It might seem obvious that creating a website is one use for a domain name. But don’t start by asking if you need a website. Start by asking what your website should do. Think of your website as a tool, both for you and for the people who you expect will visit your website.
Give a third-party or technical expert access to your domain’s management features without giving up ownership and control over your domain.
Your domain name choice can influence your search engine ranking, so you may want to consider SEO when picking a domain.