We all want to increase our Amazon ranking…

So it makes sense to understand how the Amazon Ranking Algorithm works – right?

Most sellers have no idea how Amazon delivers search results; let alone how (easily) exploitable it can be!

Well it turns out that THREE TIMES as many buyers search for products to buy on Amazon, rather than Google.

Think about it…

Where do you go when you need to know if a product is worth buying?


So, what if you knew how to rank on Amazon instead of google?

You’d have THREE TIMES more ready-to-buy customers than you’d EVER get in Google – and you’d do it in a fraction of the time!

Lets begin:

Here's What We're Covering:

Introducing A9: Amazon’s Ranking Algorithm


As we can see here, much of the work is done before the customer even touches the keyboard. Once the customer actually hits “Enter” to perform a search, the A9 ranking algorithm delivers results through a two-step process:


It’s a pretty simple process at its core:

  1. First, they pull the relevant results from their massive “catalog” of product listings.
  2. Then, they sort those results into an order that is “most relevant” to the user.

Now, some of you SEOs out there might be thinking, “Wait a second… Isn’t relevancy Google’s turf? I thought Amazon only cared about conversions! What’s all this focus on relevance doing here?”

The answer is simple: Relevance doesn’t mean the same thing to Amazon that it does to Google. Read this statement from A9 carefully to see if you can catch the difference:


See that?

  • Google says, “What results most accurately answer the searcher’s query?”
  • Amazon says, “What products are the searcher most likely to buy?”

The difference between those two questions is the difference between how Amazon measures relevancy compared to Google.

Ranking on Amazon is easier than ranking on google because you’re essentially cutting the work in half. A complete SEO plan only uses internal factors to determine how a product ranks. Backlinks, social media, domain authority… These are all things you don’t need to worry about with Amazon SEO.

Keep these 3 rules in mind:

  1. Amazon’s top goal in everything they do is always maximize Revenue Per Customer (RPC)
  2. Amazon tracks every action that a someone takes on Amazon, right down to where their mouse hovers on the page
  3. The A9 algorithm exists to connect the data tracked in #2 to the goal stated in #1

So far, so good?

What Influences the A9 Amazon Ranking Algorithm?

Conversion Rate* – These are ranking factors that Amazon found to have a statistically relevant effect on conversion rates. Examples of conversion rate factors include customer reviews, meeting the Amazon image requirements and pricing.

Relevancy – Remember the first step in the A9 Amazon Ranking algorithm? They gather the results, and then they decide how to list them. Relevancy factors tell A9 when to consider your product page for a given search term. Relevancy factors include your title and product description.

Customer Satisfaction – How do you make the most money from a single customer? Make them so happy that they keep coming back. Amazon knows that the secret to max RPC lies in customer retention. It’s a lot harder to get someone to spend $100 once than $10 ten times. Customer Retention ranking factors include seller feedback and Order Defect Rate.


Note : 

Amazon uses both predicted and real conversion rates for product rankings. For example, if your product is priced higher than other similar products, Amazon will predict a lower conversion rate for your listing and use that rate until real data corrects it.

Okay! We’re finally ready to start talking about how to rank on Amazon. What you’ll find below are 25 Amazon ranking factors that either Amazon themselves or independent marketers have confirmed the A9 algorithm to use.

If you’re looking for a complete Amazon training created specifically for people that want to start an Amazon business from scratch, we’ve just finished updating our new course for 2020. You can check it all out here.

Top 25 Amazon Ranking Factors

Amazon isn’t like Google where they go to great lengths to hide the factors that they use in their algorithm. Inside Amazon’s Seller Central, they’ll blatantly tell you several of their top ranking factors. You can also visit the official Amazon Seller Support Blog for some great insights. And here’s the UK Seller Support Blog if you’re interested.

Conversion Rate Ranking Factors

1. Sales Rank

After just a couple searches on Amazon, it should be pretty obvious that the number of sales compared to other similar products – otherwise known as Sales Rank – is one of the most important rankings factors.

Even now Amazon is testing a new feature in their search results where they automatically append a #1 Best-Seller banner (see below) to the best-selling product in category-specific searches, like this one for “Strollers”:


It’s simple really…

More sales mean higher Amazon rankings – and higher Amazon rankings mean more sales!

