Problem with domain resolve

When I'm using spdycheck to check one of my domains
SPDYCheck: Testing Websites for SPDY Support

It reports that it still allow http access. I don't get it. If you use the browser to go to that domain using http, it will redirect to http but when I curl it, it doesn't show redirection

Code:

curl -I http://truongtot.vn
HTTP/1.1 200 OK
Server: nginx centminmod
Content-Type: text/html; charset=UTF-8
Connection: keep-alive
Vary: Accept-Encoding
Date: Fri, 12 Dec 2014 23:44:56 GMT
X-Page-Speed: 1.9.32.2-4321
Cache-Control: max-age=0, no-cache

this is my conf

Code:

# redirect from www to non-www
# uncomment, save file and restart Nginx to enable
server {
            listen 80;
            server_name www.truongtot.vn;
            return 301 https://truongtot.vn$request_uri;
       }

---

 

Code:

uname -n
ryan.truongtot.vn

I gotta admit it was bit confusing following your Getting started guide because you used alternatively between host and hostname and I don't know when I should do what. Your example used hostname as well instead of the real one you used on one of your domain.
Content of my /etc/hosts

Code:

127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6
128.199.140.175 ryan ryan.truongtot.vn
2400:6180:0:d0::143:8001 ryan ryan.truongtot.vn

 

Code:

# redirect from www to non-www
# uncomment, save file and restart Nginx to enable
server {
  listen 80;
  server_name www.truongtot.vn;
  return 301 https://truongtot.vn$request_uri;
  }
server {
  listen 443 ssl spdy;
  server_name truongtot.vn;

  ssl_certificate  /usr/local/nginx/conf/ssl/truongtot.vn/ssl-unified.crt;
  ssl_certificate_key  /usr/local/nginx/conf/ssl/truongtot.vn/ssl.key;

  ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
  ssl_session_cache  shared:SSL:10m;
  ssl_session_timeout  10m;
ssl_ciphers ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-DSS-AES128-GCM-$
  ssl_prefer_server_ciphers  on;
  add_header Alternate-Protocol  443:npn-spdy/3;
  add_header Strict-Transport-Security "max-age=31536000;";

  resolver 8.8.8.8;
  ssl_stapling on;
  ssl_stapling_verify on;
  ssl_trusted_certificate /usr/local/nginx/conf/ssl/truongtot.vn/ssl-trusted.crt;

# ngx_pagespeed & ngx_pagespeed handler
#include /usr/local/nginx/conf/pagespeed.conf;
#include /usr/local/nginx/conf/pagespeedhandler.conf;
#include /usr/local/nginx/conf/pagespeedstatslog.conf;

  # limit_conn limit_per_ip 16;
  # ssi  on;

  access_log /home/nginx/domains/truongtot.vn/log/access.log combined buffer=32k;
  error_log /home/nginx/domains/truongtot.vn/log/error.log;

## redirect www to no-www
  if ($host = 'www.truongtot.vn' ) {
  return 301 https://$server_name$request_uri;
  }
root /home/nginx/domains/truongtot.vn/public;
location /data {
  location ~ \.html$ {
  internal;
  }
  internal;
  }

  location /internal_data {
  location ~ \.(?:data|html|php)$ {
  internal;
  }
  internal;
  }

  location /library {
  location ~ \.(?:default|html|php|txt|xml)$ {
  internal;
  }
  internal;
  }

  location / {
  try_files $uri $uri/ /index.php?$uri&$args;
  index index.php;
  }

  include /usr/local/nginx/conf/staticfiles.conf;
  include /usr/local/nginx/conf/php.conf;
  include /usr/local/nginx/conf/drop.conf;
}