I’m somewhat new to ee but have successfully launched a multisite implementation and it’s working very well so far. I just turned on letsencrypt, and it works on all pages except for the front page, where I have one image that is not encrypted. I don’t know why. I can’t edit the URL of the image easily because it was placed with Elementor, a page builder, which doesn’t allow me to type the URL, but rather lets me choose from the media manager. Firefox identifies the image as a background image.