.ch is the country code top-level domain (ccTLD) for Switzerland in the Domain Name System of the Internet. Made available in 1987, only two years after .com, it is administered by SWITCH Information Technology Services.
|Introduced||20 May 1987|
|TLD type||Country code top-level domain|
|Registry||SWITCH Information Technology Services|
|Sponsor||SWITCH Information Technology Services|
|Intended use||Entities connected with Switzerland|
|Actual use||Very popular in Switzerland and also used around the world for domain hacks|
|Registered domains||2,459,804 (15 November 2021)|
|Registration restrictions||Two letter domain names are restricted to cantons|
|Structure||Registrations permitted at second level|
|Documents||Terms and conditions|
|Dispute policies||Dispute Resolution Proceedings|
The domain ch, as with other ccTLDs, is based on the ISO 3166-2 code for Switzerland derived from Confoederatio Helvetica (Helvetic Confederation), the Latin name for the country, which was used because of its neutrality with regard to the four official languages of Switzerland.
Second-level domain names must be at least three letters long. Two-letter subdomain names are restricted to the Swiss cantons, as well as the domain ch.ch of the Federal Chancellery of Switzerland. The only exception has been the former domain of the Expo.02 which was held in Switzerland, www.expo.02.ch.