In ISPmanager you can configure compression of a website static content which includes files that can be easily modified (images, music, video, etc.). As a rule, such files consume much space and slow down your website. To compress them open the WWW-domain edit form and enable the option Compression and set a Compression level. Learn more under the article Add a WWW-domain. The maximum compression level is 9. The minimum is 1. We recommend setting 5.
The ngx_http_gzip_module module is a filter that compresses a request with gzip, enabling to reduce data size. If the compression is enabled, the following information is added into the Nginx configuration file for the WWW-domain:
gzip on — enable the gzip compression.
gzip_comp_level <compression level> — sets the compression level.
gzip_disable "msie6" — disables the gzip compression for requests with the “User-Agent” heading fields that match specified regular expressions. The special mask “msie6” corresponds to the “MSIE [4-6]\.” regular expression, but it is faster.
Perform the following steps to modify a list of data types:
Add the following variable on every cluster node in the ISPmanager configuration file /usr/local/mgr5/etc/ispmgrnode.conf
Restart the control panel
To apply the changes to the existing WWW-domains go to Domains → WWW-domains → Edit and click Ok.
For more information about ngx_http_gzip_module please refer to the official website.