When you go to register your domain name you’ll be asked one very important question. Do you want your domain name to include www or not? For search engine optimization purposes it doesn’t really matter which one you choose. There are no special benefits to having it either way. Even for marketing and branding purposes, one is about as good as another. Why then do the registrars ask?
Well, it’s really academic. When a user types in your domain name into their browser then their web brower returns the information for the specific location requested. If your site sits at www.mysite’sname.com and the user types in the domain name with the www, they wont’ find your website. They’ll likely just get a 404 error page UNLESS you have your DNS servers pointed at the domain name that you want them to find. In other words, you need to point the non-www domain name to the domain name that uses the www.
A group of non-governmental governors who are responsble for issuing domain names have decided that only one domain name will be appointed for each pairing of www and non-www URLs. Simply put, that means that our website’s domain is peckerwilly dot com then no one else will be able to register the peckerwilly dot come with a www preceding. If you want to get traffic from both domain names (and you should) then you’ll need to redirect one to the other. That is done through your host’s cpanel and if you don’t know how to do that you can contact your host to assist you.