I've seen some good threads developed on this topic in the Q&A archives, but feel this topic deserves a fresh perspective as many of the discussion were almost 4 years old.
My webmaster tools preferred domain setting is currently non www. I didn't set the preferred domain this way, it was like this when I first started using WM tools.
However, I have built the majority of my links with the www, which I've always viewed as part of the web address.
When I put my site into an SEO Moz campaign it recognized the www version as a subdomain which I thought was strange, but now I realize it's due to the www vs. non www preferred domain distinction.
A look at site:mysite.com shows that Google is indexing both the www and non www version of the site. My site appears healthy in terms of traffic, but my sense is that a few technical SEO items are holding me back from a breakthrough.
QUESTION to the SEOmoz community:
What the hell should I do? Change the preferred domain settings? 301 redirect from non www domain to the www domain?
Google suggests this: "Once you've set your preferred domain, you may want to use a 301 redirect to redirect traffic from your non-preferred domain, so that other search engines and visitors know which version you prefer."
Any insight would be greatly appreciated.
