????????

????1?????л???????????????????????? HTTP caching ??? HTML5 Manifest??

????2?????????? ??????????20KB???????????????????????????????? ??????20KB????????????????

????3?????????gzip/deflate????????deflate????????????

????4?????????????????????????????????????????????????????http?????????????????Сgzip????????????????

????5??????? Yahoo Exceptional Performance ???????????????????к???????????????????????????? YSlow ???????? Google page speed ??????????????????????????????????????????? Firebug ??

????6????????????????????С??????????繤??????????????CSS Image Sprite??????????http????????

????7???????????????????????????????????????????????????????????——??????????????????Ajax????????

????8??????????????????CSS??JavaScript?????????cookie????????????????÷??????????????cookie????????????????????????????cookie??????????????????????????http??????????cookie??????????????÷????????”??????????”??Content Delivery Network??CDN????

????9????????????HTTP??????С????

????10?????Google??Closure Compiler???JavaScript?????YUI Compressor??ɡ????? ??????????????Google???????????????????????????????

????11????????????????favicon.ico???????????????и?????????????????????????????????????????????????????????????????????????404???????????????????????????????????404????????ico??????????

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

????1????? “?????????????” URL???磺??? example.com/pages/45-article-title ?????? example.com/index.php?page=45

????2????????????????? # ???????????? #! ????????????????????$_REQUEST["_escaped_fragment_"] ????Google?????????????????仰???./#!page=1 ??Google??????????? ./?_escaped_fragments_=page=1?? ??????????????URL?е?#????????????????????????????????????Google??????AJAX???????????????#!????Google???“#!”???“_escaped_fragment_”???????????????Twitter???????????????#!??????磺https://twitter.com/#!/your_activity??????????????????Firefox ?? Chromium?? history.pushState({"foo":"bar"}?? "About"?? "./?page=1"); ??????????????????????????????????????????????????????????????????????? ? ?????? #! ?????????????????????棬???????AJAX????????????????

????3????????”???????”???????????????????????????????SEO?????????????”????????”??screen reader???????Ч????

????4?????????XML sitemap???????????λ???????/sitemap.xml????????????????￡???????????????????????????????????????

????5???????ж??URL????????????????????????????<link rel=”canonical” … />????????? Google Webmaster Tools ????????????

????6?????Google??Webmaster Tools??Yahoo??Site Explorer??

????7???????????Google Analytics???????????????????????Piwik????

????8????? robots.txt ??????????????????ι??????

????9??????????? (??? 301 ????????) ?????????? www.example.com ???? example.com(????????????) ??????????Google??rank?????????仯???????

????10??????????????е????涼???????Щ?????????????á????????????????????????????·???????????￡?

????11????????????з?????????????????????????????????òο?Google??sitemap???Э?顣Tim Farley???????????????????м?????????