I've stopped opening port 80 at all for some of my web services. The parent domain is in the HSTS preload list, so no modern browser should ever be trying to c

I've stopped opening port 80 at all for some of my web services. The parent domain is in the HSTS preload list, so no modern browser should ever be trying to connect to port 80. And (as the fine article intimates) API calls shouldn't be available on port 80 anyway.