SEOer总是教大家建站不能绑定多域名,会导致降权,例如A.com和www.A.com同时绑定到一个站点的话会导致页面权重分散。
301重定向的作用就是告诉搜索引擎,站点永久改变位置,假设A.com 301定向到 www.A.com 那么A.com的PR就会传递给www.A.com。
而我今天要说的当然不是这些人尽皆知的东西,事情是这样的我有个域名A.com,PR3,前几天查看域名的时候发现A.net,也没有人注册,于是买下了A.net并且301定向到了A.com,可是这两天突然发现A.net继承了A.com的PR值,也就是说A.net在短短几天内突然PR3了,并且新米没有任何外链,只是在注册完的时候提交了Google,难道301可以反向传递PR? 阅读全文…
Enter the “Number of Links From Each Page” that links to the page in question to get a Page Rank estimation. For example if 5 “Page Rank 4″ pages link to your page, then put 5 under “PR 4″.
Optional: You also have the option of changing the “Average Number of Links Per Page“. If all of the pages that link to you have 70 total links on them, then you should change the “Average Number of Links Per Page” to 70. If you are unsure then leave it at 40.
http://www.thinkbling.com/prcalc/