It sounds like a vicious cycle, but luckily there are still many ways for new sellers to compete. If you have a problem with Amazon hijackers stealing sales make sure you know how to protect yourself first!

2. Customer Reviews

It probably doesn’t need to be said that the number and positive-ness of your reviews (which we cover how to get customer reviews here) is one of the most important ranking factors in the Amazon Ranking A9 algorithm. How you respond to your reviews is huge as well.

This example product search for the keyword “vacuum” illustrates some interesting points about how Amazon weights review volume vs. review quality:


Let’s dissect this search results page:

  1. The BISSEL vacuum (green) has the most reviews AND the highest review rating. It’s also the best-seller in its category, so it ranks at the top.
  2. The second-ranked Dirt Devil (red) has more reviews, but a lower review rating. It’s also a best-seller, so it ranks second.
  3. The third-ranked Shark Navigator (blue) has less reviews, but a higher rating than #2, and it’s also a best-seller, so it ranks #3.
  4. The Hoover WindTunnel at #4 has substantially more reviews than any of the top three listings, but it’s not as highly rated as #1 and #3, and it’s not a best-seller, so it ranks #4.

3. Answered Questions

This is one of those metrics that Amazon doesn’t specifically state they track. But, it’s data they have access to and Q&A’s are listed close to the top of the product page, which typically means it’s important for conversions.

Furthermore, products like this (me-approved) Philips Sonicare electric toothbrush, which ranks #1 for the keyword “electric toothbrush” over other equally rated best-sellers because it has almost twice as many customer Q&As than any other listing in the category:


4. Image Size & Quality

Amazon continues to tighten its image size and quality policies for product listings. Right now, some categories won’t even display results that don’t have at least one image that is 1000×1000 pixels or larger. These are called “suppressed listings”.

The 1000×1000 pixel image size allows Amazon to offer customers their Hover-to-Zoom feature, shown below, which they’ve found has a dramatic effect on conversion rates.


Awful artistry aside, you can see that as my cursor hovers over the image, Amazon automatically displays a zoomed-in version in the product information pane.

Notice that image quantity is not what’s important here. This Tippmann paintball gun is the #1 product for the keyword “paintball guns”, but it only has one image. Since the image is big enough and informative enough to give the customer all the info they need, that’s all it takes to make Amazon happy.

You can rank better if you have one large, high-quality image than having multiple normal-sized images. Not to say that multiple images won’t convert better than one image, just that the benefits quickly taper off after the first. You can try the DIY route to high quality product photography.

5. Price

Remember earlier when we talked about how the Amazon ranking algorithm uses both predicted and real conversion rates to determine which products to show in their search results?

One of the biggest ranking factors Amazon uses to determine predicted conversion rate is pricing – they know that customers tend to seek the best deals. More importantly, Amazon uses pricing as a major factor in picking which product to show in the buy box, which is the part of the page containing the Add to Cart button (we’ll talk more about that later).


Notice here that the top-ranking product for the search term “juicer” has less customer reviews, lower customer rating and lower Sales Rank than every other listing in the top 4. It still shows #1 because it’s got decent ratings and is priced waaaaay below the category average.

Note that reviews are still vital here. And pricing isn’t the only reason that the Black & Decker Juicer ranks #1…

6. Parent-Child Products

If you have a product listing (parent) and decide to offer color or size variation those are known as (child listings). They appear on the same listing as variations.  It’s much better to use Amazon’s built-in parent-child product functionality to direct all customers to a single product page.

This has several benefits:

  • It maximizes your customer reviews, since Amazon will combine your similar products into a single primary product page
  • It makes the most sense from a UX standpoint; keeping customers on the same page makes it more likely they’ll buy your product
  • Amazon has shown a preference for ranking products with multiple options in their listing

Let’s look at that top-ranking Black & Decker Juicer again:


If you scroll back up the page, you’ll see that this juicer is the only one in the top 4 results to utilize parent-child product connections. When you enable the parent-child relationship, it shows as an extra option in Amazon’s search results…

This not only increases click-through rates, we can see here that it also helps you rank above the competition!

7. Time on Page & Bounce Rate

Remember, Amazon can measure every way a customer interacts with their website, so it’s easy for them to track detailed time on page and bounce rate stats.

