How Much Faster is SPDY?

Written by John Ponio    Monday, 18 June 2012 16:12

Fiber Optic Cable End

A new protocol called SPDY (pronounced the same way was "speedy," and it's no an acronym) has been making the rounds around the internet. The protocol is meant to be more secure and faster than the currently-used HTTP. What it is is a modification of HTTP; what it isn't is a replacement for HTTP. Since it got more mainstream, many people have claimed that websites that use SPDY load faster than those websites that don't use SPDY. Recently that claim was put to the test, and the results are interesting.

Guy Podjarny, who is a web performance researcher who currently works at Akamai as a Chief Product Architect, recently set out to test how speedy SPDY really is. For a quick summary, SPDY turned out to be faster than HTTPS but actually slower than HTTP. His tests, from the looks of it, were very fair to all protocols. The most interesting part of his discoveries? HTTP isn't the speed bottleneck for most websites. One of the main bottlenecks is having data on too many domains, which makes pages take longer to load because your browser has to access more servers. 

I'll try not to steal too much thunder from the original author. You can read the full details of his tests and his results on his blog here