.8 %
Bulgaria 3 638 2.1 %
Austria 2 521 25.5 %
Ukraine 2 371 10 %
Switzerland 2 356 15.8 %
Denmark 2 166 5.3 %
Other 21 699 11 %

Czech regions

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

Region Domains
Hlavní město Praha 428 274 428274
Jihomoravský 172 926 172926
Středočeský 147 915 147915
Moravskoslezský 103 359 103359
Zlínský 66 873 66873
Jihočeský 57 462 57462
Ústecký 53 237 53237
Královéhradecký 52 669 52669
Pardubický 51 829 51829
Olomoucký 48 318 48318
Plzeňský 48 072 48072
Unknown 40 513 40513
Vysočina 39 942 39942
Liberecký 39 761 39761
Karlovarský 16 789 16789

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 331 425 80 14
INTERNET-CZ 326 305 60 8
ACTIVE24 190 944 85 33
WEBGLOBE 150 654 66 15
GRANSY 132 839 34 13
other 128 864 36 12
ZONER 64 481 79 28
MEDIA4WEB 51 398 76 5
WEB4U 43 470 77 28
THINLINE 37 584 93 33
WEBSUPPORT 21 317 28 47
1API 20 991 0 3

Domain operations

Registry operations related to domains in the time period before June 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 June 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 June 29, 2025
rdap
RDAP protocol (successor to Whois)
unix
traditional Whois command-line interface
web
web interface