.htaccess for WordPress Speed Optimization

.htaccess

# Directory access disable
<IfModule mod_autoindex.c>
Options -Indexes
</IfModule>

# Custom HTTP headers for specific file types.
<IfModule mod_alias.c>
<FilesMatch "\.(html|htm|rtf|rtx|txt|xsd|xsl|xml)$">
<IfModule mod_headers.c>
Header set X-Powered-By "WordPress/Adev"
Header unset Pragma
Header append Cache-Control "public"
Header unset Last-Modified
</IfModule>
</FilesMatch>


<FilesMatch "\.(css|htc|js|asf|asx|wax|wmv|wmx|avi|bmp|class|divx|doc|docx|eot|exe|gif|gz|gzip|ico|jpg|jpeg|jpe|json|mdb|mid|midi|mov|qt|mp3|m4a|mp4|m4v|mpeg|mpg|mpe|mpp|otf|odb|odc|odf|odg|odp|ods|odt|ogg|pdf|png|pot|pps|ppt|pptx|ra|ram|svg|svgz|swf|tar|tif|tiff|ttf|ttc|wav|wma|wri|xla|xls|xlsx|xlt|xlw|zip)$">
<IfModule mod_headers.c>
Header unset Pragma
Header append Cache-Control "public"
</IfModule>
</FilesMatch>
</IfModule> 

 
# FileETag None is not enough for every server.
<IfModule mod_headers.c>
Header unset ETag
</IfModule>

# Since we’re sending far-future expires, we don’t need ETags for static content.
# developer.yahoo.com/performance/rules.html#etags
FileETag None


# These configurations ensure that the server correctly identifies and serves AVIF images with the appropriate MIME types.
<IfModule mod_mime.c>
	AddType image/avif                                  avif
    AddType image/avif-sequence                         avifs
</IfModule>


<IfModule mod_expires.c>
	ExpiresActive on
	ExpiresDefault                              "access plus 1 month"
	# cache.appcache needs re-requests in FF 3.6 (thanks Remy ~Introducing HTML5)
	ExpiresByType text/cache-manifest           "access plus 0 seconds"
	# Your document html
	ExpiresByType text/html                     "access plus 0 seconds"
	# Data
	ExpiresByType text/xml                      "access plus 0 seconds"
	ExpiresByType application/xml               "access plus 0 seconds"
	ExpiresByType application/json              "access plus 0 seconds"
	# Feed
	ExpiresByType application/rss+xml           "access plus 1 hour"
	ExpiresByType application/atom+xml          "access plus 1 hour"
	# Favicon (cannot be renamed)
	ExpiresByType image/x-icon                  "access plus 1 week"
	# Media: images, video, audio
	ExpiresByType image/gif                     "access plus 4 months"
	ExpiresByType image/png                     "access plus 4 months"
	ExpiresByType image/jpeg                    "access plus 4 months"
	ExpiresByType image/webp                    "access plus 4 months"
	ExpiresByType video/ogg                     "access plus 4 months"
	ExpiresByType audio/ogg                     "access plus 4 months"
	ExpiresByType video/mp4                     "access plus 4 months"
	ExpiresByType video/webm                    "access plus 4 months"
	ExpiresByType image/avif                    "access plus 4 months"
	ExpiresByType image/avif-sequence           "access plus 4 months"
	# HTC files  (css3pie)
	ExpiresByType text/x-component              "access plus 1 month"
	# Webfonts
	ExpiresByType font/ttf                      "access plus 4 months"
	ExpiresByType font/otf                      "access plus 4 months"
	ExpiresByType font/woff                     "access plus 4 months"
	ExpiresByType font/woff2                    "access plus 4 months"
	ExpiresByType image/svg+xml                 "access plus 1 month"
	ExpiresByType application/vnd.ms-fontobject "access plus 1 month"
	# CSS and JavaScript
	ExpiresByType text/css                      "access plus 1 year"
	ExpiresByType application/javascript        "access plus 1 year"
</IfModule>


# It uses the mod_headers module to set Cache-Control headers based on file extensions
<IfModule mod_headers.c>
  <filesmatch "\.(ico|flv|jpg|jpeg|png|gif|css|swf)$">
  Header set Cache-Control "max-age=2678400, public"
  </filesmatch>
  <filesmatch "\.(html|htm)$">
  Header set Cache-Control "max-age=7200, private, must-revalidate"
  </filesmatch>
  <filesmatch "\.(pdf)$">
  Header set Cache-Control "max-age=86400, public"
  </filesmatch>
  <filesmatch "\.(js)$">
  Header set Cache-Control "max-age=2678400, private"
  </filesmatch>
</IfModule>


# Gzip compression helps to reduce the size of the files sent from the server to the client, improving load times and reducing bandwidth usage.
<IfModule mod_deflate.c>
  AddOutputFilterByType DEFLATE text/html text/plain text/xml text/css text/javascript application/javascript application/json
</IfModule>