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Google Penguin 2.1 is launching today, according to a tweet from Google’s Distinguished Engineer Matt Cutts.
The first update to the second-generation Penguin algorithm designed to target web spam will affect “~1% of searches to a noticeable degree.”
Google Penguin 2.0 went live on May 22 and affected 2.3 percent of English-U.S. queries. When it launched, Cutts explained that while it was the fourth Penguin-related launch, Google referred to the change internally as Penguin 2.0 because it was an updated algorithm rather than just a data refresh.
“It’s a brand new generation of algorithms,” Cutts said in May. “The previous iteration of Penguin would essentially only look at the home page of a site. The newer generation of Penguin goes much deeper and has a really big impact in certain small areas.”
This is Google’s fifth Penguin-related launch.
Google originally launched the algorithm that was eventually become known as Penguin 1.0 in April 2012. There were two refreshes last year: in May and October.
企鹅算法旨在识别和惩罚使用黑帽SEO技术的网站。黑帽SEO是指违反搜索引擎准则的技术和策略，例如关键词填充、隐藏链接、门户网页、私有链接网络等。
企鹅算法的目标是通过对网站链接的数量、质量和相关性等因素进行评估，来判断网站是否采用了不当的SEO技术，从而对网站的排名产生影响。
企鹅算法的不断升级，意味着搜索引擎对于不良SEO技术的惩罚更加严厉，网站在进行SEO优化时需要遵循搜索引擎的准则，采用白帽SEO技术，以避免被算法惩罚。
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看来博主很久没更新了。