They use HTTP with an addition in their servers similar to this plugin: http://h264.code-shop.com/trac http://h264.code-shop.com/trac to do HTTP scrubbing. Goo

They use HTTP with an addition in their servers similar to this plugin: http://h264.code-shop.com/trac http://h264.code-shop.com/trac to do HTTP scrubbing. Google also used Akamai for its Google Live broadcast which indicated that their network couldn't do RTMP (at the time).