Including the www subdomain seems to boil down to two conditions.
Cookies - Will setting cookies at
*.example.comcause me grief (incur more traffic) because the cookies will be sent with every request, regardless of subdomain. In this case I would opt to use thewwwsince it gives me the choice of setting cookies at*.exmaple.comif I need it (ex. authenticated user cookie), orwww.example.comto reduce traffic to my other subdomains.Aesthetic - Do I care a lot about how the domain looks? If I really hate the
wwwbut am worried about the cookie traffic, I could alleviate the problem by hosting my static content on a whole new domain such asstatic-example.comwhich would remain cookie free.
