Nginx SSL/TLS configuration for "A+" Qualys SSL Labs rating

nginx.conf

server {
  listen [::]:80;
  server_name domain.tld www.domain.tld;

  # Redirect all non-https requests
  rewrite ^ https://$host$request_uri? permanent;
}

server {
  listen [::]:443 ssl http2;
  server_name www.domain.tld;
  
  ssl on;
  # Certificate(s) and private key
  ssl_certificate /etc/ssl/domain.crt;
  ssl_certificate_key /etc/ssl/domain.key;

  # openssl dhparam 4096 -out /etc/ssl/dhparam.pem
  ssl_dhparam /etc/ssl/dhparam.pem;

  ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
  ssl_prefer_server_ciphers on;
  ssl_ciphers "EECDH+AESGCM:EDH+AESGCM:ECDHE-RSA-AES128-GCM-SHA256:AES256+EECDH:DHE-RSA-AES128-GCM-SHA256:AES256+EDH:ECDHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA256:ECDHE-RSA-AES256-SHA:ECDHE-RSA-AES128-SHA:DHE-RSA-AES256-SHA256:DHE-RSA-AES128-SHA256:DHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA:ECDHE-RSA-DES-CBC3-SHA:EDH-RSA-DES-CBC3-SHA:AES256-GCM-SHA384:AES128-GCM-SHA256:AES256-SHA256:AES128-SHA256:AES256-SHA:AES128-SHA:DES-CBC3-SHA:HIGH:!aNULL:!eNULL:!EXPORT:!DES:!MD5:!PSK:!RC4";

  # Caching session
  ssl_session_cache   shared:SSL:50m;
  ssl_session_timeout 1d;
  ssl_session_tickets off;

  # OCSP stapling
  ssl_stapling on;
  ssl_stapling_verify on;
  resolver 8.8.8.8 8.8.4.4;

  ssl_trusted_certificate /etc/ssl/intermediate.pem;
  ssl_buffer_size 16k;

  # Set HSTS to 365 days
  add_header Strict-Transport-Security 'max-age=31536000; includeSubDomains';
}

I guess this need to be updated by now ;-)

This is definitively too outdated for today's standards, tls 1.0 and 1.1 are out of the game .
You could try guys with these:

ssl_certificate /somepath/fullchain.cer;
ssl_certificate_key  /somepath/key.key;
ssl_trusted_certificate  /somepath/ca.cer;

ssl_session_timeout 1d;
ssl_session_cache shared:MozSSL:10m;  # about 40000 sessions
ssl_session_tickets off;
ssl_protocols TLSv1.2 TLSv1.3;
ssl_ciphers ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384:DHE-RSA-CHACHA20-POLY1305;
ssl_prefer_server_ciphers off;
# OCSP stapling
ssl_stapling on;
ssl_stapling_verify on;