HTTP 1990 1995 2000 2005 2010 2015 Web HTTP/0.9 HTTP/1.0 RFC1945 HTTP/1.1 RFC2068 HTTP/1.1 RFC2616 HTTP/1.1 RFC7230-5 HTTP/2 RFC7540 SPDY/2 SPDY/3 SPDY/3.1 httpbis WG HTTP-NG HPACK RFC7541 HTTP/2 http://caniuse.com/#feat=http2 HTTP (2012/6/1 2016/6/1) http://httparchive.org/trends.php?s=All&minlabel=Jun+1+2012&maxlabel=Jun+1+2016#bytesTotal&reqTotal 4 : 2 1.3 Web HTTP [ms] 0 800 1600 2400 3200 [MB