Leverage Browser Caching - Apache - Add this to .htaccess file

.htaccess

# Thank you to this gist for some edits (check history! lol) https://gist.github.com/Zodiac1978/3145830
# Leverage Browser Caching

# Fonts
# Add correct content-type for fonts
AddType application/vnd.ms-fontobject .eot 
AddType application/x-font-ttf .ttf
AddType application/x-font-opentype .otf
AddType application/x-font-woff .woff
AddType image/svg+xml .svg

# Compress compressible fonts
# only uncomment if you dont have compression turned on already. Otherwise it will cause all other filestypes not to get compressed
# AddOutputFilterByType DEFLATE application/x-font-ttf application/x-font-opentype image/svg+xml

# Expires Caching
<IfModule mod_expires.c>
    ExpiresActive On
    ExpiresDefault "access plus 1 week"

    ExpiresByType text/css "access plus 1 month"

    ExpiresByType application/atom+xml "access plus 1 hour" 
    ExpiresByType application/rdf+xml "access plus 1 hour"
    ExpiresByType application/rss+xml "access plus 1 hour" 

    ExpiresByType application/json "access plus 0 seconds"
    ExpiresByType application/ld+json "access plus 0 seconds"
    ExpiresByType application/schema+json "access plus 0 seconds"
    ExpiresByType application/vnd.geo+json "access plus 0 seconds"
    ExpiresByType application/xml "access plus 0 seconds"
    ExpiresByType text/xml "access plus 0 seconds" 

    ExpiresByType image/x-icon "access plus 1 month"
    ExpiresByType image/vnd.microsoft.icon "access plus 1 month"

    ExpiresByType text/html "access plus 1 minute"

    ExpiresByType text/javascript "access plus 1 month"
    ExpiresByType text/x-javascript "access plus 1 month"
    ExpiresByType application/javascript "access plus 1 months"
    ExpiresByType application/x-javascript "access plus 1 months"

    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 image/svg+xml "access plus 1 month" 
    ExpiresByType image/bmp "access plus 1 month"
    ExpiresByType image/webp "access plus 1 month"

    ExpiresByType audio/ogg "access plus 1 month" 

    ExpiresByType video/mp4 "access plus 1 month" 
    ExpiresByType video/ogg "access plus 1 month" 
    ExpiresByType video/webm "access plus 1 month" 

    ExpiresByType text/plain "access plus 1 month"
    ExpiresByType text/x-component "access plus 1 month" 

    ExpiresByType application/manifest+json "access plus 1 week"
    ExpiresByType application/x-web-app-manifest+json "access plus 0 seconds"
    ExpiresByType text/cache-manifest "access plus 0 seconds"

    ExpiresByType application/pdf "access plus 1 month"

    ExpiresByType application/x-shockwave-flash "access plus 1 month"

    ExpiresByType application/vnd.ms-fontobject "access plus 1 month"
    ExpiresByType font/eot "access plus 1 month"
    ExpiresByType font/opentype "access plus 1 month" 
    ExpiresByType application/x-font-ttf "access plus 1 month" 
    ExpiresByType application/font-woff "access plus 1 month" 
    ExpiresByType application/font-woff2 "access plus 1 month"
    ExpiresByType application/x-font-woff "access plus 1 month"
    ExpiresByType font/woff "access plus 1 month"
  
</IfModule>
## Expires Caching ## 

#Alternative caching using Apache's "mod_headers", if it's installed.
#Caching of common files - ENABLED
<IfModule mod_headers.c>
    # 1 Month
    <FilesMatch "\.(ico|pdf|flv|jpg|jpeg|png|gif|js|css|swf)$">
    Header set Cache-Control "max-age=2592000, public"
    </FilesMatch>

    # 2 DAYS
    <FilesMatch "\.(xml|txt)$">
    Header set Cache-Control "max-age=172800, public, must-revalidate"
    </FilesMatch>

    # 2 HOURS
    <FilesMatch "\.(html|htm)$">
    Header set Cache-Control "max-age=7200, must-revalidate"
    </FilesMatch>
</IfModule>

<IfModule mod_headers.c>
  <FilesMatch "\.(js|css|xml|gz|html|ttf)$">
    Header append Vary: Accept-Encoding
  </FilesMatch>
</IfModule>