Google Algorithm Update: Product Review Update December 2021

All Google Algorithm Update, History & Changes: A Complete History

Google algorithm refers to a complex system specially designed to bring data from the vast database of Google when searched as a query. This fetching of data takes place within seconds. There is an incredibly large number of web pages in the search index of Google that contain a wide variety of data and information. Google algorithms are meant to assist users in finding the desired information from a whole lot available on the web. Google arranges the search results for a query in different ranks as per their relevance, quality, and other factors. This ranking is also done with the aid of specialized algorithms.

Google Algorithms Update

To enhance its performance and improve user experience, Google introduces specific updates in its algorithms from time to time. With every update, there is some new feature added by Google that enhances its functionality and makes it more effective and efficient to cater to users’ needs. These updates have resulted in improving Google so much. Lately, the frequency of Google updates in algorithms has been paced up, which was relatively slow previously. Let’s have a look at the history of major Google algorithm updates.

What are Google Algorithms and How Do They Work?

The algorithms employed by Google to retrieve material from its search index and offer the best possible results for a query are a complex system. On its search engine results pages, the search engine uses a combination of algorithms and several ranking parameters to offer webpages rated by relevancy (SERPs). Google’s algorithms were only updated a few times in its early years. Every year, Google makes thousands of updates.

Product Review Update December 2021

Prior, in April, Google had dispatched an update to those websites that has shallow feedbacks that add no worth were by that update. A comparative effect was anticipated by the end of 2021.

In its second 2021 update for product reviews, Google has planned to help sites that proposal top to bottom reviews that assist clients with settling on an educated purchasing choice.

As per this giant search engine, they got criticism from the clients on what kind of content they see as helpful and dependable. Google will advance these top to bottom product reviews in its system of rankings.

If your website is offering product review content, you should check how your rankings have been affected as a result of the update.

It has been again noted that most users generally trust reviews that give proof of tried items and need numerous choices to purchase the item.

With the help of this new update, products will be reviewed as per their ratings and will be better compared to the template data accessible on the web.

Being this reason, Google has added this new review guidance for products. For the time being, this update is carried out for the English-language pages, which will require around three weeks.

The update’s focus is to guarantee that clients approach inside and out item audits, have unique exploration, and are composed of specialists.

For the long term, you really have to guarantee that you add more reviews into your items ratings content so it stands apart from the opposition.

However, this doesn’t mean that lower-quality reviews and ratings will be eliminated totally from the inquiry. The meagre substance that is like the item depiction will be downgraded from the primary page results.

The two new best practices that can be used for content are –

  1. Provide connections to numerous dealers, which will give your users the choice to buy from their preferred shipper.
  2. Add more media to your product ratings to help your skill and feature your genuineness.

November 2021 Core Update

Google rolled out its other broad core algorithm update in the month of November 2021.

This update doesn’t mean something is not good on your site. Assuming you see a drop in rankings that is only a sign that your substance might require an update. You just need to update the content prior to doing anything more. No need to get panic as there is nothing that can’t be reversed. Just make sure Black Hat SEO should not be implemented in your strategies.

Some renowned search engine gurus are calling it just like another update that focuses on ranking those sites that are providing everything good, from high-quality content to optimized stuff.

Despite the fact that the aftereffect of the update is by all accounts radical as consistently for a couple of sites, Google’s interpretation of it has continued as before.

In a Tweet by Danny Sullivan, SEOs ought to presumably stop the panic based manipulation about the broad core updates and attempt to console site proprietors about the positive side of it when they have their site follow the accepted procedures.

There was a reply to SEO Rich Messey’s tweet from John Mueller in regards to the circumstance of the November update where he said, “beneficial things go up with the update as well.”

Still, the update appears to have worked up discussions on different gatherings and conversation stages with stressed owners of sites, particularly the ones who were prepared for the Christmas season, calling it a major issue.

Are you wondering about the most ideal way to upgrade your site in order to protect from such rollouts?

