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DNS, short for Domain Name System, is a system used for resolving domain names into IP addresses. In other words, DNS translates human-readable web addresses (like into numeric IP addresses (like that computers use to identify and communicate with each other on the Internet. DNS works like an internet phone book, where domain names are associated with corresponding IP addresses, facilitating web navigation and access to websites.

In everyday life, DNS is essential for using the internet. When a user types a web address into their browser, like, DNS comes into play to find the IP address associated with that domain and direct the request to the correct server. Without DNS, users would need to remember and type the numeric IP addresses of every website they wish to visit, making internet use extremely complex. Besides web browsing, DNS is also used for other internet services, such as sending emails and accessing cloud services.

In Switzerland, DNS is managed and supported by various entities, including SWITCH, which is responsible for the registration of .ch and .li domains. The DNS infrastructures in Switzerland are designed to ensure a reliable and secure service, with redundant servers to prevent interruptions and DDoS attacks. Swiss internet providers and companies often offer secure DNS services to protect users from threats like phishing and malware. Additionally, Swiss authorities collaborate internationally to maintain the security and stability of the global DNS system, ensuring that citizens and businesses can enjoy a secure and uninterrupted internet experience.

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