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javascript - 像那些广告联盟，是怎么实现的呢，比如我淘宝上搜一个商品，然后优酷看视频，其它一些乱七八糟的广告百度联盟的啊，都是相关的推荐广告？
javascript - 像那些广告联盟，是怎么实现的呢，比如我淘宝上搜一个商品，然后优酷看视频，其它一些乱七八糟的广告百度联盟的啊，都是相关的推荐广告？
像那些广告联盟，是怎么实现的呢，比如我淘宝上搜一个商品，然后优酷看视频，其它一些乱七八糟的广告百度联盟的啊，都是相关的推荐广告？
这个是怎么实现的呢，不同网站不是不能实现cookie共享的吗？
难道其实他们都是合作的，或是怎么搞的，感觉有点神了？
有高手详细的解释下原理吗？
谢谢了！
回复内容：
像那些广告联盟，是怎么实现的呢，比如我淘宝上搜一个商品，然后优酷看视频，其它一些乱七八糟的广告百度联盟的啊，都是相关的推荐广告？
这个是怎么实现的呢，不同网站不是不能实现cookie共享的吗？
难道其实他们都是合作的，或是怎么搞的，感觉有点神了？
有高手详细的解释下原理吗？
谢谢了！
谈一下百度联盟吧
首先，我们在使用百度的时候，百度会记录我们的操作行为。
比如：
这是我某一天的搜索记录。
百度会长期跟踪个人行为，然后对用户进行分析。包括性别，爱好等等
当然，也包括你使用的相关百度产品也会进行分析。
下面，站长在使用百度联盟的时候，就会根据你的相关信息，给你推荐相关内容。
这是我的网站ENUE，也加入百度联盟。
iframe
====补充====
这是腾讯网首页天猫广告的源码，腾讯网通过加载
http://p.tanx.com/ex?i=mm_26051537_2367569_21224084
这一段天猫的js，用于初始话广告，这端js会陆续的加载其他的天猫js，但最终要的是加载了
http://ope.tanx.com/ex?i=mm_26051537_2367569_21224084&cb=jsonp_callback_3386&callback=&userid=&o=&f=&n=&re=1920x1080&r=1&cah=1040&caw=1920&ccd=24&ctz=8&chl=2&cja=1&cpl=6&cmm=8&cf=19.0&cg=a9af6a03f12808613c16ff3d163de1dd&pvid=acee1495435d1164d78b4af9766fed19&pvid_1=e7f394a9f05512679be354485eb0a5c5&ai=0&ac=1537&prm=45906808&cas=prm&cbh=0&cbw=700&dx=1&u=http%3A%2F%2Fwww.qq.com%2F&k=&tt=alimama%20ad
这段js，是一段jsonp的数据，data字段包含了一个iframe字符串
"<iframe scrolling=\"no\" height=90 frameborder=\"0\" width=700 style=\"border: 0pt none;\" marginheight=\"0\" allowtransparency=\"true\" marginwidth=\"0\" border=\"0\" src=\"http:\/\/strip.taobaocdn.com\/tfscom\/TB1y4V6HpXXXXXIXFXXO04pFXXX.html?name=itemdsp&url=http%3A%2F%2Fwww.qq.com%2F&iswt=1&pid=tt_26051537_2367569_21224084&refpid=tt_26051537_2367569_21224084&refpos=,n,i&adx_type=0&pvid=0ab7409100005656702e17b903bd0151_0&ps_id=acee1495435d1164d78b4af9766fed19&fl=3&tanxdspv=http%3a%2f%2frdstat.tanx.com%2ftrd%3ff%3d%26k%3da09e279ad7f7a12a%26p%3dmm_26051537_2367569_21224084%26pvid%3d0ab7409100005656702e17b903bd0151%26s%3d700x90%26d%3d17534123%26t%3d1448505390\"><\/iframe><img src=\"http:\/\/dsp.simba.taobao.com\/feedback?bid=0ab7409100005656702e17b903bd0151&v=1&e=2&p=AQq3QJEAAFZWcC4XuQO9AVFYLrjIi7dXDg%3D%3D\" style="max-width:90%"0\" height=\"0\" \/ alt="javascript - 像那些广告联盟，是怎么实现的呢，比如我淘宝上搜一个商品，然后优酷看视频，其它一些乱七八糟的广告百度联盟的啊，都是相关的推荐广告？" >"
这个iframe的最终地址是
http://strip.taobaocdn.com/tfscom/TB1y4V6HpXXXXXIXFXXO04pFXXX.html?name=itemdsp&url=http%3A%2F%2Fwww.qq.com%2F&iswt=1&pid=tt_26051537_2367569_21224084&refpid=tt_26051537_2367569_21224084&refpos=,n,i&adx_type=0&pvid=0ab7409100005656702e17b903bd0151_0&ps_id=acee1495435d1164d78b4af9766fed19&fl=3&tanxdspv=http%3a%2f%2frdstat.tanx.com%2ftrd%3ff%3d%26k%3da09e279ad7f7a12a%26p%3dmm_26051537_2367569_21224084%26pvid%3d0ab7409100005656702e17b903bd0151%26s%3d700x90%26d%3d17534123%26t%3d1448505390
题主自己用浏览器打开一下这个地址，就是那个广告。
另外题主可以上网随便百度一下js跨越访问的相关知识（随手帮你找了http://www.cnblogs.com/2050/p/3191744.html），window.name，windon.domain，iframe，jsonp，postMessage等技术都可以完成跨越访问。
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