le’s Panda algorithm update was launched 12 years ago

Today marks 12 years since Google released the Panda update. The Panda algorithm update had a profound and lasting impact on SEO and content strategies over the years.

This is a history of the Google Panda algorithm updates.

What was the Google Panda update like?

Google Panda was a significant algorithm update which impacted search rankings in 11.8% of U.S. queries.

Google stated that Panda was created to lower the ranking of low-quality websites (“sites that have low-value added for users, copy material from other sites or sites that are not very useful”), and to reward high-quality sites with original content (“sites with original information and research such as in-depth reports and thoughtful analysis”).

Although the algorithm was officially launched on February 23, 2011, we only learned of it on February 24, 2011.

Panda did not only affect content farms. Panda wreaked havoc on websites of all sizes and across industries.

Multiple reports have been made about companies closing down because they relied on Google traffic for many years. Their business was destroyed once they lost their organic traffic.

Google launched Panda in 2011, and announced updates and refreshes on a nearly monthly basis over the next two years. This guide will provide a detailed timeline as well as our coverage of these updates.

Google Panda wasn’t a penalty. Websites that were impacted by the Google Panda Update were algorithmically downgraded. This means that no Google employee was able to manually cause the lower rankings.

Panda was a penalty for anyone who was affected by it. Google doesn’t view downgrading website rankings algorithmically as a penalty.

Google Panda was launched.

Google Panda’s main focus was on low-quality content. Google tried to solve its content farming problem in 2011.

A “content farm”, as it is commonly known, was a website that hired freelance writers to produce as much content as possible. These companies had one goal: to rank highly in Google’s search results, especially for high-traffic keywords. The quality of articles was often poor.

These content farms had high rankings which meant they received lots of traffic. They monetized the traffic through display advertising. Ironically, many of these sites used Google AdSense. Demand Media is the most famous example of the content farm model. Suite 101 was another large content farm.

It was interesting to note that many of the content problems Google was trying solve in 2010 had been solved by the Caffeine Update. Google began crawling content more quickly and the index grew rapidly. However, it meant that some “shallow content” was ranking prominently.

Business Insider published an article that had the rather simple headline: Google Search Algorithm Has been Ruined, It’s Time to Move Back To Curation. TechCrunch also featured: Why We Desperately Want a New (and better) Google.

Google made headlines with its content farms and SEO industry on February 24, 2011. Google had an easy way to distinguish high-quality websites from low-quality ones.

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Google named it Panda because of its unique name.

Amit Singhal (head of Google search), revealed the origins of the Panda name in an interview with Wired.

“Well, we named it after an engineer and his name was Panda. We internally called him a big Panda. He was one the key men. He was the one who made it possible a few months ago.



– Google’s Amit Sharma in 2011

Navneet Pande is the full name of this Google engineer.

The update was not referred to outside of Google as “Panda” when it first launched. Danny Sullivan, Search Engine Land founder, called it the “Farmer” update – until Wired revealed the Panda name. If you see the Farmer name in any of our Panda coverage, it’s because we did.

Google Panda algorithm explained: How it works

Many speculations followed the launch of Google Panda. We won’t repeat the Panda myths here as most of it is obsolete today.

Here’s what we found out about Google Panda and its unique features.

Panda was an algorithm that was applied to websites

Panda evaluates the quality of all websites. This is the most important thing to know about Panda.

Here’s what Gary Illyes (Google webmaster trends analyst) said to Search Engine Land during a 2016 interview.

“… We don’t consider Panda a penalty, but an algorithm that is applied to sites…or sites as a whole.

It looks at the majority of pages to determine the site’s quality. It allows us to rank pages from a site, and adjust the rankings accordingly.


In 2016, Gary Illyes from Google.

Illyes also confirmed that Panda degrades content. This basically means that low-quality content can hurt ranking.

John Mueller, Google’s director of web architecture, also stated that Panda uses site architecture as a way to evaluate website quality.

Was it possible to remove or improve low-quality content?

Michael Wyszomierski (a member of Google’s webspam team) posted a message on a Webmaster Central help thread:

“Our latest update was designed to lower rankings for low-quality websites, so webmasters need to ensure that their sites are of the highest quality. To detect low-quality sites, we looked at several signals. People searching for information on Google don’t necessarily want to see poor quality content, copied content from other websites, or information that isn’t very useful. Webmasters need to be aware that poor quality content can have an impact on a site’s overall ranking. If you feel that you have been negatively affected by the change, you should review all pages on your site and try to improve their quality. Your rankings could improve if you remove low-quality pages or move them to another domain.


