判断反向链接质量高低的标准 - Ethan导读

Ethan导读：

这是一篇很好的文章，提示了我们在寻找反向链接时应该注意什么，对不对鬼才知道，但是看起来很有道理。

首先要看看对方页面本身质量如何，受以下因素影响：

1，Inbound and outbound link relationships

2 Whether a page is considered an expert page for the theme

3 Page rank

4 Whether a page appears in a directory listing like DMOZ

然后看相关性。我们都知道对方页面和自己页面的相关性越强越好，搜索引擎是怎么判断的？搜索引擎看对方页面的文字和你的页面的相关性。对方页面那么多文字，搜索引擎重点看哪里的文字？三个地方 - title文字H文字和你的链接文字。这些文字叫做reputation keyphrase 各有各的作用域，详见英文原文。title文字的权重大于H文字，H文字的权重大于链接文字。

在搜索引擎为你的关键词排名时，对方页面的reputation keyphrase文字对其作用域内指向你的链接起作用。被搜索的关键词和这个reputation keyphrase文字相关性越强越好。

评价相关性的时候首先当然要看被搜索的关键词在reputation keyphrase文字中存在不存在，如果存在再看被搜索的关键词在reputation keyphrase文字中的密度和位置。密度越高越好，位置越靠前越好。

总之，在考察对方页面的相关性的时候，重点看对方页面的title文字H1文字中的关键词，这些关键词最好就是你的页面的关键词，这些关键词重复次数越多越好，这些关键词越靠前越好。至于你的链接文字，则完全在你的掌握之中，毫无疑问要放上你的页面的关键词。

英文原文：

Link Reputation and Your Website

-Understanding its benefits to search engine optimization

by Michael Marshall
Jan 07 2004

Definition of link reputation

Understanding Link Reputation is extremely important for any webmaster or others concerned with search engine ranking. It involves the relationship backlinks (links pointing back to you) have to a target web page and the context of those backlinks. This relationship and context can be measured with respect to a particular search query or theme and has the consequence of revealing how highly a backlink speaks about your web page with regard to that theme. If link popularity is how many pages talk about you link reputation is how well backlinks talk about you - quality vs. quantity.

Search engines evaluate link reputation differently putting varying weight on different factors:

Inbound and outbound link relationships
Whether a page is considered an expert page for the theme
Page rank
Whether pages are affiliated to each other (based on IP address and/or domain name
Whether a page appears in a directory listing like DMOZ.

Importance of link reputation

AltaVista AOL Google HotBot Inktomi MSN Teoma and Yahoo! all use link reputation as a major factor in ranking web pages. What backlinks say about a target page and how well they say it can increase or decrease the relevancy of that page to a specific search query or theme in the eyes of a search engine. Therefore it has a direct influence on your ranking and consequently on the amount of traffic to that target page.

Context of a backlink

The context of a backlink is very important and includes but may not be limited to the link t

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