In the firefox developer tools, under the "Net" panel, resources that are loaded have their load time split into different colors/categories. These are:

  • DNS Lookup
  • Connecting
  • Blocking
  • Sending
  • Waiting
  • Receiving

What do each of these represent, and more specifically, does any of them accurately represent the amount of time that the server is thinking (accessing the database, running algorithms, etc)?

Thanks.

firefox firebug
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