EFF has launched Certbot 1.0, see https://certbot.eff.org/
Clientsoftware to make it easy to switch from a HTTP website to,
and maintain a HTTPS certified website through free Let’s Encrypt (an ISRG initiative).
Now 80 % of websites are HTTPS-websites, but now the remainder can also easily switch.
Just install the software and it renews your Let’s Encrypt cert every 60 days all automatically.
polonus