Are there any differences among these addresses?
www.example.com
http://www.example.com
example.com
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Sign up to join this communityhttp://www.example.com
and www.example.com
would refer to the same thing. Modern browsers assume that the protocol is http://
. Some browsers are even starting to hide the implicit http://
when showing URLs in the URL bar.
www.example.com
and example.com
can be very different. It is possible to run two different sites at those addresses with completely different content. That wouldn't be good for users and most websites take one of three approaches to making those addresses work as expected:
example.com
to www.example.com
www.example.com
to example.com
example.com
and www.example.com
www.example.com
or example.com
).
– Zistoloen
Mar 8 '14 at 16:33
example.com
) then there is no way to set up sub-domains without cookies. With www
it is possible to set up a sub-domain(s) that does not have cookies for the serving of static assets. Cookies require data transfer and therefore slow load times; fast load times positively impact SEO and user experience...that said, I have never done this myself and the difference in performance and SEO is often almost negligible.
– adam-asdf
Mar 10 '14 at 4:09