For quite some time, my site has been ranked #1 in the yahoo search results. I checked it recently and it has dropped to the 2nd or 3rd page.

What's strange is that Yahoo shows the URL in the search results as just domain.com, rather than www.domain.com. I'm pretty certain that it used to show up as www.domain.com.

Could this be affecting my ranking? Any idea why this would happen in Yahoo?

Nothing has changed in Google and I'm still #1 there.

I appreciate your help.

- Rob