If you want to make sure SSL is always loaded on your WordPress, you need to add a force SSL plugin in WordPress. There is a lot of SSL plugin options, but after testing them all, we found only one that worked correctly and was easy to use: 

WP Force SSL

If you search for this plugin in the add new plugin section in WordPress, it should show up first. Once activated, it already has the correct settings in place.

Stats as of 03/19/2021

Version: 1.57
Author: WebFactory Ltd
Last Updated: 2 weeks ago
Requires PHP Version: 5.2 or higher
Active Installations: 100,000+
5.0 rating based on 139 ratings