What’s the point in having “www” in a URL?
Why do we prepend our URLs with "www", isn't
http:// enough? Its clearly not necessarily because it is omissible.
However there is a particular circumstance where the use of "www" breaks the URL, when there is a subdomain.
Almost everytime I tell a non technical person to go to a url like
blog.stackoverflow.com they try to go to
www.blog.stackoverflow.com because they think all URLs start with "www." and get confused when it doesn't work.
Is there a technical reason for the "www" or was it just invented for semantical reasons?
Is there anything being done to address this or is it considered a non issue?
example.com, for serving web content, and set cookies on this domain instead of on
www.example.com, then you've forced all sub-domains, e.g.
blog.example.com, to be include these cookies. This becomes an issue if you want to serve static content from a separate server/sub-domain like
static.example.com. In this case you would need to secure a second domain for hosting only static content.