listen 443 ssl;
listen [::]:443 ssl;

ssl_certificate /home/letsencrypt/output/latest.pem;
ssl_certificate_key /home/letsencrypt/domain-key.pem;

# https://wiki.mozilla.org/Security/Server_Side_TLS
ssl_protocols TLSv1.2;
ssl_prefer_server_ciphers on;
ssl_ciphers 'ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256';

add_header "Strict-Transport-Security" "max-age=7776000; includeSubdomains" always;
add_header X-Frame-Options "DENY" always;
add_header Content-Security-Policy "upgrade-insecure-requests" always;