Hundreds of millions of top-level domains are now registered, and you’d better believe that includes all the short, snappy, easily-brandable one-word domains.
Having a short and memorable domain comes with a lot of perks. For one, your users are much more likely to remember a domain like “www.photo.com” than “www.quality-stock-photos.com” or even “www.photoapp.com.”
Besides your audience, there are search rankings to think about, too: the shorter, more meaningful, and older your domain is, the higher you’re likely to be ranked in search results. Google still loves exact match domains (EMDs): domain names that match the exact keywords your target users are searching for, without any hyphens. Today, unregistered EMDs are hard to come by.
Longer domains tend to be difficult to remember, and can even look spammy to your visitors (and Google), especially if you have to use hyphens. And you also hazard the risk of people mixing up your domain name with another website – possibly even sending your potential visitors straight to your competitors.