I get asked this question a lot and I know it can be confusing. So to simplify it, I believe this article said it best. A domain name is your website’s address on the internet where people can access your website. It is something that internet users type in the browser’s URL bar to visit your site.
The time has come to transition your WordPress website to a secure SSL version — from http to https. In the past, only websites with e-commerce or sensitive data needed to have an SSL certificate (security certificate) and be served as https with a green padlock. But that is no longer the case, and you