国内站群服务器 站群定义的陈旧vs新鲜文档

站群高度重视内容的“新鲜度”。但是，站群如何根据内容的“陈旧性”对其进行定义？站群的“历史数据专利”在WebmasterWorld和SEroundtable上进行了审查，阐明了站群认为是新鲜的内容以及可以定义为陈旧文档的内容。

Bill Slawski借助两个示例，在总结专利方面做得很出色：

根据站群本身：

过时的内容是指一段时间内国内站群服务器未更新的文档，因此包含过时的数据（“

不再更新，重要性降低，由另一个文件取代

”）。博达站群管理

文档的陈旧性可能基于：

文档创建日期，

固定增长，流量，

内容变更，

前向/反向链接增长等

站群专利解释了如何使用四个因素发现过时的内容：

基于查询的因素;

基于链接的标准;

基于流量的标准;

基于用户行为的标准。

1.基于查询的因素基本上是指分析选择SERP中的哪些页面ed by users.

Besides, the search engine tracks which queries one and the same document ranks for: “discordant set of queries” might mean the page is spammy.

2. Link-based factor ****yzes the page backlinks monitoring the dates that new links appear (i.e. “indexed by 站群 or the date the linking page was created”) to a document and that existing links disappear. By looking into the the rate at which links appear or disappear over time and how many links appear or disappear during a given time period, the search engine is able to conclude whether there is trend toward appearance of new links versus disappearance of existing links to the document or vice versa:

downward trend = > stale document (more links disappear than appear);

decrease in links = > stale content (either sudden or significant link disappearance).

3. Traffic – based criteria: a large reduction in traffic may indicate that a document may be stale.

4. User-behavior-based criteria: if people spend too little time on the页面（与相似/紧密相关的页面相比），可能意味着文档过时。