no www in host header

Hi there,

I have an http/ https config in place which works but there is one issue our marketing team have asked about regarding no www in the URL. when users navigate to example.com the stanza redirects them to https://www.example.com fine but if they type in https://example.com the site loads but there is now www. This is apparently messing with SEO stats, etc.

I have pasted config below. I am not entirely sure why it does this I'd appreciate any thoughts.

server {
listen 443 ssl http2;

server_name .example.com;

ssl_certificate /etc/ssl/certs/example.com.crt;
ssl_certificate_key /etc/ssl/private/example.com.key;
ssl_trusted_certificate /etc/ssl/certs/ca.pem;
ssl_stapling on;
ssl_stapling_verify on;
ssl_session_cache shared:SSL:20m;
ssl_session_timeout 180m;
ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
ssl_prefer_server_ciphers on;
ssl_ciphers ECDH+AESGCM:ECDH+AES256:ECDH+AES128:DHE+AES128:!ADH:!AECDH:!MD5;

add_header Strict-Transport-Security "max-age=31536000; includeSubDomains" always;
add_header X-Content-Type-Options nosniff;
add_header X-Frame-Options DENY;

location / {
proxy_set_header X-Forwarded-For $remote_addr;
proxy_set_header Host $http_host;
proxy_pass "http://127.0.0.1:3000";

}

}

server {
listen 80;
server_name .example.com;
return 301 https://www.example.com$request_uri;

}