Everything You Should Know About A9 Algorithm

For the Amazon Sellers, where it is important for them to know how to rank their products, it is equally important for them to know about the Amazon algorithms. The latest Amazon’s A9 algorithm changes have declined many ranked listings.

Thus, it is of utmost importance to know what is the current algorithm and what are the functions of certain algorithms.

This article is going to unveil some hidden aspects of A9 algorithm and how its updates dropped many rankings.

What is A9 Algorithm?

It is Amazon’s search engine and searches advertising technology. It is called named A9 as there are 9 letters after the letter “A” in the word “Algorithm”. There is a division to maintain and make improvements to the search engine that is called the A9 Division.

This algorithm is quite sharp and complex at the same time which is going to be one of the main updates Amazon has done.

How A9 Algorithm Works?

There is an example showing the work process of the A9 algorithm. For instance, your search for a particular thing on Amazon and get limited results (like I searched for Surbex T Vitamins and got 2 results).

Process of A9 Algorithm

But when you add a particular word with it then it did not produce any result most probably due to spelling mistake of not having that search query in any product listing.

But the recent A9 algorithm changes have made it easier to still get the related results based on the search query. Now, using the previous example again, if you search for Surbex T Vitamins Abbott you still get results.

A9 Algorithm effects on products

In the past, if you – mistakenly – used a variation in the term, Amazon gave different search results. But over the last year, the algorithms are improved that they consider variations in the search queries.

So, when you do a slight variation in the term, you still will get the related results – if not the exact same results.

This is how A9 algorithm changes are smarter and it is working just precisely for your needs.

A9 is Just a Mirror of Google:

I’m sure you have fond of Google and entirely rely on this search engine only. Google alone has more than 70% market share in the world of search engines. Its algorithms are the most complex and seamless for ranking than any other search engine’s algorithm in the industry.

Conversely, Amazon has fewer ranking factors that are easier for engineers to comprehend. Hence, the platform does not really matters where you sell any product, but knowing A9 algorithm changes and working will surely help you increase your product ranking.

A9 Algorithm Changes:

Now, you have learned the nitty-gritty of A9 and how it works, it is important for you to know what its recent changes are and what it mainly targets while searching.

There are some factors that A9 looks at whenever a person hits the Search button and type any search query. These two signals are:

  1. On-Page Signals: Code and Content of a Listing
  2. Off-Page Signals: External Factors

On-page signals are entirely under your own control. Whereas, off-page signals are widely divided among consumers’ shopping history to the other competitors’ actions. You, on the same side, have your own part on a particular thing in off-page signals.

You can increase your product ranking by becoming proficient in these signals. There are some essentials steps for you to always have a good image whenever A9 algorithm changes.

  1. Step 1 – Pre-Optimization

To become a master in Amazon algorithms, you need to start first with the research. You need to search for the people’s behavior in the online marketplace, what is trendy, which seller is doing great, which product is higher in demand, etc.

You should start with these:

Competitors Analysis & Market Stats:

Before going further, ask yourself some questions:

  • What products are listed in the marketplace?
  • How you can target the marketplace with your product?
  • Is your product has the potential to rank in the shopping stats?
  • Why people should buy your product and how your offer is better than others?
  • Who are your main competitors?
  • What your competitors are doing for more sales?

Make a list of all these questions and add more which is relevant to your query. Once you know everything about the competition level, make yourself prepare to land in the market. Always keep this in mind that, tougher the market stats, difficult it would be to get rank.

Keyword Research:

It is vital to do thorough and deep keyword research for your product listing. If you get it wrong, you are more likely to land in the place of competition to get rank.

You need to know about people’s psyche before choosing a keyword. For instance, if you are going to sell hats and you type the search query “Hats”, you will get results hats for men, hats for women, sports hats, etc.

You need to create a list of main keywords relevant to your product having more searches and analyze this on a daily basis to not get kicked off by the people on another day.

  1. Step 2 – On-Page Optimization

Once you identify the potential products and relevant keywords, the next step to do the on-page to optimize your product. You can start with the following important things:

Product Listing Title:

The product title length is 200 character max. though it changes frequently. You need to use a catchy yet accurate product title and include the main keywords in it. Always be brief and informative so that your buyer would know what you are selling even before clicking on it.


You can include the primary and secondary keywords in the description written in bullet points. This not just looks good but easy to comprehend and quick to optimize.

Enhanced Brand Content:

It is unlikely that buyers always read full product description thus you need to elevate your listing by using Enhanced Brand Content (EBC). The good point in this is that you can add your keywords besides uploading more pictures or videos of your product.

Backend Search Terms:

In this section, you can use your long-tail keywords to optimize the product ranking. Start from the keyword with the highest volume and avoid duplicate terms. Try not to over-optimize the keywords as it might decline the product ranking.


Always add your product in as many categories as relevant to increase searches.

Benefit Driven Imagery:

Imagery is a good option to compel visitors. Use royalty-free HD images to attract more buyers. Thus, you can speak through the images.

  1. Step 3 – Monitoring

Never leave your product on its own even if you did everything to get it ranked. The amazon algorithms are frequently updated and increase or decrease rank based on the factors. You always monitor and track your keywords and product searches. There are multiple tools through which you can regularly monitor your listing.


It is always considered wise to work from all ends while knowing all odds. When you think the A9 algorithm changes as your friend, you start doing the product optimization wisely. Or else, bad product optimization will lower your product rank in any Amazon algorithm update.

Knowing about the A9 algorithm changes is always beneficial for your product ranking, driving more traffic, increase conversion rate, and of course, perpetual business growth.


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