Understand this to make your site super fast.
<p>

<q>Understand the Internet in less than 25 minutes.</q>

<ol>
  <li>IP address Lookup: Caching,  /etc/hosts, DNS server, (UDP), <a href="https://en.wikipedia.org/wiki/Dig_(command)">dig</a></li>
  <li>Opening a TCP socket to port 80 SYN, ACK, <a href="https://en.wikipedia.org/wiki/Content_delivery_network">CDNs</a></li>
  <li>Security Stuff  (use https on port 443) <a href="https://en.wikipedia.org/wiki/Transport_Layer_Security">TLS</a></li>
  <li>HTTP Request  (<a href="https://httpd.apache.org/">Apache</a>, <a href="https://www.nginx.com/">Nginx</a>, HTTP <a href="https://en.wikipedia.org/wiki/Daemon_(computing)">Daemon</a></li>
  <li>Server Things (GET/POST/...)</li>
  <li>HTTP Response (<a href="https://en.wikipedia.org/wiki/List_of_HTTP_status_codes">HTTP Response codes</a>,  <a href="https://en.wikipedia.org/wiki/CURL">curl</a>, <a href="https://en.wikipedia.org/wiki/Gzip">gzip</a>) </li>
  <li>Parsing (<a href="https://en.wikipedia.org/wiki/Document_Object_Model">DOM tree</a>, JavaScript time!) Use <a href="https://developer.mozilla.org/en/docs/Web/HTML/Element/script">script <b>async</b></a></li>
  <li>Rendering (both HTML and CSS are blocking rendering, that's why it is good to put at the top of the HTML)</li>
</ol>


<p>
<a href="http://jenna.is/server-farm-to-table-annotated">annotated slides</a>