How to rank for keywords on Amazon comes down to two tests. First, Amazon has to index your listing for the phrase, which only happens when its words appear in a field Amazon reads: the title, Item Highlights, bullets, backend search terms or attributes. Then the listing has to earn a position, and that depends on what shoppers who type the phrase do next: click, buy, and keep the product.
Amazon doesn't publish its ranking formula. Its own seller guide does name the levers: keyword research, titles, descriptions, bullets, backend search terms, images and price, plus listing quality and account health. One of those levers changed this summer. Since July 27, 2026, titles in every category except media are capped at 75 characters, so the old habit of packing a dozen phrases into the title no longer works.
This guide is for sellers and agencies with a live listing that should rank for a specific phrase and doesn't. It covers how the Amazon ranking algorithm works, seven steps in order, a worked example with real Amazon search volumes, and what to check when a rank drops.
Key Takeaways (TL;DR)
- Ranking has two stages: indexing decides whether your listing can appear for a phrase, and performance decides where.
- A listing only ranks for a phrase whose words sit in a field Amazon indexes. Search Amazon for your ASIN plus the phrase to check.
- Titles are capped at 75 characters in most categories since July 27, 2026, and Item Highlights adds 125 searchable characters below the title.
- Choose target keywords on relevance first and volume second. A phrase that describes a different product brings clicks that don't turn into sales.
- Once indexed, clicks, sales, price, stock and reviews set your position.
- "A10" is a label sellers use. Amazon hasn't published an algorithm by that name.
- Rank is per keyword and per marketplace, so a listing on page one of amazon.com can be missing on amazon.de.
How to Rank for Keywords on Amazon: at a Glance
Each step below depends on the one before it. A listing that isn't indexed for a phrase can't rank for it however well it converts, and a listing that's indexed but never sells for the phrase stays buried.
| Step | What Amazon looks at | What you change | How to check it |
|---|---|---|---|
| 1. Pick the keyword | Whether shoppers search it | Your target list | Amazon search volume, autocomplete |
| 2. Place it | Words in indexed fields | Title, Item Highlights, bullets, backend, attributes | Field-by-field limits |
| 3. Confirm indexing | Whether your ASIN matches the phrase | Missing words | Search your ASIN plus the phrase |
| 4. Win the click and sale | How shoppers respond in results | Main image, title, price, reviews, A+ | Search Query Performance (Brand Registry) |
| 5. Stay available | Stock, delivery speed, price | Inventory, fulfillment, pricing | Seller Central inventory and pricing |
| 6. Add traffic | Sales on the phrase | Sponsored Products targeting | Search term report |
| 7. Track | Position over time | Whatever slipped | Position checks per keyword and marketplace |
How the Amazon Ranking Algorithm Decides Who Ranks
Most sellers call the Amazon ranking algorithm A9, after A9.com, the Amazon subsidiary in Palo Alto that worked on product search. In a 2016 talk, Amazon Search scientist Daria Sorokina explained that the engine had moved from a few hand-tuned ranking functions to machine-learned models that rank products within categories and blend those rankings for All Products searches.
That detail matters for sellers in one practical way. There's no single score to max out. Different categories are ranked by different models, so a tactic that lifted a kitchen product may do nothing for a phone case. What holds across categories is the order of operations: relevance first, then performance.
Indexing: can your listing appear at all?
Before Amazon ranks anything, it decides which products match the query. That match comes from the words in your listing and its structured data. If a shopper types "macaron baking mat" and neither "macaron" nor "baking mat" appears in a field Amazon indexes, your product isn't in the pool, and no amount of sales on other phrases changes that.
Amazon's guide describes backend keywords as words that stay hidden from customers but still help a product rank for specific searches. The same logic applies to every indexed field. Placement decides eligibility; it doesn't decide position.
Performance: where does it appear?
Among the products that match, Amazon orders results by how well each one serves shoppers for that query. Amazon's seller guide names several inputs directly: Best Sellers Rank reflects real-time sales, Sponsored Products can help offers rise in results, and adjusting your list price to stay competitive can improve product ranking.
