View source for .cs

{{Short description|Internet country code top-level domain for Czechoslovakia}}{{For|the programming language C#, which commonly uses the filename extension {{mono|.cs}}|C Sharp (programming language)}}

{{Infobox Top level domain|
name=.cs|
background=#CCC|
image=|
introduced={{circa|1990}}|
removed = {{circa|1995}}|
type=[[Country code top-level domain]]|
status=Discontinued|
registry=None|
sponsor=None|
intendeduse=Entities connected with {{TCH}} (originally, until deleted) and later {{SCG}} (reserved, but never used)|
actualuse=Was fairly heavily used in [[Czechoslovakia]] and [[Counter Strike]]-related websites until discontinued in favor of [[.cz]] and [[.sk]]; never used while [[Serbia and Montenegro]] existed|
restrictions=No registrations are now taking place|
structure=Not in root|
document=|
disputepolicy=None|
website=None|}}

'''.cs''' was for several years the [[country code top-level domain]] (ccTLD) for [[Czechoslovakia]]. However, the [[Dissolution of Czechoslovakia|country split]] into the [[Czech Republic]] and [[Slovakia]] in 1993, and the two new countries were soon assigned their own ccTLDs: [[.cz]] and [[.sk]] respectively. The use of .cs was gradually phased out, and the ccTLD was deleted some time around January 1995.

.cs domain first appeared in [[Internet Assigned Numbers Authority]] tables in autumn 1990 and in June 1991 in [[Réseaux IP Européens Network Coordination Centre|RIPE]] list. In October 1991 first domain was registered (iac.cs - Institute of Applied Cybernetics in Bratislava), in February 1992 first [[server (computing)|hosts]] existed. As of December 1992 40 domains were registered, while maximum number of 114 registered domains was reached in November 1993 and February 1994.<ref>{{Citation | first = Jiří | last = Peterka | title = Historie prvního milionu | pages = 32 | url = https://www.nic.cz/public_media/IT12/prezentace/IT12_Jiri_Peterka.pdf | language = cs }}</ref>

Until the deletion of [[.yu]] in 2010, .cs was the most heavily used [[top-level domain]] ever to be deleted. Statistics from the [[RIPE|RIPE Network Coordination Centre]] show that even in June 1994, after much of the conversion to .cz and .sk had been done, .cs still had over 2,300 [[server (computing)|hosts]]. By comparison, other deleted TLDs ([[.nato]] and [[.zr]]) may never have reached 10 hosts.{{Citation needed|date=July 2008}}

In July 2003, CS became the [[ISO 3166-1]] code for [[Serbia and Montenegro]] ('''''S'''rbija i '''C'''rna Gora'' in [[Serbian language|Serbian]]), and remained so until 2006, when the country split and the codes for domains [[.rs]] and [[.me]] were created. However, Serbia and Montenegro did not use .cs as its ccTLD, but continued instead to use the [[Yugoslavia]]n ccTLD [[.yu]] until it finally expired on 30 March 2010.<ref name="rnids-home">
{{cite web
|url= https://www.rnids.rs/en/what-s-new/yu-domain-becomes-history
|title= RNIDS news |publisher= RNIDS
|access-date= 30 March 2010
|archive-url= https://web.archive.org/web/20100201171046/http://www.rnids.rs/en/node/67
|archive-date= 1 February 2010 |url-status= live |df= dmy
|date= 2010-03-30 }}
</ref>

== References ==
{{Reflist}}

==External links==
* {{in lang|sr}} [http://www.elitesecurity.org/t20025-Srbija-Crna-Gora-koje-ce-biti-ime-domena-Internet-domen-Srbije-RS-SS-SP-SQ-SW-ili-SX "Srbija i Crna Gora - koje će biti ime domena? Internet domen Srbije: RS, SS, SP, SQ, SW ili SX"] {{Webarchive|url=https://web.archive.org/web/20191121192849/https://www.elitesecurity.org/t20025-Srbija-Crna-Gora-koje-ce-biti-ime-domena-Internet-domen-Srbije-RS-SS-SP-SQ-SW-ili-SX |date=2019-11-21 }}, Elitesecurity, February 5, 2003.
* [http://www.muzeuminternetu.cz/docs/eunetcs.php3 List of .cs domains in September 1992]

{{ccTLD}}

{{DEFAULTSORT:Cs}}
[[Category:Country code top-level domains]]
[[Category:Czechoslovakia]]
[[Category:Serbia and Montenegro]]


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