business domain defines the company's overall area of activity. it's the service the company provides to its clients.
Why You Need a Business Domain Name?
Your domain name is the easiest way for someone to find your business online. Anyone searching for your business can just type your business domain name into the search or address bar, and your business website URL appears among the search engine page results (SERPs).
Alternatively, they can type the full URL into the browser bar to go straight to your website. Every domain name is also unique, allowing you to maintain brand ownership. When used for a website, the domain name is part of the URL.