The guide also warns that keyword stuffing can hurt your rankings. Repeating a phrase five times doesn't make the listing more relevant. It makes the copy worse to read, which costs clicks and sales, the signals that decide position.
COSMO and Alexa for Shopping: relevance beyond exact words
Amazon is also teaching search to read intent. Its researchers published COSMO at SIGMOD 2024, a system that mines commonsense knowledge from shopping behavior and was deployed in Amazon search. The idea: a search for "shoes for pregnant women" should surface slip-resistant shoes even when the listing never uses the word "pregnant".
Amazon's AI shopping assistant, launched as Rufus, was renamed Alexa for Shopping on May 13, 2026. Amazon says it draws on the product catalog, customer reviews, community Q&As and the web to answer shopper questions. For a listing, that means stating facts plainly: who the product is for, what it fits, what it's made of. A bullet that says "fits 13 x 18 inch half sheet pans" answers a question; "premium quality you'll love" answers none.
Amazon SEO Ranking's audit scores this directly. Two of its 12 criteria cover AI-Readiness for Rufus (now Alexa for Shopping) and COSMO, so you can see whether your listing states the facts these systems look for.
What about the "A10" algorithm?
You'll see "A10" in many seller guides. Amazon hasn't announced or documented an algorithm by that name. Sellers use it as shorthand for changes they've noticed since A9, usually a heavier weight on sales from outside traffic and on conversion.
Treat any specific "A10 ranking factor" list with care unless it cites Amazon. The levers Amazon itself names are the ones in the steps below, and they work whatever the system is called.
How to Rank for Keywords on Amazon in 7 Steps
The steps run in order for a reason: each fixes a problem that would make the next one pointless. Most guides on how to rank keywords on Amazon stop at the title, and that's step two of seven.
Step 1: Choose a keyword your product can convert on
Start with a list of phrases shoppers type, then cut it down. Amazon's own suggestions are free: type your product into the search bar and note the autocomplete phrases. Brand-registered sellers also get the Search Query Performance and Top Search Terms dashboards in Brand Analytics.
Sort candidates by relevance first, volume second. "Baking" gets about 58,830 Amazon searches a month in the US, and almost none of those shoppers want a silicone mat. "Silicone baking mat" gets about 6,245, and every one of them does. Amazon SEO Ranking's Keyword ideas tool expands a seed phrase into related Amazon searches and grades each one Close match, Related or All, so off-topic terms drop out before you start. Our guide to the Amazon keyword generator workflow covers that process in detail.
Pick one main keyword per listing and a short list of secondary ones. The main keyword goes early in the title; the others get spread across the remaining fields.
Step 2: Put the keyword where Amazon indexes it
Each field has its own limit, and the title lost most of its room this summer. Amazon posted the change in Seller Central on June 10, 2026, and titles in all categories except media must now be 75 characters or fewer, spaces included. The lost space moved to Item Highlights, which shows under the title.
| Field | Limit | What goes there |
|---|---|---|
| Title | 75 characters | Brand, main keyword, one key attribute |
| Item Highlights | 125 characters | Secondary keywords: use, size, compatibility |
| Bullet points | 5 bullets, up to 255 characters each (200 shows in full on mobile) | Benefits, with secondary and long-tail phrases |
| Description | 2,000 characters | Detail, care, what's in the box |
| Backend search terms | Under 250 bytes in most marketplaces | Synonyms, spelling variants, other-language terms |
| Attributes | Dropdown values | Material, size, intended use, audience |
Amazon has been rewriting non-compliant titles with its own recommendations since July 27, and listings stay live while that happens. If your title is still over 75 characters, Amazon may choose which of your keywords survive. The free Amazon character limit checker shows where each field gets cut before you save. For which phrase belongs in which field, see our map of keywords for Amazon listing fields.
