It’s easy to do through FileZilla. Create a backup of the site files and database;
Uploading site and database files to a new hosting;
Change NS-servers and links (if the site is transferred to another domain or transfer is carried out from the local hosting).
Make changes to configuration files, if necessary.
Here is an example of how to move a site to a WordPress CMS.
A dump (copy) of the database is done using the phpMyAdmin interface. File.* sql or its archive is downloaded to your computer. Site files are also copied to the hard drive.
In the root folder on the new hosting "uploaded" via FTP archive site files.
A clean MySQL database is created on the new hosting.
Unpack the archive with the site files so that they were placed in the root folder on the hosting. For example, on the old hosting it was a folder "www", and on the new – "html".
Going into the phpMyAdmin interface on the new hosting, upload and unpack the archive with the database dump. The interpreter for this procedure is built-in, as is the decompressor.
In the configuration file, change the settings of the database (server, username, password).
In the domain control panel, you change the NS records to the records of the new hosting.