A domain name is the part of a website's address that appears between http:// (or https://) and the top-level domain, such as .com, .co.uk, or .org. For example, in https://www.example.com, "example" is the domain name.
Domain names serve as a human-readable address for websites, making it easier to locate and remember online content compared to numeric IP addresses. They can be registered from various domain registrars for a minimal fee, allowing individuals and businesses to establish a unique online presence. In photography, owning a domain name is important for portfolios, business websites, and promoting services online.