diff --git a/cookbooks/blog/files/etc/nginx/sites-available/blog b/cookbooks/blog/files/etc/nginx/sites-available/blog
deleted file mode 100644
index 549d9b5..0000000
--- a/cookbooks/blog/files/etc/nginx/sites-available/blog
+++ /dev/null
@@ -1,90 +0,0 @@
-server {
-  # allow access from localhost
-  listen 80 reuseport backlog=1024;
-  listen 443 ssl http2 backlog=1024;
-  server_name blog.kazu634.com;
-
-  ssl_certificate /etc/letsencrypt/live/blog.kazu634.com/fullchain.pem;
-  ssl_certificate_key /etc/letsencrypt/live/blog.kazu634.com/privkey.pem;
-  ssl_dhparam /etc/letsencrypt/live/blog.kazu634.com/dhparams_4096.pem;
-
-  ssl_session_cache   shared:SSL:3m;
-  ssl_buffer_size     4k;
-  ssl_session_timeout 10m;
-
-  ssl_session_tickets on;
-  ssl_session_ticket_key /etc/letsencrypt/live/blog.kazu634.com/ticket.key;
-
-  ssl_protocols TLSv1.2 TLSv1.1 TLSv1;
-  ssl_ciphers ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:AES128-GCM-SHA256:AES128-SHA256:AES128-SHA:AES256-GCM-SHA384:AES256-SHA256:AES256-SHA:DES-CBC3-SHA;
-  ssl_prefer_server_ciphers on;
-
-  ssl_stapling on;
-  ssl_stapling_verify on;
-  resolver 8.8.4.4 8.8.8.8 valid=300s;
-  resolver_timeout 10s;
-
-  # Enable HSTS (HTTP Strict Transport Security)
-  add_header Strict-Transport-Security "max-age=31536000; includeSubdomains; preload";
-
-  root /var/www/blog;
-  index index.html index.htm;
-
-  access_log   /var/log/nginx/blog.access.log   ltsv;
-  error_log    /var/log/nginx/blog.error.log;
-
-  location / {
-    gzip on;
-    gunzip on;
-    gzip_vary on;
-
-    # http2 server push:
-    http2_push_preload on;
-
-    http2_push /css/sanitize.css;
-    http2_push /css/responsive.css;
-    http2_push /css/highlight_monokai.css;
-    http2_push /css/theme.css;
-    http2_push /css/custom.css;
-    http2_push /images/profile.png;
-    http2_push /js/highlight.pack.js;
-
-    if (-e "/tmp/maintenance") {
-      return 503;
-    }
-
-    location /feed {
-      return 301 http://blog.kazu634.com/index.xml;
-    }
-
-    location /wp-content {
-      return 404;
-    }
-
-    location ~* \.css {
-      gzip_static always;
-
-      expires max;
-    }
-
-    location ~* \.js {
-      gzip_static always;
-
-      expires max;
-    }
-
-    location /images {
-      gzip_static always;
-
-      expires max;
-    }
-
-    location = /favicon.ico {
-      access_log off;
-      empty_gif;
-      expires max;
-    }
-
-    try_files $uri $uri/ /index.html;
-  }
-}