A URL of a website can be written with or without "www," like this:
* http://www.test.com, OR
* http://test.com
However for general visitor the URLs with and without "www" does not make any problem but Some search engines see the above two URLs as two different URLs and may provide a different PageRank and if without fixing you use both, you're diluting the PR for each URL.
It is advisable to choose one out of above versions for SEO purpose to get good PR and link juice.
How to redirect from one to the other using .htaccess
Make changes in your .htaccess file and replace "test.com" with your domain.
To redirect to the URL with www
RewriteEngine On
rewriteCond %{HTTP_HOST} ^test.com [NC]
rewriteRule ^(.*)$ http://www.test.com/$1 [R=301,L]
* http://www.test.com, OR
* http://test.com
However for general visitor the URLs with and without "www" does not make any problem but Some search engines see the above two URLs as two different URLs and may provide a different PageRank and if without fixing you use both, you're diluting the PR for each URL.
It is advisable to choose one out of above versions for SEO purpose to get good PR and link juice.
How to redirect from one to the other using .htaccess
Make changes in your .htaccess file and replace "test.com" with your domain.
To redirect to the URL with www
RewriteEngine On
rewriteCond %{HTTP_HOST} ^test.com [NC]
rewriteRule ^(.*)$ http://www.test.com/$1 [R=301,L]