No www. in my url listing on Yahoo results

Where did the www. go? and did this cause my drop?

[howiejs]

For my home page - the URL result is now
domain.com

it used to be www.domain.com

Lost some really strong rankings from my home page - is this the issue?

[GerBot]

Yes this has hurt your rankings

modify your htaccess file to automatically push [domain.com...] to [domain.com....]

wait about 5 days

you rankings will return.

p.s I'm not the htaccess guru here so someone else could probably help you out.

[chokan]

A site of mine also drop "www" in several query term.
Why does it like that?
Fortunately, the ranking still be well.
What wrong with Yahoo?กก