– In 2011, Michael Wyszomierski from Google

Important information about Panda

Google later tried to reverse the decision to remove content. Google began to recommend adding high-quality content, and fixing low-quality content. It is likely that many SEO professionals started to apply a metaphorical blowtorch instead of a scalpel to their content.

Illyes stated that Panda was not helped by pruning at SMX East 2017.

It is very possible that your low-quality content prevented you from being Pandalyzed. It is more about making sure that the content that is ranking does not rank higher than it should. … It is not compatible with the current core algorithm and may cause your traffic to drop further. Panda ignores anything you rank artificially. Instead, you should invest resources in improving content. If that is not possible, consider removing it.


– Google’s Gary Illyes, in 2017

Google on how to determine if a website is ‘high-quality.

Google published 23 questions on May 6, 2011 to explain how Google searches high-quality websites. This was to assist those who have been adversely affected by Panda:

How to recover from Panda

Anyone whose website was affected by Panda has one big question: How can I recover? Google also provided some additional information, including a link to the post with 23 questions.

Google’s Matt Cutts stated that it was possible for 100% to be recovered during a Google Search Central Hangout from India on July 9, 2012. How?

Take a look at your site and ask yourself: “How compelling is it?” We are looking for high-quality sites. We want something that you love, where you feel happy and can tell others about it. It’s so useful.


Google’s Matt Cutts 2012

Here’s the video

Cutts also shared some high-level insights in a Google Search Central video that was released September 11, 2013.

“… The overriding goal is to ensure that you have high-quality content. It’s the kind of content people love, engaging, the kind that people will refer to or send to friends. Cutts stated that this would be the ultimate goal. …

If you don’t rank as high as you used to, it is a good idea for you to ask yourself, “OK, can I take a look at the quality content on my website?” Are there any duplicates, scraped or copied content that is not as valuable?


Google’s Matt Cutts 2013

Here’s the video

Panda was incorporated into Google’s core search ranking system

We reported on Jan. 12, 2016 that Panda was now part of Google’s core algorithm. Google has not yet confirmed the exact date.

We know that it occurred sometime in 2015, according to Google’s guide for Google Search ranking systems. This was after Google’s last Panda update (4.2) on July 17, 2015.

Mueller stated that Google’s search engine engineers had still modified Panda in June 2016. However, it was the fundamental same algorithm.

Panda was replaced with Coati

Technically, Panda is no longer in existence. This is because Panda was converted to a new algorithm called Coati a while later.

Google Coati was basically the successor to Panda. This information was provided by Hyung-Jin Kim (VP of Google Search), in November at SMX Next 222.

Even though Panda has been replaced many years ago, Panda survived through Coati as part of Google’s core algorithm.

Google Panda’s legacy

Google Panda continues to have an impact on SEO today, more than a decade since its launch. These are only three of the major changes made by Panda.

The complete Google Panda Updates timeline

Here’s a complete list of all confirmed Panda updates and refreshes. We didn’t discuss the differences between an update and a refresh. An update was a change in the Google Panda algorithm. A refresh meant that Google reapplied all signals from the latest update.

This is Search Engine Land’s coverage on Panda from 2011 through 2016.

Feb. 23, 2011: Panda Update 1.0

April 11, 2011: Google Panda Update 2.0

May 9, 2011: Panda Update 2.1

June 21, 2011: Panda Update 2.2

July 23, 2011: Panda Update

Aug. 12, 2011: Panda Update 2.4

Sept. 28, 2011: Panda Update 2.5

Oct. 19, 2011: Panda Update 3.0

Nov. 18, 2011: Panda Update 3.1

Jan. 18, 2012: Panda Update 3.2

Feb. 27, 2012: Panda Update 3.3

March 23, 2012: Panda Update 3.4

April 19, 2012: Panda Update 3.5

April 27, 2012: Panda Update 3.6

June 8, 2012: Panda Update 3.7

June 25, 2012: Panda Update 3.8

July 24, 2012: Panda Update

Aug. 20, 2012: Panda Update 3.9.1

Sept. 18, 2012: Panda Update 3.9.2

Sept. 27, 2012: Panda Update #20

Nov. 5, 2012: Panda Update #21

Nov. 21, 2012: Panda Update #22

Dec. 21, 2012: Panda Update #23

Jan. 22, 2013: Panda Update #24

March 14, 2013: Panda Update #25

July 18, 2013, Panda Update #26

May 20, 2014: Panda Update 4.0

Sept. 23, 2014: Panda Update 4.1

July 17, 2015: Panda Update

The post Retrospective: Google launched the Panda algorithm upgrade 12 years ago was first published on Search Engine land.

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