How Add or Remove the WWW Prefix from Your Domain Name

How do you automatically add the “www” prefix to your domain name? Or perhaps you want to remove the “www” prefix from a URL. Doing either of these may save your site from duplicate subject matter issues in the search engines whether your site is often referred to by both forms (that is, example.com AND www.example.com). This article shows you how you can fix that by simply adding a few lines to your .htaccess file.

Original post by Nameclerk