In terms of web hosting the speed of a website is extremely important, because it can highly effects the positioning of web pages on search engines.
To activate mod_pagespeed on your website, type the following rule in your .htaccess file:
To deactivate the module, type, instead, the following rule:
In addition to the activation and deactivation operations, you can enable or disable other filters by typing other htaccess rules.
To learn more, we suggest you to visit the dedicated official page.