Nginx HTTPS config with Let's Encrypt, HTTP/2 and HTTP redirect

site.conf

server {
    listen 443 ssl http2 default_server;
    listen [::]:443 ssl http2 default_server;

    server_name domain.com www.domain.com;

    ssl on;
    ssl_certificate /etc/letsencrypt/live/domain.com/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/domain.com/privkey.pem;
    ssl_session_timeout 1d;
    ssl_session_cache shared:SSL:50m;
    ssl_session_tickets off;

    ssl_protocols TLSv1.2;
    ssl_prefer_server_ciphers on;
    ssl_ciphers "EECDH+AESGCM:EDH+AESGCM:AES256+EECDH:AES256+EDH";
    ssl_ecdh_curve secp384r1;

    ssl_dhparam /etc/dhparams.pem;

    add_header Strict-Transport-Security "max-age=31536000; includeSubdomains;";
    add_header X-Frame-Options SAMEORIGIN;
    add_header X-Content-Type-Options nosniff;
    add_header X-XSS-Protection "1; mode=block";

    ssl_stapling on;
    ssl_stapling_verify on;

    access_log /var/log/nginx/domain.com.log;

    location / {
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header HOST $http_host;
        proxy_set_header X-NginX-Proxy true;

        proxy_pass http://127.0.0.1:2368;
        proxy_redirect off;
    }

    root /usr/share/nginx/html;
    location ~ /.well-known {
        allow all;
    }
}

server {
    listen 80;
    listen [::]:80;
    server_name domain.com www.domain.com;
    return 301 https://$host$request_uri;
}