WordPress : Cache sans plugin

Éditer .htaccess

# Mise en cache des fichiers dans le navigateur
<IfModule mod_expires.c>
ExpiresActive On
ExpiresDefault "access plus 1 month"

ExpiresByType text/html "access plus 0 seconds"
ExpiresByType text/xml "access plus 0 seconds"
ExpiresByType application/xml "access plus 0 seconds"
ExpiresByType application/json "access plus 0 seconds"
ExpiresByType application/pdf "access plus 0 seconds"

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

ExpiresByType application/x-font-ttf "access plus 1 month"
ExpiresByType font/opentype "access plus 1 month"
ExpiresByType application/x-font-woff "access plus 1 month"
ExpiresByType application/x-font-woff2 "access plus 1 month"
ExpiresByType image/svg+xml "access plus 1 month"
ExpiresByType application/vnd.ms-fontobject "access plus 1 month"

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

ExpiresByType text/css "access plus 6 month"
ExpiresByType application/javascript "access plus 6 month"

ExpiresByType application/x-shockwave-flash "access plus 1 week"
ExpiresByType image/x-icon "access plus 1 week"

</IfModule>

# En-têtes
Header unset ETag
FileETag None

<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>

Compression gzip

# Compressions des fichiers statiques
<IfModule mod_deflate.c> 
    AddOutputFilterByType DEFLATE text/xhtml text/html text/plain text/xml text/javascript application/x-javascript text/css 
    BrowserMatch ^Mozilla/4 gzip-only-text/html 
    BrowserMatch ^Mozilla/4\.0[678] no-gzip 
    BrowserMatch \bMSIE !no-gzip !gzip-only-text/html 
    SetEnvIfNoCase Request_URI \.(?:gif|jpe?g|png)$ no-gzip dont-vary 
    Header append Vary User-Agent env=!dont-vary 
</IfModule>  

AddOutputFilterByType DEFLATE text/html  
AddOutputFilterByType DEFLATE text/plain  
AddOutputFilterByType DEFLATE text/xml  
AddOutputFilterByType DEFLATE text/css  
AddOutputFilterByType DEFLATE text/javascript
AddOutputFilterByType DEFLATE font/opentype
AddOutputFilterByType DEFLATE application/rss+xml
AddOutputFilterByType DEFLATE application/javascript
AddOutputFilterByType DEFLATE application/json 

désactiver script java

# Bloquer l'utilisation de certains scripts
RewriteEngine On
RewriteBase /
RewriteRule ^wp-admin/includes/ - [F,L]
RewriteRule !^wp-includes/ - [S=3]
RewriteRule ^wp-includes/[^/]+\.php$ - [F,L]
RewriteRule ^wp-includes/js/tinymce/langs/.+\.php - [F,L]
RewriteRule ^wp-includes/theme-compat/ - [F,L]