After you have successfully migrated your content you can update your domain nameservers. Once this step has been completed you will not have access to your content on your previous hosting account. This step can take anywhere from 1 – 48 hours. Once completed advance to step 4.
Once your domain DNS has updated successfully you will be able to install your free SSL certificate. You can check WhoIS to see if it has updated. If it has not you will get an error when trying to install the certificate. Don’t worry you can retry if it is not successful. Congrats you are now done.
If you successfully installed the SSL you should have access to your website. Make sure that your content moved over correctly and is displaying correctly. If it is not you will need to change your DNS back to your old hosting account to access your site. Make an export or migration and start over skipping the SSL step.