Which Domain Extensions are the Most Popular
You have two selections to make when choosing a domain name. One is the part to the left of the dot, called the second-level domain. The other is the part to the right of the dot, called the top-level domain.
Most people default to .COM as their choice for top-level domain, or TLD. Of course the domain .COM is incredibly popular; there are 150 million .COM domains registered.
But there are also hundreds of other top level domains. None of them rival .COM in terms of popularity, yet there’s a vast range in registrations for each domain.