Since a decade or so we have been using HTTP 1.1 for all kind server requests in application layer.There are a lot of latency issues when we used that for our traditional request response approach and the only thing we have found is hacks around this old HTTP 1.1 to suffice or solve a particular problem. Hence that created a need for new version of HTTP which addresses all these issues at foundational protocol level. I have been reading and exploring this a lot lately and have some useful things listed out as I explored it and can help even a beginner figure out HTTP 2. HTTP 2 SPDY is a networking protocol introduced by Google in 2009. Its aim was to decrease web latency(time interval between request and response) and increase security. HTTP/2 is a clone of SPDY. Google has now stopped developing SPDY and started working on HTTP/2 with the same ideas of SPDY. HTTP2 is a binary protocol where as HTTP1.1 is an text based protocol Here is a simple explanation to it :