TCP, HTTP and SPDY Deep Dive

The dirty networking secrets web programmers never think about when designing their applications.
Free tutorial
Rating: 4.0 out of 5 (1,354 ratings)
65,842 students
1hr 21min of on-demand video
English [Auto]

By the end of the course, you'll be able to optimize your web server and your web application to reduce the impact of TCP and HTTP on your web application response times.


  • Basic familiarity with Internet technologies, including IP, TCP and DNS.


This course will tell you how TCP and HTTP (the transport and presentation-layer protocols used by web-based applications) impact the web application responsiveness and page load time.

We'll look at waterfall diagrams created by web browser development tools, cover the intricate details of TCP and HTTP (including slow start, congestion windows and pipelining), and try to figure out whether SPDY (the next-generation HTTP from Google) makes sense.

The course is delivered via short video lectures in which I gradually expose the problems your web browser faces when trying to fetch all components of a web site, and the solutions you could use to make the process faster.

You can take your time and go at your own pace, or rush through the course and be done in an hour or two. However, I would encourage you to proceed slowly, build your own test environment (using your mobile device or WAN emulator like WANem) and explore what's going on behind the scenes with browser development tools and Wireshark.


Who this course is for:

  • Advanced web application developers looking to squeeze the last drops of performance from their application.
  • Network engineers trying to understand the impact of the network on the application workload.


Internetworking veteran
Ivan Pepelnjak
  • 4.0 Instructor Rating
  • 1,354 Reviews
  • 66,148 Students
  • 1 Course

Ivan Pepelnjak, CCIE#1354 Emeritus, is the chief technology advisor at NIL Data Communications. He has been designing and implementing large-scale service provider and enterprise networks as well as teaching and writing books about advanced technologies since 1990. He’s author of several Cisco Press books, prolific blogger and writer, occasional consultant, and author of a series of highly successful webinars.

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