Browser-Caching 

<IfModule mod_expires.c>
    ExpiresActive on
    ExpiresDefault                                      "access plus 1 month"

  # CSS
    ExpiresByType text/css                              "access plus 1 year"

  # Data interchange
    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"

  # Favicon (cannot be renamed!) and cursor images
    ExpiresByType image/vnd.microsoft.icon              "access plus 1 week"
    ExpiresByType image/x-icon                          "access plus 1 week"

  # HTML - Behält die Website eine Stunde im Cache, neues wird erst nach Ablauf einer Stunde
  # angezeigt. Wenn nicht gewuenscht, bei 3600 eine Null eintragen
    ExpiresByType text/html                             "access plus 3600 seconds"

  # JavaScript
    ExpiresByType application/javascript                "access plus 1 year"
    ExpiresByType application/x-javascript              "access plus 1 year"
    ExpiresByType text/javascript                       "access plus 1 year"

  # Manifest files
    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"

  # Media files
    ExpiresByType audio/ogg                             "access plus 1 month"
    ExpiresByType image/bmp                             "access plus 1 month"
    ExpiresByType image/gif                             "access plus 1 month"
    ExpiresByType image/jpeg                            "access plus 1 month"
    ExpiresByType image/png                             "access plus 1 month"
    ExpiresByType image/svg+xml                         "access plus 1 month"
    ExpiresByType image/webp                            "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"

  # Web fonts

    # Embedded OpenType (EOT)
    ExpiresByType application/vnd.ms-fontobject         "access plus 1 month"
    ExpiresByType font/eot                              "access plus 1 month"

    # OpenType
    ExpiresByType font/opentype                         "access plus 1 month"

    # TrueType
    ExpiresByType application/x-font-ttf                "access plus 1 month"

    # Web Open Font Format (WOFF) 1.0
    ExpiresByType application/font-woff                 "access plus 1 month"
    ExpiresByType application/x-font-woff               "access plus 1 month"
    ExpiresByType font/woff                             "access plus 1 month"

    # Web Open Font Format (WOFF) 2.0
    ExpiresByType application/font-woff2                "access plus 1 month"

  # Other
    ExpiresByType text/x-cross-domain-policy            "access plus 1 week"
</IfModule>

In der Praxis:

<IfModule mod_expires.c>
    ExpiresActive on
    ExpiresDefault                                      "access plus 1 month"

    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"

  # Favicon (cannot be renamed!) and cursor images
    ExpiresByType image/vnd.microsoft.icon              "access plus 1 week"
    ExpiresByType image/x-icon                          "access plus 1 week"

  # Media files
    ExpiresByType image/bmp                             "access plus 1 month"
    ExpiresByType image/gif                             "access plus 1 month"
    ExpiresByType image/jpeg                            "access plus 1 month"
    ExpiresByType image/png                             "access plus 1 month"
    ExpiresByType image/svg+xml                         "access plus 1 month"
    ExpiresByType image/webp                            "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"

  # Web fonts

    # Embedded OpenType (EOT)
    ExpiresByType application/vnd.ms-fontobject         "access plus 3 month"
    ExpiresByType font/eot                              "access plus 3 month"

    # OpenType
    ExpiresByType font/opentype                         "access plus 3 month"

    # TrueType
    ExpiresByType application/x-font-ttf                "access plus 3 month"

    # Web Open Font Format (WOFF) 1.0
    ExpiresByType application/font-woff                 "access plus 3 month"
    ExpiresByType application/x-font-woff               "access plus 3 month"
    ExpiresByType font/woff                             "access plus 3 month"

    # Web Open Font Format (WOFF) 2.0
    ExpiresByType application/font-woff2                "access plus 3 month"

</IfModule>

Wp-Optimize

# BEGIN WP-Optimize Gzip compression
<IfModule mod_filter.c>
	<IfModule mod_deflate.c>
# Compress HTML, CSS, JavaScript, Text, XML and fonts
		AddType application/vnd.ms-fontobject .eot
		AddType font/ttf .ttf
		AddType font/otf .otf
		AddType font/x-woff .woff
		AddType image/svg+xml .svg
		
		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-font-woff
		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 font/woff
		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
		<IfModule mod_headers.c>
			Header append Vary User-Agent
		</IfModule>
	</IfModule>
</IfModule>
# END WP-Optimize Gzip compression

# BEGIN WP-Optimize Browser Cache
<IfModule mod_expires.c>
	ExpiresActive On
	ExpiresByType text/css "access 1 year"
	ExpiresByType text/html "access 1 year"
	ExpiresByType image/gif "access 1 year"
	ExpiresByType image/png "access 1 year"
	ExpiresByType image/jpg "access 1 year"
	ExpiresByType image/jpeg "access 1 year"
	ExpiresByType image/webp "access 1 year"
	ExpiresByType image/x-icon "access 1 year"
	ExpiresByType application/pdf "access 1 year"
	ExpiresByType application/javascript "access 1 year"
	ExpiresByType text/x-javascript "access 1 year"
	ExpiresByType application/x-shockwave-flash "access 1 year"
	ExpiresDefault "access 1 year"
</IfModule>

<IfModule mod_headers.c>
	<filesMatch "\.(ico|jpe?g|png|gif|webp|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>

#Disable ETag
FileETag None
# END WP-Optimize Browser Cache