Redirect

Hope you don’t mind me just check this with you.
I want to move one site to another domain. The site will remain unchanged. So
mysite.co.uk to yoursite.co.uk
All pages will remain so
on old site after new one is ready.

Leave files intact incase i want to fall back, but remove current htaccess and upload new one with only

RewriteEngine on
RewriteRule ^(.*)$ http://www.newdomain.com/$1 [R=301,L]

then for example
mysite.co.uk/help/ will go to yoursite.co.uk/help/

https://wordpress.org/plugins/bulletproof-security/