RE: Denying plaintext connections. Totally agree & great if your clients connect directly to hosting you have full control over. The biggest problem I've come across is that cloud services like CloudFlare & API gateways (Tyk for example) don't have the option (or at least I couldn't find it) to disable HTTP traffic. Plenty offer to redirect HTTP to HTTPS but I haven't been able to refuse HTTP traffic outright.

Does anyone have any recommendations for services that do offer this? (or where those options are in the named services)