Ask yourselves these questions regarding the content:

  1. Are you utilizing some pop-ups or advertisements inside the content which makes it difficult for the client to understand?
  2. Is it partnered to various different sites?
  3. Does it comply with the normal standards of style, language, and style?
  4. Is the content as opposed to scientifically proven information?
  5. Is your content safe for the general public and children?
  6. If the content goes under the YMYL class, was it composed by somebody with high qualifications in the field like a specialist or a monetary master?
  7. Are the titles inside the content applied to the point covered or would they say they are misdirecting?
  8. Is there something remarkable to your content that makes it stick out?
  9. Have you included genuine analysis or results?
  10. Does the page truly have content that is helpful for the clients?
  11. How much it is genuine?

November 2021 Spam Update

It has been affirmed by Google that the rollout of the November Spam Update has begun. It is similar to the core ones that this giant search engine planned to work on the nature of search results by getting rid of destinations that the calculations believe are malicious.

It has been announced on Twitter that “As a component of our standard work to further develop results, we’ve delivered a spam update. We urge site owners to follow our accepted procedures for Search. This update ought to be completely carried out within seven days.”

It will further take seven days to finish the rollout and it is expected that a couple of sites might see down positioning in ranking during and after the rollout of this new update.

Those sites that indulge in SEO practices that Google doesn’t allow might face a drop in rankings. Site owners that do White Hat SEO may not need to worry as this update can accomplish more great than hurt. All things considered, destinations that enjoy SEO rehearses that Google considers as malicious may confront a drop in rankings.

The Google Link Spam Algorithm has been updated. – July 26, 2021

Google said that it was starting to push out an algorithm update focused at detecting and eliminating link spam. Google has cautioned that sites that engage in link spam strategies may see their rankings affected, with sponsored, guest, and affiliate content being the most vulnerable. The upgrade will be fully disseminated out in “at least” two weeks, according to Google, and will affect numerous languages.

Core Update Completed – July 12, 2021

The July 2021 Core Update distribution was successfully completed on July 12th, according to Google Search Liaison. There were no other details supplied.

Core Update – July 1, 2021

The July 2021 Core Update is rolling out, according to Google Search Liaison, and will take one to two weeks to complete. The Google Search Central Blog contains Google’s instructions for core changes.

Spam Update Part 2 – June 28, 2021

Google Search Liaison said on Twitter that the second phase of their spam update would begin on June 28th and will most likely be completed that day. The original announcement related to a post on the Google Search Central Blog about how Google combated Search spam in 2020, which was updated in April 2021.

Spam Update June 2021 – June 23, 2021

Google’s Danny Sullivan revealed on Twitter that a spam-fighting algorithm change was being rolled out to search results. The upgrade was supposed to go live on the same day. Within a week, he said, a second spam upgrade would be released. Google did not specify who or what this upgrade was aimed against.

Page Experience Update – June 15, 2021

Google has begun pushing out its long-awaited Page Experience update. According to Google, sites should not expect major changes as a result of this update, and any unexpected decreases or spikes should be reduced by the progressive deployment procedure. By the end of August 2021, the implementation will be complete.

Known Victims Protection – June 10, 2021

Pandu Nayak, a Google Fellow and Vice President of Search, wrote an article for The Keyword blog on June 10. He talked about Google’s efforts to improve the algorithm so that sites that “use exploitative removals tactics” and “predatory practises” are demoted. He also provided a link for reporting internet harassment.

Broad Core Algorithm Update – June 2, 2021

Danny Sullivan, Google’s Search Liaison, stated on Twitter that a major core algorithm upgrade was going to be launched. Some anticipated changes weren’t ready for this update, according to Sullivan, so those elements will be sent out as part of a second, related broad core algorithm update expected for July.

Product Reviews Update – April 8, 2021

“Product reviews that provide in-depth research, rather than thin information that just summarises a variety of products,” according to the new search ranking algorithm update. Google also included nine things to think about while writing and publishing product reviews in their release.

