How to Move WordPress to a New Domain (Safely + Without Losing SEO Rankings)
For the first part of this tutorial, I’m not going to go especially in-depth because many of the steps are identical to our tutorial for migrating WordPress to a new host. If at any point during the next few steps you find yourself lost, it’s a good idea to consult that article for more information.
How to Move WordPress Site to a New Domain (Without Hurting SEO)
Additionally, keep an eye out for previous redirects on your old site that might create multiple redirects on your new site and even a redirect loop error. For example, page A that redirects to page B on the old site will cause a three-step redirect on the new site i.e. page A -> page B -> page B on new site.