How would I know that my site has been crawled?

I submitted a sitemap about two months ago. The site is verified. I
can't see any cue that the site has ben crawled, other than my sitemap
was last downloaded yesterday. I see no stats but that might be because
there is not much traffic yet.

I've discovered, after reading another post, that my site responds to
both http://wealthydifference.com and http://www.wealthydifference.com.
It appears that this could be a problem. If so, I'll have to talk to my
hosting service to see how they can fix this.

But first things first... How would I know that the site has been
crawled?

Éric