1. Download your files and export your database ( mysqldump -u [username] -p old_db > old_db.sql )
2. Upload your files to new domain
3. Create new database
4. Import old database to the new one ( mysql -u [username] -p new_db < old_db.sql )
5. Change base url in your database:
UPDATE core_config_data
SET value = ‘http://newdomain.com/’
WHERE path IN (‘web/secure/base_url’, ‘web/unsecure/base_url’);
6. Change base link url to avoid redirects to old domain:
UPDATE core_config_data
SET value = ‘http://newdomain.com/’
WHERE path IN (‘web/unsecure/base_link_url’);
7. If is needed change root url:
UPDATE core_config_data
SET value = REPLACE(value, ‘http://olddomain.com/’, ‘http://newdomain.com/’)
WHERE path = ‘design/head/includes’;
8. Update database details in app/etc/env.php.
If you need help, get in touch!