Passage Ranking – February 10, 2021

Danny Sullivan, Google’s Public Liaison for Search, revealed on Twitter that Passage Ranking is now available in the United States for English-language inquiries. “This move doesn’t mean we’re indexing individual passages independently of pages,” Google says. We’re still indexing pages and ranking information about full pages. However, we may now use excerpts from pages as a ranking component as well…”

Dec 2020, Core Update

Google rolled out a core algorithm update in the month of Dec. In the calendar year, it is the third algo update.

May 2020, Core Update

Danny Sullivan of Google has tweeted that broad core algorithm update. They releases such updates several times per year. 

January 2020 – Featured Snippet Deduplication

In this update, webpages present in a featured snippet position will no longer be repeated in regular Page 1 organic listings. This update 100% affected search listing globally. 

January 2020 Core Update:

It was confirmed that this update for sure will effect the search results globally. It is not that update that will targets something particular like the speed update.

Bert (Worldwide)-2019:

Google again in its much awaited update which was rolled out worldwide included many globally recognized langugages. It was also announced that it was the biggest change in the last 5 years.


There was much hype created about the BERT launch (Bidirectional Encoder Representations from Transformers) update in 2019. Like Rankbrain, it is also a machine-learning algorithm for Natural Language Processing (NLP). By using the context of words in a sentence, BERT was able to figure out a query’s meaning. It is instead a huge step forward in improving the search result experience for users.


This update is said to be one of the state-of-the-art algorithm updates by Google. It is because it employed machine learning for handling queries. It improved and enhanced the search results by suggesting similar meaning words for the words it doesn’t know in the query. It helped Google understand the intention behind a search query and then suggest results accordingly.


Google’s mobile-friendly update, known as Mobbilegeddon, was launched on 21 April 2015. Its use was further extended as a ranking signal. It had its impact on almost every website but not more potent than Panda and Penguin. It classified pages as either mobile-friendly or not. There was no in-between. It enhanced the user experience to a new level.

Google Pigeon-2014:

The Google Pigeon update was launched on 24 July, 2014. It was intended to enhance local search results. The local businesses and Google Maps also saw its effects. It used user’s location to personalise search results for them based on their nearness from user’s location.


The Hummingbird was probably the most revolutionising update by Google launched in the fall of 2013. It provided the foundation for voice-search results, which is still a growing concept. It put emphasis on the entire query rather than just considering keyword and thus providing better search results.


The Payday update was launched by Google in 2013, aiming to target spammed sites and queries. It was later updated three more times to improve functionality. It compelled SEO professionals too may keen attention to Google’s webmaster guidelines while designing the content on their websites.

Exact Domain Match EDM update-2012:

Google launched the Exact Domain Match EDM update in 2012. This update was aimed to target exact match domain names. It also took into consideration the quality of content on the websites to evaluate the value of these kinds of poor-quality websites for the users. It was a compelling update to reduce black hat SEO tactics’ practice among SEO professionals.

Google Penguin-2012:

Google Penguin update was a webspam algorithm update that was launched in April 2012. It was established to target manipulative link building and link spam to enhance Search Engine Optimisation SEO. It was a useful update to cope with low-quality content. It provided more control to Google over Black Hat SEO practices. It analysed whether a website is trying to trick the search engine by giving fake backlinks. It discouraged this kind of tactics to improve ranking. It was further updated about five to six times by Google.

Panda Update-2011:

The Panda update, launched on 23 February 2011, is regarded as the first major and noticeable update in modern SEO. It worked to improve thin search result content and recognise websites that were purely created to rank in the search engines.With more focus on on-page factors, it analysed whether a website is providing any genuine value to the users or not. Affiliate sites and thin content sites were the main targets of the Panda update.

Caffeine (preview-2009) (rollout-2010):

The caffeine update, introduced in August 2009, was intended to make changes in the infrastructure.Its main purposes were enlarging the total index, incorporating ranking immediately and speeding up crawling. It was rolled out in June 2010 by Google.

