I have a client that is indexed under http://domain.com. I think it looks quite nice in the listings like this. However, I can also see that the domain is accessible under www.domain.com, when running some spiders over the site.
I've never really thought of the difference of going to other way, forcing the webserver to redirect all www requests to http://.
Is there any reason why I would not want to do this and force instead www in requests?