> > * Servers with limited CPU power and which are not serving sensitive content (e.g. embedded devices, Raspberry Pis, Arduinos et al.) > I've served TLS off e

> > * Servers with limited CPU power and which are not serving sensitive content (e.g. embedded devices, Raspberry Pis, Arduinos et al.) > I've served TLS off embedded devices like these no problem On e.g. a esp8266 you can only have a single TLS connection at a time. While you can have hundreds of normal TCP sessions. > Certificates are free (WoSign, StartCom, LetsEncrypt) - WoSign doesn't work on mildy old devices - StartCom certs are expensive to revoke - LetsEncrypt doesn't exist yet