In this case, We have the great option in .htaccess to decide with or without WWW .
Here is the solutions for htaccess redirect with or without www
Examples with mentioning Domain Name
Redirect WWW to non-WWW or without WWW Domain Name:
Options +FollowSymLinks
RewriteEngine On
RewriteCond %{HTTP_HOST} ^www\.example\.com [NC]
RewriteRule ^(.*)$ http://example.com/$1 [L,R=301]
Redirect non-WWW to with WWW Domain Name:
Options +FollowSymLinks
RewriteEngine On
RewriteCond %{HTTP_HOST} ^example.com [NC]
Rewriterule ^(.*)$ http://www.example.com/$1 [R=301,NC]
Example with Suitable for any Website without mentioning the domain name:
(Suitable for any Website) no need to tell the domain name on code.
Redirect www to non-www (both: http + https)
if we need to do this for separate http and https:
Options +FollowSymLinks
RewriteEngine On
# if without https
RewriteCond %{HTTPS} off
RewriteCond %{HTTP_HOST} ^www\.(.*)$ [NC]
RewriteRule ^(.*)$ http://%1/$1 [R=301,L]
# if https
RewriteCond %{HTTPS} on
RewriteCond %{HTTP_HOST} ^www\.(.*)$ [NC]
RewriteRule ^(.*)$ https://%1/$1 [R=301,L]
Redirect non-www to www (both: http + https)
if we need to do this for separate http and https:
Options +FollowSymLinks
RewriteEngine On
# if without https
RewriteCond %{HTTPS} off
RewriteCond %{HTTP_HOST} !^www\.(.*)$ [NC]
RewriteRule ^(.*)$ http://www.%{HTTP_HOST}/$1 [R=301,L]
# if https
RewriteCond %{HTTPS} on
RewriteCond %{HTTP_HOST} !^www\.(.*)$ [NC]
RewriteRule ^(.*)$ https://www.%{HTTP_HOST}/$1 [R=301,L]
