Msg#: 3758374 posted 5:59 pm on Oct 30, 2008 (gmt 0)
To clarify, if you request your domain as example.com, does your server redirect the browser to www.example.com or not?
If not, you have left it up to the search engines to list the www- or non-www domain as they choose, or worse -- to split your PageRank or Link Popularity across both domains, thus lowering your ranking in either.
There are many threads here on redirecting non-canonical URLs to canonical URLs. The best title so far is "Duplicate content -- Get it right or perish," which about sums it up...