link to webpage hat 301 redirect code example
Example: how to create a 301 redirect with domain.com
RewriteEngine On
RewriteCond %{HTTP_HOST} ^DOMAIN.com [NC]
RewriteCond %{SERVER_PORT} 80
RewriteRule ^(.*)$ https://www.DOMAIN.com/$1 [R=301,L]
RewriteEngine On
RewriteCond %{HTTP_HOST} ^DOMAIN.com [NC]
RewriteCond %{SERVER_PORT} 80
RewriteRule ^(.*)$ https://www.DOMAIN.com/$1 [R=301,L]