To install the Duplicator plugin on WordPress, you can follow these steps:
Log in to your WordPress dashboard.
Go to Plugins > Add New.
In the search box, type "Duplicator".
You should see the Duplicator plugin in the search results.
Click the "Install Now" button next to the Duplicator plugin.
After the plugin is installed, click the "Activate" button to activate it.
Once you have installed and activated the Duplicator plugin, you can use it to create a backup of your WordPress site or to migrate your site to a new host or domain. The plugin provides detailed instructions on how to use it, but here are the basic steps:
Go to Duplicator > Packages in your WordPress dashboard.
Click the "Create New" button to create a new package.
Follow the instructions to create a backup of your site and download the package files.
To migrate your site to a new host or domain, upload the package files to your new server and follow the instructions to install your site from the package.
Note that while the Duplicator plugin is generally reliable, it's always a good idea to make a backup of your site before making any major changes, including using the plugin to migrate your site.