Google Panda 4.2 Update Now Rolling Out

google-panda-4.2Google recently (24th July 2015) confirmed that Google Panda Update is now rolling out, and that it should take several months to fully complete.  Gary Illyes further stated that it will affect 2-3% of search queries.  Panda is an algorithm update that focuses on Content Quality.

The news of the update come hot on the heels of an announcement that the Update had been delayed for technical reasons, although no elaboration was made at the time of the cause.  In addition, there have been a few false alarms with some general algorithm changes by Google that targeted content quality, such as the May Update.

In order to be as detailed as possible, we will talk a little about what Google Panda is,  how long the it is likely to take to complete its roll out and finally the number of websites that that will be affected by the latest update.

Google Panda – The Content Quality Algorithm

The Update is an algorithm change first launched on the 24th February 2011 that was specifically designed to benefit high quality websites.  It did this by demoting low quality websites in the SERPS.

We believe the Update works by giving your website a score , and when the data is refreshed (which can be anywhere between a few months and in the case of the latest update over 10 months) your score is updated.  This means that webmasters hit by the algorithm can expect to wait a long time to recover even if they improve their website quality in a very short space of time.

Our view that the Panda Update works with a Site Quality Score is based upon this Patent granted in May 2015 (filed June 2012), which says:

This specification describes how a system can determine a score for a site, e.g., a web site or other collection of data resources, as seen by a search engine, that represents a measure of quality for the site.

The score is determined from quantities indicating user actions of seeking out and preferring particular sites and the resources found in particular sites.

A site quality score for a particular site can be determined by computing a ratio of a numerator that represents user interest in the site as reflected in user queries directed to the site and a denominator that represents user interest in the resources found in the site as responses to queries of all kinds.

The site quality score for a site can be used as a signal to rank resources, or to rank search results that identify resources, that are found in one site relative to resources found in another site.

The Content Quality Guidelines

Whilst you will find numerous articles around the web giving advice on what makes a website high quality, these mainly refer back to the initial advice given by Google in the following two articles:

  • More guidance on building high-quality sites (6th May 2011) – This article was published soon after the Panda Update was first launched in February 2011, aimed to give initial guidance on how to build high quality websites to avoid being caught by the algorithm.  It contains a number of questions to ask yourself to help determine whether your site is high quality.
  • Webmaster Guidelines (continually updated) – This should be your main “go to” resource.  You will find various links from this page giving advice for everything from “creating pages with little or no original content” to advice regarding affiliate programs.  Essentially, whenever you read a third-party article about an SEO topic we would recommend comparing it against the advice given by Google here, and then forming your own opinion based on multiple sources.

Ultimately, you may have to take a long hard look at your website.  You might need to combine multiple articles, delete others or simply de-index low quality content such as “tag” pages or extremely short \ duplicate content. It is also useful to revisit old content to see where it can be improved.

Google made this clear in the first article linked above stating:

That low-quality content on some parts of a website can impact the whole site’s rankings, and thus removing low quality pages, merging or improving the content of individual shallow pages into more useful pages, or moving low quality pages to a different domain could eventually help the rankings of your higher-quality content

How long will Panda Take to Roll Out

Google Panda has a history of rolling out over several weeks or months.  The last update (4.1) for example took around 8 weeks to complete, although prior updates were a little quicker than that.

John mueller slow rollout of panda

In a recent Google Webmaster Central Hangout John Mueller indicated that the roll out of Panda 4.2 would be slower because of technical reasons.  Gary Illyes previously mentioned that it was delayed for “technical reasons” when we asked him about the timing of the the update here, and it seems this phrase has stuck.

Whilst John Mueller indicated that there was a specific “internal issue”, he did not (and most likely won’t) elaborate further.  You can hear what he had to say here (the link takes you to the specific place in the Youtube video).

Here is a brief transcript of the relevant parts:

For technical reasons we are rolling it out a bit slower. It is not that we are trying to confuse people with this. It is really just for technical reasons.

John Mueller further went on to say that it is not that they are indexing \ crawling sites slower, but that it relates to how they are using the content to recognize the higher quality and lower quality sites.  That information is then being rolled out slower for “technical reasons”:

So, it is not that we are crawling slowly. We are crawling and indexing normal, and we are using that content as well to recognize higher quality and lower quality sites. But we are rolling out this information in a little bit more slower way. Mostly for technical reasons.


It is not like we are making this process slower by design, it is really an internal issue on our side.

The Rank Risk Index shows clearly that the roll out is ongoing, and that significant movements in the SERPs have already been seen:

Google panda 4.2 update

Who is Affected by Panda 4.2?

As we mentioned above, Gary Illyes at Google stated that about 2-3% of search queries will be affected by the latest update.  This is fairly significant, but significantly less that the 11.8% of queries affected by the first Update.

More recently,  Panda 4.0 (20 May 2014) and 4.1 (25 September 2014) affected 7.5% and 3-5% respectively.

Will Panda roll into the core algorithm?

There have been some interesting thoughts around the web that the slower roll out is due to Google incorporating some of the Panda signals in the core Google Algorithm.  This would allow a more seamless approach to content quality allowing the better content to more quickly rise to the top of the SERPS.

Glenn Gabe agrees with this.  He has noted that many of the more recent updates (such as this one) focusing on Content Quality are things that ought to have been caught by Panda:

I brought up the possibility that Phantom was actually the migration of Panda (or Panda factors) to Google’s real-time algorithm. It’s entirely possible this is the case.

I’ve analyzed many sites hit by Phantom 2 and every quality problem I surfaced would have been picked up by a thorough Panda audit.

We think this view has merit, and explains why many webmasters thought a Panda was rolling out in early May.  It will also mean that future updates may not be as severe as we are used to, and because Google will be able to determine better content quality in real-time (to some extent) it “should” improve the results in the SERPs for those constantly producing high quality content.

Final Thoughts

Whether you have been affected by the latest Update or not, we recommend that you continually evaluate the quality of the content on your site.  As spammers and black hat SEO’s adapt to the new environment it is inevitable that Google will look for more and more signals to seek out the higher quality content in the future and therefore it is wise to not wait until you are penalized before taken action.

After all, many webmasters have had to wait over 10 months to even have a chance at a recovery from Panda 4.1.


1 Comment
  1. Reply Jasvinder December 30, 2015 at 6:41 am

    Being a newbie, understanding these algorithm’s like Panda penguin is difficult for me, but I am trying hard to get it.

    What I have understand so far about Panda is, that I need to write good articles to get ranked, but I have question regarding this, Can I rewrite articles? Because finding unique ideas and writing full unique is difficult for me as it takes hours of time, so Can I get a reference and rewrite someone’s else articles?

    Will it be ok?


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