A short tutorial that explains you on how to install W3 Total Cache Plugin.
W3 Total cache is the fastest WordPress performance optimization plugin. It improves the site performance and load at a faster speed. The caching in every aspect of your site, reduces the download times. Refer the below tutorial that explains you clearly how to install W3 Total Cache Plugin in Plesk with screenshots.
Step 1: Go to Wordpress login
Step 2: Go to Plugins → Add New
Step 3: Search wp total cache and install
Step 4: Go to Installed Plugins and select the check box of W3 Total Cache and click on Activate button.