What is the main function of DNS in internet communication?

The primary function of DNS (Domain Name System) in internet communication is to translate domain names into IP addresses. This process is essential because, while humans find it easier to remember and use domain names (like www.example.com), computers communicate using IP addresses (like 192.0.2.1).

When a user types a domain name into a browser, DNS servers resolve that name to the corresponding IP address, allowing the browser to locate the correct web server and establish a connection. This translation process is crucial for the functioning of the internet, as IP addresses are used to direct traffic accurately and efficiently.

Beneficially, this eliminates the need for users to remember complex numerical addresses, thus simplifying web navigation. The other choices, while related to internet services, do not represent the core function of DNS: boosting website search engine rankings pertains to SEO strategies, managing email services is a different aspect of network communication, and securing web traffic through encryption refers to protocols like HTTPS, which enhances security but is separate from the naming process that DNS facilitates.