Here’s exactly what these similar-but-different metrics mean on Amazon:

Time on Page: Amazon believes that the amount of time a customer spends on your listing page is a good measure of how interested they are in your product. A customer who reads your full product description, looks through reviews and investigates the Q&A’s is much more likely to buy than the one that spends a couple seconds skimming the features.

Bounce Rate: A “bounce” is when a customer performs a search, visits your page, and then either goes back to the search results or clicks on a Related Product offer. Keep in mind that Amazon has a much more exact measurement of bounce rate than Google, again, because all user activity happens within their platform.

8. Product Listing Completeness

Finally, the last conversion metric to optimize for is listing completeness. The individual sections of the product listing mostly have to do with relevancy, as you’ll learn below, but the actual completeness of the listing has an effect on conversion rate.

The Definitive (2018) Guide to Amazon Product Listing Optimization

As a general rule, the more complete you make your listing, the better. Do your best to fill in every single field in the listing setup page to maximize your chances of appearing at the top of product search results.

Relevancy Ranking Factors

9. Title

In Google, you want a concise, engaging title with your keyword close to the beginning.

In Amazon, all you care about is keywords. You want to cram as many keywords into about 80 characters as you possibly can.

In fact, you can actually go beyond 80 characters if you want, and it’s better to have too many keywords than too few. I’ve seen top-listed products with titles that make no sense and have over 200 characters, like this top-rated “Nexus charger”:


It should be noted that Amazon is starting to crack down and standardize Product Titles – keep an eye out for this moving forward…

10. Features / Bullet Points

The other big reason that particular Nexus charger ranks so highly is because it has lots of keyword rich, informative features. Features, which are displayed as bullet points right below the pricing and product options, are an absolute must.

Just like with images, features are so important that Amazon no longer allows products without bullet points to be featured in the buy box, and not having them is a serious road-block to good Amazon rankings.

Another good example of proper Feature usage is this Asus computer monitor, which ranks #1 for “computer screen”:


Notice how the bullet-points are both extremely detailed and include a ton of keywords? At the same time, they’re easily readable, which means they won’t confuse customers and risk hurting conversions.

11. Product Description

Your product description is basically where you expand on your Features. It’s also the part of the page you have the most control over. If there’s anywhere to really put a lot of effort into engagement, it’s in the product description.

That being said, keep in mind that unlike with Google there is no benefit to having a keyword appear multiple times on the product page; if it’s anywhere in your product listing at least once, you will be relevant to rank for it.

If you want to see a truly appetizing product description, check out the one for this DeLhongi Espresso Maker – the #1 ranked listing for the term “espresso maker”.


There’s nothing advanced about this product listing – they just covered all the bases. It’s thorough, inviting, easy to skim, includes plenty of images, captions, and they even included extra tech. specs that aren’t listed in the normal Specifications section (which we’ll talk more about below).

12. Brand & Manufacturer Part #

Remember earlier when we looked at the top results for the keyword “Juicer”? You can refresh your memory below:


Something that every single one of the top listings do right in that category is list the brand and manufacturer number first in the product title. In fact, if you do the search yourself it’s not until the 15th result that Amazon shows us a product listing without the brand and manufacturer number included in the title.

You always, always, always want to include a brand in your title because it enables your product for search filters AND allows you to capture customers searching for a specific brand. And if you’re in a niche where customers are using the manufacturer number to search for products, you definitely want to include that keyword in your title.

13. Specifications

These are different than Features – this is the part of the page where you actually list the technical and physical details of your product. This includes size, shipping weight, color, publication date (if you’re doing books), tech. specs and more. You can see this top-ranked product for the “home theater system” search term using their product specifications to the max:


14. Category & Sub-Category

You probably didn’t realize this, but once a customer has entered into a category – every other search they perform on Amazon will, by default, be limited to that category.

Take a look at the example below:


You can see here that a simple search for “dog food” actually takes us three categories deep into Amazon’s product catalog, indicated by the red lines in the image above. The blue box shows that we’ll stay in the Dog Food category until we either return to the home page or manually tell Amazon to show us All Departments.

When setting up your product listing, make sure you put your product in the most relevant, narrow category possible.

15. Search Terms

In addition to categories, you can also specify search terms that you want associated with your product.

Even though Amazon lists five different 50-character search term fields, you’re better off thinking about it as one big 250 character text box in which you can enter every possible search term you can think of for your product.

