OStatic

By Leon Merchi on Jul. 22, 2009

It really does not matter, and you can always have one form redirect to the other (httpd.conf rewrite rule if using Apache). This is a matter of taste.

"www" was used to denote the "world wide web" as the machine name for that web server.

By Sunny Gabriel on Jul. 22, 2009

Brenda, @Leon is right. But you MUST make sure you use only one and not both because Google will treat these as separate 'sites', and you will lose SEO credit due to duplicated content, etc. etc. etc. You should issue a 301 redirect directive (moved permanently) so that all traffic to one (say, http://DomainName.com) is redirected to http://www.DomainName.com).

By Katie Proft on Jul. 22, 2009

You can also set your preference in Google Webmasters. There you can tell Google which domain to list when showing search results. I would still issue the necessary http header redirects.

By Mislav Bajic on Jul. 31, 2009

I suggest using www, because many people will write your domain that way, on forums people write www. nobody writes without www.