There was a time when the internet highway wasn't clogged the way it is now. These days everyone has a website; even the family dog has a social media account to showcase his latest, greatest, doggy accomplishment.
Of course, you probably know a 12-year-old who can design your site. Don't hire him or her. There are places to save a dollar, and website design and implementation isn't it. Your reputation, as an author, depends on how good you look online.