.cz

.cz is the country code top-level domain (ccTLD) for the Czech Republic. It is administered by CZ.NIC. Registrations must be ordered via accredited domain name registrars.

.cz
Introduced13 January 1993
TLD typeCountry code top-level domain
StatusActive
RegistryCZ.NIC
SponsorCZ.NIC
Intended useEntities affiliated with the Czech Republic
Actual useVery popular in the Czech Republic
Registered domains1,464,124 (2022-12-14)[1]
Registration restrictionsBusinesses must provide tax registration number
StructureNames can be registered directly at second level
DocumentsRules Juridical verdicts
Dispute policiesProblems
DNSSECyes
Registry websitenic.cz

Until Czechoslovakia was dissolved in 1993, it used the domain .cs.

The maximum domain name length permitted is 63 characters, which may only be alphanumeric or the hyphen (-). Hyphens are restricted in that they may not be the first or last character, neither may they appear consecutively.[2] As of 2013, there are six domains which use the maximum of 63 characters.[3]

History

The .cz domain came into effect in January 1993, following the dissolution of Czechoslovakia.[4] In 2009, new European Union legislation came into effect, allowing the use of diacritics in second-level domains under the .eu domain only. Czech customers were among the most interested in the new domains, only Germans bought more, with the French in third. The .cz domain, operated by the CZ.NIC association, continued to only offer standard characters, citing insufficient demand and lower accessibility from abroad as reasons behind their decision.[5]

Over 850,000 internet sites had been registered as .cz by the end of 2011.[6] In 2012, the number exceeded one million.[4] The Czech Republic was therefore the 12th European Union member state with a top-level domain to top a million active domain names.[7]

At the end of 2011, CZ.NIC reported that ownership of all domains, 58% were by individuals, whereas those held by organisations accounted for a minority of 42%.[6] Domains were most popular in Prague, followed by Brno and Ostrava.[6]

References
  1. "Počet .cz domén - Statistiky CZ". old-stats.nic.cz. 2022-12-13. Archived from the original on 2022-12-14. Retrieved 2022-12-14.
  2. "Rules of Domain Name Registration Under ccTLD .cz" (PDF). Retrieved 21 January 2014.
  3. "10 domains with the highest number of characters". CZ.NIC. Retrieved 21 January 2014.
  4. Willoughby, Ian (21 November 2012). "Millionth internet site with Czech .cz domain name registered". Radio Prague. Retrieved 21 January 2014.
  5. Borufka, Sarah (11 December 2009). "New EU regulation allows use of diacritics for certain web domains". Radio Prague. Retrieved 21 January 2014.
  6. "2011 Annual Report" (PDF). CZ.NIC. Retrieved 21 January 2014.
  7. ".CZ Reaches One Million Active Domains". domainpulse.com. 23 November 2012. Archived from the original on 21 January 2014. Retrieved 21 January 2014.
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