This is one of the most popular questions for new website owners. Should I use www in my website URL? So www or no www website. There are many technical aspects to address this dilemma and there is no definite answer for a reason it could be a matter of taste or brand name boundaries. For a low traffic web site, that handles mostly static content and does not require cookies URL address without www might be an effective marketing solution. Such name is short (at least four characters shorter), quicker to type and better associates with a brand name. For high traffic web site, with multiple subdomains, necessity to handle user authentication across subdomains and share cookies, the only choice is www subdomain in website URL As cookies can be shared between the naked domain and subdomains. Another reason security and possible server failure. Would you need to quickly redirect traffic from one server to another you will need DNS CNAME records, but the naked domain cannot have a CNAME record.