Fefe's Criticism of SPDY - I'm not exactly a die-hard Fefe fan, but his criticism of Google's new protocol is, in my opinion, quite valid. My opinion on SPDY is also rather negative - the points of criticism that Google has with HTTP could be easily resolved within HTTP. Multi-Request? We already have keep-alive to minimize connection setups, expanding this to multi-request where you send multiple requests at once and then immediately get all the data would not be an unsolvable problem. SSL has been available for HTTP for a long time. Compressed headers? Sorry, but the headers really don't make up the large part of the data, compressing them doesn't really bring anything.