Why are websites formatted as domains rather than just IP addresses?

Websites are formatted as domains rather than just IP addresses primarily to make them easier for people to use. Human memory is far more adept at recalling names than numerical IP addresses. Domains provide a simpler and more intuitive way for users to access websites. For example, it is much easier to remember "www.example.com" than its corresponding IP address, such as "192.0.2.1." This usability aspect encourages broader internet adoption, allowing people who may not have extensive technical knowledge to navigate online services with ease.

The use of domain names also supports the structure of the internet, enabling various services and applications to be accessed effortlessly without requiring users to remember or input complex numerical sequences. Additionally, domain names can relate to the content or purpose of the website, providing users with context and aiding in brand recognition.