This is somewhat complicated to explain, check out this incredible Amazon listing SEO article focusing on what’s going to happen in 2018! So just head over there if you want to learn more about this specific factor.

16. Source Keyword

This is one of the biggest hidden ways that Amazon determines a listing’s relevance to a given product search. This is also yet another example of how Amazon tracks every single minutia of a customer’s activity on their website.  Take a look at this URL that links to a listing for a Black & Decker electric drill, and see if you can tell me what search term I used to find it:


You can see the source keyword right at the end of the URL – &keywords=electric+drill – that tells Amazon that the source keyword was “electric drill”.

Therefore, if I were to buy this drill, Amazon would know that this listing is highly relevant for the term “electric drill”. The next time a customer searches for that term, this listing would be more likely to rank higher at the top.

Here’s a neat little Amazon ranking hack (we cover in this article) you can do to take advantage of this factor:

  1. Construct a URL for your product listing using the [&keyword=your+keyword] query (append the code inside the brackets to your product URL).
  2. Use a link shortening service like bit.ly to create a shareable link to that URL.
  3. Drive traffic to the shortened link.

Now anytime you make a sale from one of these shortened keyword links, you’re basically tricking Amazon into thinking that these visitors performed a product search for your target keyword.

If you want an in-depth look at the perfect way to make your listing perfectly relevant check out the post below!
Amazon Keywords: 4 Tips for Perfectly Optimized Product Listings

Customer Satisfaction Ranking Factors

17. Negative Seller Feedback

Why do I list negative seller feedback specifically, as opposed to just seller feedback in general?

Interestingly, Amazon actually claims not to track positive seller feedback; at least, not for the sake of their product ranking algorithm.

Instead they track negative seller feedback rates, or frequency. It doesn’t matter how bad the feedback is – all negative feedback is the same, and it all counts against you equally in terms of search result rankings.

To be clear – as a third-party seller attempting to win the buy box (shown below) you want your seller feedback as high as possible. However, negative feedback rate is the only metric with a known effect on product search results.


18. Order Processing Speed

Amazon knows that one of the best ways to make customers happy is with fast and accurate shipping. Therefore, a vendor or seller who has shown consistent and efficient order processing is more likely to rank higher than a vendor who’s had complaints of inaccurate or slow shipping.

19. In-Stock Rate

Customers hate it when they want a product but can’t have it. One of the most common ways this problem occurs is when an item is out of stock, or when a seller doesn’t keep proper track of their inventory.

Whether you’re a first-party vendor or a third-party seller, keeping your inventory in stock is vital to maintaining top rankings, both in A9’s product search results and in your product’s buy box.

Two of the big customer satisfaction metrics are Percentage of Orders Refunded and Pre-Fulfillment Cancellation. In both cases, Amazon has found that vendors/sellers with low in-stock rates tend to have higher refunds and cancellations, which of course is bad for customer retention.

20. Perfect Order Percentage (POP)

POP is a measurement of how many orders go perfectly smoothly from the time that a customer clicks “Add to Cart” to the product arriving at their home.

If you have a high Perfect Order Percentage, that means you have a high in-stock rate, accurate product listings and prompt shipping. That’s exactly what Amazon wants for each and every one of their customers, so they’ll naturally rank high-POP sellers above lower-POP ones.

21. Order Defect Rate (ODR)

ODR is basically the opposite metric of POP.

Every time a customer makes a claim with an order, that’s considered an order defect. Here are some of the most ways an order can defect:

  • Negative buyer feedback
  • A-to-Z Guarantee claim
  • Any kind of shipment problem
  • Credit card charge back

Each of those examples by itself would count towards your Order Defect Rate, which is the number of order defects compared to the total number of orders fulfilled over a given period of time. Amazon says that all sellers should aim for an ODR under 1%.

Important! Buyer-removed negative feedback does not count towards your ODR. So, it really pays to address each and every one of your customers’ issues.

22. Exit Rate

How often does a customer view your listing and then exit Amazon.com? That’s your exit rate.

If your page has an above average exit rate, Amazon takes that as a sign that you have a low-quality listing. Usually a high exit rate is because your product has a low in-stock rate, or because your listing isn’t fully complete.

