anchor.diff:  23,bing.com,"private, max-age=0"
   24,vk.com,no-store
   25,ebay.com,
  -26,sohu.com,TIMED OUT
  +26,sohu.com,max-age=120
   27,google.de,"private, max-age=0"
   28,pinterest.com,
   29,163.com,max-age=80
  
positive.code: 43,xvideos.com,
  44,imdb.com,private
  45,google.es,"private, max-age=0"
  46,apple.com,max-age=123
  47,google.it,"private, max-age=0"
  48,xinhuanet.com,TIMED OUT
  49,amazon.co.jp,no-cache
  50,craigslist.org,"public, max-age=14400"
  51,imgur.com,"max-age=120, s-maxage=120, public, must-revalidate"
  52,neobux.com,"no-cache, no-store, must-revalidate, post-check=0, pre-check=0"
  53,stackoverflow.com,"public, max-age=60"
  54,xhamster.com,
  
negative.code: 68,vube.com,
  69,t.co,
  70,about.com,"max-age=3600, private"
  71,gmw.cn,max-age=60
  72,alipay.com,
  73,wordpress.org,
  74,googleusercontent.com,
  75,odnoklassniki.ru,"[""no-cache"", ""no-store""]"
  76,youku.com,TIMED OUT
  77,conduit.com,"public, private, max-age=3251"
  78,alibaba.com,
  79,google.com.tr,"private, max-age=0"
  80,flickr.com,private
  