If you rewrite with the AI Amazon listing generator, set your main and secondary keywords first. A coverage check shows which field each one landed in, and you can score the new copy as a draft audit before it goes live, against the live listing's images, rating and Prime status. That's the step that keeps Amazon from rewriting the title for you.
Step 3: Confirm the listing is indexed
Search Amazon for your ASIN followed by the phrase, for example B0XXXXXXXX silicone baking mat. If your product appears, Amazon has indexed it for those words. If the results come back empty, a word is missing or the field it's in hasn't been read.
Run this test for the main keyword and each secondary one after every edit, then again a few days later. It costs nothing and works in every marketplace. Our guide to checking Amazon backend search terms covers the backend side of this test, including the byte limit that makes Amazon ignore the whole field when you go over.
Step 4: Make the click and the sale easy
Once you're indexed, the search results page is where you compete. A shopper sees your main image, the title, the price, the star rating and delivery date before anything else. Amazon's guide recommends images on a plain white background with the product filling 85% or more of the frame, shot from several angles.
On the product page, the bullets and A+ Content do the selling. Write bullets that answer the questions a buyer would ask in the store, and check that every claim matches the product: an "8-count" title next to a "20 packets" bullet creates returns and bad reviews, which feed back into rank. Every Amazon SEO Ranking audit flags pack-count mismatches and unsupported claims like that for free, and the AI Vision Image Audit on Pro checks the gallery itself: main-image compliance, unreadable infographic text, missing lifestyle or scale shots. Brand-registered sellers can also test two versions of a title or image with Manage Your Experiments.
Step 5: Keep stock and price competitive
A listing that runs out of stock stops selling, and a listing that stops selling loses the sales history that held its position. Plan inventory around your ranking push, since the extra sales you're trying to earn need units behind them.
Price matters in the same way. Amazon says adjusting your list price to stay competitive can improve your product ranking. Look at the price range of the products on page one for your keyword. If you sit well above it, the click and the sale get harder however good the listing is.
Step 6: Send sales through the keyword with Sponsored Products
A new or low-ranked listing has a chicken-and-egg problem: it needs sales on the phrase to rank, and it needs to rank to get sales. Sponsored Products targeting the phrase puts the listing in front of those shoppers while organic rank catches up, and Amazon's guide lists cost-per-click ads as a way to help offers rise through search results.
Use exact match on your main keyword so the spend lands on the phrase you want to rank for. Then read the search term report: queries that convert through ads are strong candidates for your title, Item Highlights or backend field.
Step 7: Track rank and repeat for each marketplace
Rank moves, so check it on a schedule rather than once. Note the position for your main keyword and each secondary one, and what changed in the listing each time the position moved. Without that log, you can't tell which edit helped.
In the US, Egypt, Saudi Arabia and the UAE, Amazon SEO Ranking's What I rank for (Pro) lists every keyword an ASIN ranks for with its position, so each check is one lookup you repeat after each edit. In other marketplaces, use the ASIN plus phrase search from step 3 and record what you find.
Repeat the process in every marketplace you sell in. Each storefront has its own listing copy, its own backend field and its own shoppers, and a title written for amazon.com matches almost nothing German shoppers type on amazon.de.
Worked Example: Ranking a Silicone Baking Mat
Take a fictional listing: Larkfield Silicone Baking Mat, Set of 2. The seller wants to rank for "silicone baking mat" in the US. We pulled US search volumes from Amazon SEO Ranking's keyword tools and ran the copy through its listing copy check, including the AI compliance scan on Pro, on 21 October 2026.
The listing went live with this title, written for the old 200-character limit:
Larkfield Silicone Baking Mat Set of 2 BEST Non Stick Baking Mats for Cookie Sheet, Macaron Baking Mat, Pastry Mat, Silicone Baking Sheet Liner Half Sheet Reusable Food Safe
| Problem | Detail | Why it hurts rank |
|---|---|---|
| Title length | 173 characters against a 75 limit | Amazon may replace it with its own version |
| ALL CAPS claim | "BEST" (AI scan: medium severity) | