Optimizing Apache2

apache conf

### file to edit \usr\local\apache\conf.d\empty.conf
### Caching, compress and some security added thanks to https://www.gebruikers.eu
# Load mod_deflate.so only if it is not previously enabled, check httpd.conf for this.
# In my case it wasn't enabled. I prefer this empty.conf to load mod_deflate so my config survives updates and rebuilds.
LoadModule deflate_module modules/mod_deflate.so

<Location />
# Insert filter
SetOutputFilter DEFLATE

# Netscape 4.x has some problems...
BrowserMatch ^Mozilla/4 gzip-only-text/html

# Netscape 4.06-4.08 have some more problems
BrowserMatch ^Mozilla/4\.0[678] no-gzip

# MSIE masquerades as Netscape, but it is fine
BrowserMatch \bMSIE !no-gzip !gzip-only-text/html

# Don't compress images and other uncompressible content
SetEnvIfNoCase Request_URI \
 \.(?:gif|jpe?g|png|rar|zip|exe|flv|swf|mov|wma|mp3|mp4|avi|mp?g)$ no-gzip dont-vary

# Make sure proxies don't deliver the wrong content
Header append Vary User-Agent env=!dont-vary
</Location>

# BEGIN Compress text files
<ifModule mod_deflate.c>
    AddOutputFilterByType DEFLATE text/html text/xml text/css text/plain
    AddOutputFilterByType DEFLATE image/svg+xml application/xhtml+xml application/xml
    AddOutputFilterByType DEFLATE application/rdf+xml application/rss+xml application/atom+xml
    AddOutputFilterByType DEFLATE text/javascript application/javascript application/x-javascript application/json
    AddOutputFilterByType DEFLATE application/x-font-ttf application/x-font-otf
    AddOutputFilterByType DEFLATE font/truetype font/opentype
</ifModule>
# END Compress text files and caching

# BEGIN Expire headers https://samaxes.com/2011/05/improving-web-performance-with-apache-and-htaccess/
<ifModule mod_expires.c>
    ExpiresActive On
    ExpiresDefault "access plus 5 seconds"
    ExpiresByType text/html "access plus 1 second"
    ExpiresByType text/css "access plus 1 week"
    ExpiresByType text/javascript "access plus 1 week"
    ExpiresByType application/javascript "access plus 1 week"
    ExpiresByType application/pdf "access plus 1 month"
    ExpiresByType application/x-javascript "access plus 1 week"
    ExpiresByType application/x-shockwave-flash "access plus 1 month"
    ExpiresByType application/xhtml+xml "access plus 1 second"
    ExpiresByType image/gif "access plus 1 month"
    ExpiresByType image/jpeg "access plus 1 month"
    ExpiresByType image/png "access plus 1 month"
    ExpiresByType image/x-icon "access plus 1 month"
</ifModule>
# END Expire headers

# BEGIN Cache-Control Headers
<ifModule mod_headers.c>
    <filesMatch "\.(ico|jpe?g|png|gif|swf)$">
        Header set Cache-Control "public"
    </filesMatch>
    <filesMatch "\.(css)$">
        Header set Cache-Control "public"
    </filesMatch>
    <filesMatch "\.(js)$">
        Header set Cache-Control "private"
    </filesMatch>
    <filesMatch "\.(x?html?|php)$">
        Header set Cache-Control "private, must-revalidate"
    </filesMatch>
    </ifModule>
# END Cache-Control Headers

# BEGIN Turn ETags Off
    FileETag None
# END Turn ETags Off

# Protection against malicious code in files imposing as images
#ForceType application/octet-stream
<FilesMatch "(?i).jpe?g$">
    ForceType image/jpeg
</FilesMatch>
<FilesMatch "(?i).gif$">
    ForceType image/gif
</FilesMatch>
<FilesMatch "(?i).png$">
    ForceType image/png
</FilesMatch>