Enable HTTP compression & Leverage browser caching on a Plesk ( Linux ) server.

Posted: 0p in Apache, Plesk

Enabling http compression

On a Plesk server, the mod_deflate module is installed by default, however it may be disabled in the Apache configuration file. To enable the mod_deflate module in Plesk edit the Apache configuration file

# vi /etc/httpd/conf/httpd.conf
Search the line that says,

#LoadModule deflate_module modules/mod_deflate.so
and uncomment it i.e. remove the ‘#’ mark

LoadModule deflate_module modules/mod_deflate.so
Now, create a /etc/httpd/conf.d/deflate.conf file. Apache reads all the .conf files from the /etc/httpd/conf.d directory on a Plesk server.

# vi /etc/httpd/conf.d/deflate.conf

and place the following code in it


SetOutputFilter DEFLATE

DeflateCompressionLevel 9
AddOutputFilterByType DEFLATE text/html
AddOutputFilterByType DEFLATE text/plain
AddOutputFilterByType DEFLATE text/xml
AddOutputFilterByType DEFLATE text/css
AddOutputFilterByType DEFLATE text/javascript
AddOutputFilterByType DEFLATE application/javascript
AddOutputFilterByType DEFLATE application/xhtml+xml
AddOutputFilterByType DEFLATE application/xml
AddOutputFilterByType DEFLATE application/rss+xml
AddOutputFilterByType DEFLATE application/atom_xml
AddOutputFilterByType DEFLATE application/x-javascript
AddOutputFilterByType DEFLATE application/x-httpd-php
AddOutputFilterByType DEFLATE application/x-httpd-fastphp
AddOutputFilterByType DEFLATE application/x-httpd-eruby
AddOutputFilterByType DEFLATE image/svg+xml

To enable Enable Leverage browser caching

create a /etc/httpd/conf.d/expires.conf file, paste the below code and save it.


ExpiresActive On
ExpiresByType image/jpg “access plus 1 year”
ExpiresByType image/jpeg “access plus 1 year”
ExpiresByType image/gif “access plus 1 year”
ExpiresByType image/png “access plus 1 year”
ExpiresByType text/css “access plus 1 month”
ExpiresByType application/pdf “access plus 1 month”
ExpiresByType text/x-javascript “access plus 1 month”
ExpiresByType text/javascript “access plus 1 month”
ExpiresByType application/x-shockwave-flash “access plus 1 month”
ExpiresByType image/x-icon “access plus 1 year”
ExpiresDefault “access plus 2 days”

Now restart Apache service for the settings to get applied.
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Comments
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  2. Greetings! Very useful advice in this particular article!
    It’s the little changes which will make the most important changes.
    Thanks for sharing!

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