Access cPanel >> Perl Modules. At the dropdown click on Show System Installed Modules. It will list all the installed modules with a Documentation available.
Access cPanel & go to the URL http://www.yourdomain.com:2082/cpsessxxxxxxx/frontend/x3/perlmodules.html. This URL will also show installed modules on the server.
Login to the server via SSH and use command instmodsh as in the snapshot. Enter l which in return will list all the perl modules.
If you face any issues with perl modules, feel free to initiate a chat OR contact our support team.