do you ...

[ronkin]

Do you use www. or not with your domain?

[girdhar]

Hi,Ronkin
I didn't get you what exactly you are looking for?
I do use www.with my domen.

[kaliostro]

I don't think it's necessary to put www. before youyr domain. Redirect 301 may be helpful in it.

[milkie]

Your host should put it somewhere in your DNS settings, mine helped me.