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How to enable gzip compression?

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On the Plesk interface, if the web site is served by nginx, you can configure the compression of js and css files in Apache & nginx Settings.

In the affected menu item, you need to insert the following code snippet for Additional nginx directives:

gzip on;
gzip_disable "MSIE [1-6]\.(?!.*SV1)";
gzip_proxied any;
gzip_comp_level 5;
gzip_types text/plain text/css application/javascript application/x-javascript text/xml application/xml application/rss+xml text/javascript image/x-icon image/bmp image/svg+xml;
gzip_vary on;

For Apache, you need to start File Manager, then open it in the document-root directory for the domain name or create the .htaccess file.

You must insert the following content into the file:

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-javascript 
AddOutputFilterByType DEFLATE application/xhtml+xml 
AddOutputFilterByType DEFLATE application/xml 
AddOutputFilterByType DEFLATE font/opentype 
AddOutputFilterByType DEFLATE font/otf 
AddOutputFilterByType DEFLATE font/ttf 
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 

BrowserMatch ^Mozilla/4 gzip-only-text/html 
BrowserMatch ^Mozilla/4\.0[678] no-gzip 
BrowserMatch \bMSIE !no-gzip !gzip-only-text/html 
Header append Vary User-Agent
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