Hi,

This should redirect both www to non-www and http to https:

RewriteEngine On

# https/http www -> https non-www
RewriteBase /
RewriteCond %{HTTP_HOST} ^www\.(.*)$ [NC]
RewriteRule ^(.*)$ https://%1/$1 [R=301,L]

# http non-www -> https non-www
RewriteCond %{HTTPS} !=on
RewriteRule ^/?(.*) https://%{SERVER_NAME}/$1 [R,L]

I have seen that if a user types https:// example.com and I want it to redirect to https:// www.example.com/ then browser give warning about its security before redirecting. Hence, asks for users confirmation. This is bad thing and can destroy site owner image. This should not happen. :D

I haven't seen your SSL certificate, but I'm assuming that it's valid for example.com only and not www.example.com. Unfortunately, unless you get an SSL certificate that is valid for both www and non-www, visitors will continue to see a warning before redirecting.

Here is the working code for the .htaccess

RewriteEngine On

RewriteBase /
RewriteCond %{HTTP_HOST} ^www\.(.*)$ [NC]
RewriteRule ^(.*)$ https://%1/$1 [R=301,L]

RewriteCond %{HTTPS} !=on
RewriteRule ^/?(.*) https://%{SERVER_NAME}/$1 [R,L]

I would also recommend checking out this tutorial on DO community if you need to reference anything regarding .htaccess :)

https://www.digitalocean.com/community/tutorials/how-to-use-the-htaccess-file

Thanks everyone for the quick response. I can now successfully redirect my website to HTTPS. Thanks, bye.

Here is working code..

RewriteEngine On
RewriteBase /

301 Redirect of http://primesoft.in OR https://primesoft.in to https://www.primesoft.in
RewriteCond %{HTTP_HOST} ^primesoft\.in [NC]
RewriteRule ^(.*)$ https://www.%{SERVER_NAME}/$1 [R=301,L]

301 Redirect of http://primesoft.in to https://www.primesoft.in
RewriteCond %{HTTPS} !=on
RewriteRule ^/?(.*) https://www.%{SERVER_NAME}/$1 [R=301,L]