Redirect to non www and https via htaccess

Google and may be other search engines consider www.example.com and example.com as seperate domains. As a result we need to stick with a single version. Note that, there is no seo related advantages to select one or another.

We may also want to redirect users from http to https because of security measures.

Sticking with non www version

You don't want www infront of domain name and serve via https. Let's do it by editing .htaccess file.

RewriteEngine On
RewriteCond %{HTTPS} off [OR]
RewriteCond %{HTTP_HOST} ^www\. [NC]
RewriteCond %{HTTP_HOST} ^(?:www\.)?(.+)$ [NC]
RewriteRule ^ https://%1%{REQUEST_URI} [L,NE,R=301]

Sticking with www version

May be you like to add www and serve via https. Here's the script

RewriteEngine On
RewriteCond %{HTTPS} off [OR]
RewriteCond %{HTTP_HOST} !^www\. [NC]
RewriteCond %{HTTP_HOST} ^(?:www\.)?(.+)$ [NC]
RewriteRule ^ https://www.%1%{REQUEST_URI} [L,NE,R=301]