General .htaccess file for gzip/deflate compression and redirecting both of www and ssl(https). Needed modules in httpd.conf: deflate_module(modules/mod_deflate.so), (expires_module modules/mod_expires.so), (headers_module modules/mod_headers.so), (rewrite_module modules/mod_rewrite.so)

.htaccess

## KEEP-ALIVE ##
<IfModule mod_headers.c>
  Header set Connection keep-alive
</IfModule>
## KEEP-ALIVE ##

## EXPIRES CACHING ##
<IfModule mod_expires.c>
  ExpiresActive On
  ExpiresByType image/jpg "access plus 1 month"
  ExpiresByType image/jpeg "access plus 1 month"
  ExpiresByType image/gif "access plus 1 month"
  ExpiresByType image/png "access plus 1 month"
  ExpiresByType text/css "access plus 1 month"
  ExpiresByType application/pdf "access plus 1 month"
  ExpiresByType text/x-javascript "access plus 1 month"
  ExpiresByType application/x-shockwave-flash "access plus 1 month"
  ExpiresByType image/x-icon "access plus 1 year"
  ExpiresDefault "access plus 3 days"
</IfModule>
## EXPIRES CACHING ##

## GZIP COMPRESSION ##
<IfModule mod_deflate.c>
  # Compress HTML, CSS, JavaScript, Text, XML and fonts
  AddOutputFilterByType DEFLATE application/javascript
  AddOutputFilterByType DEFLATE application/rss+xml
  AddOutputFilterByType DEFLATE application/vnd.ms-fontobject
  AddOutputFilterByType DEFLATE application/x-font
  AddOutputFilterByType DEFLATE application/x-font-opentype
  AddOutputFilterByType DEFLATE application/x-font-otf
  AddOutputFilterByType DEFLATE application/x-font-truetype
  AddOutputFilterByType DEFLATE application/x-font-ttf
  AddOutputFilterByType DEFLATE application/x-javascript
  AddOutputFilterByType DEFLATE application/xhtml+xml
  AddOutputFilterByType DEFLATE application/xml
  AddOutputFilterByType DEFLATE font/opentype
  AddOutputFilterByType DEFLATE font/otf
  AddOutputFilterByType DEFLATE font/ttf
  AddOutputFilterByType DEFLATE image/svg+xml
  AddOutputFilterByType DEFLATE image/x-icon
  AddOutputFilterByType DEFLATE text/css
  AddOutputFilterByType DEFLATE text/html
  AddOutputFilterByType DEFLATE text/javascript
  AddOutputFilterByType DEFLATE text/plain
  AddOutputFilterByType DEFLATE text/xml

  # Remove browser bugs (only needed for really old browsers)
  BrowserMatch ^Mozilla/4 gzip-only-text/html
  BrowserMatch ^Mozilla/4\.0[678] no-gzip
  BrowserMatch \bMSIE !no-gzip !gzip-only-text/html
  Header append Vary User-Agent
</IfModule>
## GZIP COMPRESSION ##

## SSL & WWW REDIRECTION ##
<IfModule mod_rewrite.c>
  RewriteEngine on
  RewriteCond %{HTTPS} off [OR]
  RewriteCond %{HTTP_HOST} !^www\.yoursitedomain\.com$ [NC]
  RewriteRule ^(.*)$ https://www.yoursitedomain.com/$1 [L,R=301]
</IfModule>
## SSL & WWW REDIRECTION ##

## DEFAULT REWRITE RULE ##
<IfModule mod_rewrite.c>
  RewriteEngine on
  RewriteCond $1 !^(index\\.php|resources|robots\\.txt)
  RewriteCond %{REQUEST_FILENAME} !-f
  RewriteCond %{REQUEST_FILENAME} !-d
  RewriteRule ^(.*)$ index.php?/$1 [L,QSA]
</IfModule>
## DEFAULT REWRITE RULE ##