Google Suggest-2008:

It was quite a notable update introduced in August 2008. As the name implies, this update enabled Google to suggest the expected searching when the user typed his query. It was also used to power Google Instant.

Supplemental Update-2006:

The supplemental update was designed and introduced for making supplemental index changes in November 2006. It transformed the way page filtering was handled previously. Although it seemed like a penalty, Google clarified that it was not a penalty.


Google unleashed the series of Jagger algorithm updates in October 2005.It targeted low-quality links. Low-quality links include paid links, link farms and reciprocal links.


It was first perceived as a false update. It was because Google announced that it had not introduced any significant update to the algorithm. However, changes were observed all over the board.


This update was announced in February 2005. The update’s key features were never revealed; however, as per the speculation, it had an impact on the sandbox. Some also thoughtan update took place in LSI, while others thought it was introduced to take action against hidden links.


Introduced in January 2005, Google, Microsoft and Yahoo implemented this update on the same time. It was introduced to aid in fighting against spam and to enhance outbound link quality. It also helped in cleaning up spammed blog comments.


This update came after a month of the previous update, Austin. The Brandy update put more emphasis on link neighbourhoods, latent semantic index and anchor text relevance. It also boosted keyword analysis and finding search terms’ synonyms with Latent Semantic Index LSI’s help.


The Austin update had a solution for the drawbacks of Florida. The main purpose remained the same, i.e. targeting websites employing unethical tactics to improve their ranking on Google algorithm. It included additional features of META-tag stuffing and invisible text.


The Florida update, introduced on 16 November 2003, has a significant place in Google algorithm updates. Its main purpose was to change ranking signals. It discouraged SEOs from employing black hat tactics. As a result of this update, many websites involved in using unethical tactics suffered, which discouraged others on the same path.Business owners showed their dislikes the most with this update coming into action.


With the introduction of Fritz in July 2003, the monthly Google Dance came to an end finally. Like Esmeralda, it was also implemented for making changes in the infrastructure of the Google Index. It ended monthly updates of the index and instead introduced daily index updates. It provided stability to search results with quick indexing and targeted websites using black hat SEO tactics and techniques like hidden links or hidden texts.


The second last update in the alphabetically ordered Google algorithm updates was the Esmeralda update in June 2003. It basically changed the infrastructure of the Google index. It replaced “Google Dance” with “The Everflux.” It implemented massive structural changes in Google.


Introduced in May2003, Dominic update had a massive impact on search results. As per speculation, this update’s main features were additional theme-based search results and backlinks reporting or counting.


Cassandra update took place in April 2003. It was also meant to change ranking signals. It enabled Google to target spammy websites that are involved in black hat SEO tactics, such as using backlinks. Hidden texts and links and backlinks from co-domains were the main targets of this update. It helped Google in coping with basic link-quality problems.



It was the first named Google algorithm update that took place in February 2003. It was announced at SES Boston and therefore named as Boston update. The main feature of this update was a change in ranking signals.From here started a series of updates in alphabetical order, starting from b to f.

Google toolbar-2000:

This web browser toolbar, known as Google toolbar, was introduced to the search engine in December 2000.Along with this,TBPR Toolbar Page Rank was also introduced, which gave rise to all these arguments about Search Engine Optimisation SEO.You can see this toolbar on the top of the Google’s tab bar. The main features of this update include website search, PageRank and automatic location of search terms. It was later updated around eight times to enhance its features, and the marketing experts of cheap assignment writing UK use this Google toolbar for SEO purposes.

Sonu Singh

Sonu Singh is an enthusiastic blogger & SEO expert at 4SEOHELP. He is digitally savvy and loves to learn new things about the world of digital technology. He loves challenges come in his way. He prefers to share useful information such as SEO, WordPress, Web Hosting, Affiliate Marketing etc. His provided knowledge helps the business people, developers, designers, and bloggers to stay ahead in the digital competition.

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One Comment

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