??????Web?????????????????????????????????????д????????????????????м???????????????????????￡?????????
?????????????й???
????????????????????
????1.?????
????2.????????????????
????2.Web PageTest
????3.PingDom Tools
????4.GTmetrix
??????????????????????
????1.Chrome???????F12
????2.Firefox?????YSlow??Yahoo?????
????3.Page Speed??google??
????????????????????????????

?????????
?????????????

????a)????????
???????????????????????????????????????(??????????+????????)
????????????????????=DNS???????+???????????+SSL??????+100ms. ??????????10ms??1??.
????b)??ó??????keep alive??
??????????? ??????????????????????????????????????????????????(socket)
???????????????????????????"Connection: keep-alive"HTTP????????????????????????????????????
????c)????GZIP???
???????????????????????("text/*"??"*javascript*")
???????????????????????????"Transfer-encoding: gzip"???????????????????????????:?÷?=????x(-???gzip?????????%)
????d)?????