Google Panda
Encyclopedia
Google Panda is a change to the Google
's search results ranking algorithm
that was first released in February 2011 . The change aimed to lower the rank of "low-quality sites", and return higher-quality sites near the top of the search results. CNET
reported a surge in the rankings of news websites and social Networking sites, and a drop in rankings for sites containing large amounts of advertising. This change reportedly affected the rankings of almost 12 percent of all search results. Soon after the Panda rollout, many websites, including Google's webmaster forum, became filled with complaints of scrapers/copyright infringers getting better rankings than sites with original content. At one point, Google publicly asked for data points to help detect scrapers better. Google's Panda has received several updates since the original rollout in February 2011, and the effect went global in April 2011. To help affected publishers, Google published an advisory on its blog, thus giving some direction for self-evaluation of a website's quality.
Many new ranking factors have been introduced to the Google algorithm as a result, while older ranking factors like PageRank
have been downgraded in importance.
Google
Google Inc. is an American multinational public corporation invested in Internet search, cloud computing, and advertising technologies. Google hosts and develops a number of Internet-based services and products, and generates profit primarily from advertising through its AdWords program...
's search results ranking algorithm
PageRank
PageRank is a link analysis algorithm, named after Larry Page and used by the Google Internet search engine, that assigns a numerical weighting to each element of a hyperlinked set of documents, such as the World Wide Web, with the purpose of "measuring" its relative importance within the set...
that was first released in February 2011 . The change aimed to lower the rank of "low-quality sites", and return higher-quality sites near the top of the search results. CNET
CNET
CNET is a tech media website that publishes news articles, blogs, and podcasts on technology and consumer electronics. Originally founded in 1994 by Halsey Minor and Shelby Bonnie, it was the flagship brand of CNET Networks and became a brand of CBS Interactive through CNET Networks' acquisition...
reported a surge in the rankings of news websites and social Networking sites, and a drop in rankings for sites containing large amounts of advertising. This change reportedly affected the rankings of almost 12 percent of all search results. Soon after the Panda rollout, many websites, including Google's webmaster forum, became filled with complaints of scrapers/copyright infringers getting better rankings than sites with original content. At one point, Google publicly asked for data points to help detect scrapers better. Google's Panda has received several updates since the original rollout in February 2011, and the effect went global in April 2011. To help affected publishers, Google published an advisory on its blog, thus giving some direction for self-evaluation of a website's quality.
The Panda Process
Google Panda was built through an algorithm update that used artificial intelligence in a more sophisticated and scalable way than previously possible. Human quality testers rated thousands of websites based on measures of quality, including design, trustworthiness, speed and whether or not they would return to the website. Google's new Panda machine-learning algorithm, made possible by and named after engineer Navneet Panda, was then used to look for similarities between websites people found to be high quality and low quality.Many new ranking factors have been introduced to the Google algorithm as a result, while older ranking factors like PageRank
PageRank
PageRank is a link analysis algorithm, named after Larry Page and used by the Google Internet search engine, that assigns a numerical weighting to each element of a hyperlinked set of documents, such as the World Wide Web, with the purpose of "measuring" its relative importance within the set...
have been downgraded in importance.
Significant Differences Between Panda and Previous Algorithms
- Many SEO experts have speculated that Panda takes into account user behavior patterns, gained either through user behavior at Search Engine Result Pages (SERPs), or through the Google Toolbar.
- Google Panda appears to impact an entire site's ranking or specific section, rather than just the individual pages on a site.
- Google Panda updates are rolled out periodically and are not a continuous part of the algorithm's development.