Change to Google's search results ranking algorithm
Google's Google Panda is a major change to the company's search results ranking algorithm that was first released in February 2011. The change aimed to lower the rank of "low-quality sites" or "thin sites",[1] in particular "content farms",[2] 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.[3] This change reportedly affected the rankings of almost 12 percent of all search results.[4] 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.[5] In 2016, Matt Cutts, Google's head of webspam at the time of the Panda update, commented that "with Panda, Google took a big enough revenue hit via some partners that Google actually needed to disclose Panda as a material impact on an earnings call. But I believe it was the right decision to launch Panda, both for the long-term trust of our users and for a better ecosystem for publishers."[2]
Google's Panda received several updates after the original rollout in February 2011, and their effect went global in April 2011. To help affected publishers, Google provided an advisory on its blog,[6] thus giving some direction for self-evaluation of a website's quality. Google has provided a list of 23 bullet points on its blog answering the question of "What counts as a high-quality site?" that is supposed to help webmasters "step into Google's mindset".[7] It has been incorporated in Google's core algorithm since 2015.[8]
The name "Panda" comes from Google engineer Navneet Panda, who developed the technology that made it possible for Google to create and implement the algorithm.[9][4]
^"How Google Panda & Places Updates Created A Rollercoaster Ride For IYP Traffic". Search Engine Land. Retrieved April 11, 2018.
^ abO'Reilly, Tim (November 16, 2016). "Media in the age of algorithms". O'Reilly Media. Retrieved November 17, 2016.
^Testing Google's Panda algorithm: CNET analysis, CNET.com, April 18, 2011
^ abTED 2011: The 'Panda' That Hates Farms: A Q&A With Google’s Top Search Engineers, Wired.com, March 3, 2011
^"Google Losing War With Scraper Sites, Asks For Help". Search Engine Watch.
^"Another step to reward high-quality sites". Official Google Webmaster Central Blog.
^"More guidance on building high-quality sites". Google. Retrieved April 11, 2018.
^1.3kshares; 78kreads. "A Complete Guide to the Google Panda Update: 2011-21". Search Engine Journal. Retrieved December 2, 2021.{{cite web}}: CS1 maint: numeric names: authors list (link)
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