Why do you see results as https:// instead of www. like most others?

I'm curious. On occasion, I'll see a site that is listed as https://domain.com instead of how I see most other sites (www.domain.com).
Does it matter? Good? Bad? What's the scoop?
Thanks,
Pete
Why do you see results as https:// instead of www. like most others?

See original post by OldPete