Who administers my domain name? Who can I contact if changes are necessary?
For everything concerning your .ch domain name, please contact the registrar of the domain name in question. If you are unsure which registrar is administering your domain name: Find customer service
General questions about domain names
What is a domain name? What's the point of a domain name? How and where can I register domain names? What is a registrar? How can I change my registrar? What rules apply for domain names? Plus other topics.
How is internet crime relevant to your website and your domain name? Even your website can be misused for criminal activities. Here you can read about potential threats and what SWITCH is doing to combat the misuse of domain names.
IDN - Internationalized Domain Names
Information on domain names with umlauts and accents.
DNSSEC is an extension of the domain name system (DNS), which serves to ensure the authenticity and integrity of the data in DNS answers.
CDS Status Check
With a CDS record (Child DS record), the name server operator can transfer the required data to the registry to activate, renew or deactivate DNSSEC for a domain name. With our CDS Status Check, you can check whether the changes transferred via CDS are correct and will be published.
Domain Check (Whois-is)
Domain Check tells you whether or not a particular domain name can be registered. You should use this rather than the Whois service if you wish to provide a search function for .ch and .li domain names on your website or in your application.
Definitions of domain name and Internet terms.