Plesk

WP Toolkit – Copying Data from One WordPress Website to Another

You can copy the content of your WordPress website
including files and database to another WordPress website.

Let us say you maintain a non-public (staging) version of a WordPress
website on a separate domain or subdomain and a publicly available
(production) version of this website on a production domain. You may want
to copy data from one website to another in the following situations:

When performing the copying, keep in mind the following: