ssl_session_timeout 1d;
ssl_session_cache shared:TLS:1m;
ssl_session_tickets off;

ssl_protocols TLSv1.3 TLSv1.2;
ssl_ciphers 'EECDH+AESGCM:EECDH+AES256 !aNULL:!MD5';
ssl_prefer_server_ciphers on;
ssl_dhparam /etc/ssl/certs/dhparam.pem;

ssl_stapling on;
ssl_stapling_verify on;

add_header Strict-Transport-Security "max-age=15768000; includeSubDomains" always;
add_header X-Frame-Options DENY;
add_header X-Content-Type-Options nosniff;