23. Packaging Options

This is a metric that I didn’t used to think Amazon used for ranking purposes, but recently I’ve been seeing stuff like this in product search results:


Clearly packaging options are something that Amazon has found their customers care about. But, even if it weren’t, it’s a great way to separate your listing from other similar products (and rank higher through an increased conversion rate).

An easy way to do this – seen in the example above – is to use Fulfillment by Amazon to offer Frustration Free Packaging. This is where Amazon uses less packaging and fully recyclable materials without sacrificing product protection. You can read more about it here.

(If you want ALL the strategies on the go then…Download This Post as a PDF “How To Rank Your Products On Amazon – The Ultimate Guide”)

This post is getting dangerously close to 4,000 words, so I know that a lot of you probably won’t read it all.

That’s okay – I’ll forgive you with time 🙂 We did a post of quick Amazon Ranking Hacks for new sellers 🙂

Wrapping This Up...

Key takeaways from The Ultimate Guide to Ranking Products on Amazon:

  • Maximum RPC (Revenue Per Customer) is Amazon’s top goal.
  • The Amazon Ranking algorithm uses conversion rate, relevance and customer satisfaction to rank products.
  • Fill out as much of your product listing page as possible, using as many keywords as possible.
  • Use FBA (Fulfillment by Amazon) to automate customer satisfaction.
  • Find ways to encourage customer reviews, and do everything you can to keep your customers happy.
  • Above all: More sales = higher rankings = more sales

There you have it! You now know exactly what ranking Amazon is looking at to make sure their customers are happy. All that’s left is for you to go out there and capitalize on your superior knowledge!

Whether you’re starting on Amazon with private label or creating your own products in China you can rank your products with this guide!
Other Amazon sellers are starting 2019 selling via retail arbitrage. So whatever your choice just take action.

In the meantime, do you have any additional questions about ranking products on Amazon? Do you need me to clarify something I didn’t explain well enough?

Let me know in the comments below, I’ll be responding to every last one 🙂

Here are some additional resources for you:

Easily Purchase UPC Codes for Amazon
3 Amazon Research Tactics Working in 2019
Quick Guide to Figure Out What to Sell on Amazon

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Avatar for Will Mitchell
Will Mitchell

Will Mitchell is a serial entrepreneur and Founder of StartupBros. You can learn more about him at the Startupbros about page. If you have any questions or comments for him, just send an email or leave a comment!

  • Avatar for Tom Buckland Tom Buckland says:

    Everyone who runs an online business with Amazon wants to ensure that they are getting high ranking since this will help increase the conversion much better. This article is such an excellent help to individuals who are having challenges with their ranking

  • Avatar for Annie Seberson Annie Seberson says:

    Great info. Thank you!

  • Avatar for Kim cushing Kim cushing says:

    Fantastic information, just read all of it, so hopefully I will be successful

  • Avatar for noman syed noman syed says:

    fascinating information. literally i have read from top to bottom and now hope i’ll be ranking at the top. thanks

  • Avatar for Tom Buckland Tom Buckland says:

    When ranking products on Amazon, remember:
    Amazon is interested in making the most money from sellers as possible.

    In order to be successful selling on Amazon, you need to know how their search algorithm works. The A9 algorithm is looking to meet 3 criteria to rank products on Amazon: visibility, relevancy and conversions. The A9 algorithm lists the results from their library and pulls out the most relevant results. Relevancy matters to A9 because it decides whether it should display your product when a search query is entered. Your product name and description is the key to relevancy.

    Make sure your product is categorised as precisely as possible. This will lead to it showing up in more subcategories. And out of the three factors that A9 is looking for, this meets the visibility criteria.

    Product image is also one factor that should be considered, who would buy a product that looked rubbish? I know I wouldn’t! I share the same opinion as the millions of potential customers out there. The pictures must clearly show the product in full. I would recommend that you use a picture that is 1000×1000 pixels in size. This is because it allows a user to zoom in by hovering their mouse over it.

    These are only few of the many techniques that can be done to make sure the product posted will rank highly in Amazon.

  • I Need a experienced product promoter ?

  • Avatar for Chris Chris says:

    Great article! thanks for the insight, helped a lot!

  • Very useful information. Trying to get our products noticed online is a huge hurdle, but also very exciting. Going to follow your steps.