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Daily transfers

Chord diagram of domain transfers between registrars on April 23, 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 25, 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 23, 2025 and their evolution during the preceding 30 days

Country Domains Parked Trend
Czechia 1 366 091 17.4 %
Slovakia 29 034 40.8 %
USA 26 927 4.8 %
Germany 15 149 16.2 %
Poland 7 726 8.1 %
UK 6 190 9.9 %
China 5 437 3.3 %
France 5 101 9.2 %
Netherlands 4 108 12.9 %
Bulgaria 3 568 3.1 %
Austria 2 508 25.4 %
Switzerland 2 447 16.6 %
Ukraine 2 203 12.3 %
Denmark 2 190 5 %
Other 21 732 10.7 %

Czech regions

Domains by holder’s region of residence in Czechia – current numbers for April 23, 2025

Region Domains
Hlavní město Praha 427 506 427506
Jihomoravský 172 343 172343
Středočeský 147 993 147993
Moravskoslezský 103 382 103382
Zlínský 66 617 66617
Jihočeský 57 335 57335
Ústecký 53 391 53391
Královéhradecký 52 360 52360
Pardubický 51 927 51927
Olomoucký 48 141 48141
Plzeňský 47 943 47943
Unknown 41 022 41022
Vysočina 39 796 39796
Liberecký 39 608 39608
Karlovarský 16 727 16727

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 325 846 81 14
INTERNET-CZ 325 349 60 9
ACTIVE24 191 228 77 32
WEBGLOBE 150 860 67 15
GRANSY 136 587 34 13
other 130 054 36 12
ZONER 64 290 79 29
MEDIA4WEB 51 542 75 5
WEB4U 43 867 77 28
THINLINE 37 171 60 33
1API 22 309 0 4
WEBSUPPORT 20 756 14 47

Domain operations

Registry operations related to domains in the time period before April 24, 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 24, 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 24, 2025
rdap
RDAP protocol (successor to Whois)
unix
traditional Whois command-line interface
web
web interface