SSL

Renew Certificate

- Congratulations! Your certificate and chain have been saved at
  /etc/letsencrypt/live/kluge-pferde.de/fullchain.pem. Your cert will
  expire on 2016-09-17. To obtain a new or tweaked version of this
  certificate in the future, simply run letsencrypt-auto again with
  the "certonly" option. To non-interactively renew *all* of your
  certificates, run "letsencrypt-auto renew"

Test SSL

https://www.ssllabs.com/ssltest/analyze.html?d=www.kluge-pferde.de