netmeg - 8:06 pm on Apr 6, 2013 (gmt 0)
Seriously, anyone who has DNS control over a domain name - they're going to make two different sites - one www, one non-subdomain (non www) - two different sites? Technically they can do that, but it would be a marketing disaster. Who is going to say "www.foo.com" is our site that sells A, foo.com sells B". Nobody does that.
I've had two clients who did that for dev purposes. Wasn't my choice, but it was already done when I got there. In each case the dev site was walled off from Google.
And if Google *did* treat them the same, then they'd get just as much flack for breaking the standard.
(Bing also treats them separately if one is not redirected to the other)
I don't think it's quite THAT simple. I've never actually submitted non-www version, it always appeared by itself.
Well presumably you use one or the other when you refer to the site or promote it - that's probably the one you want to submit.
If one redirects to the other, I suspect that a penalty applied to one applies to the other, and that goes for lifting as well.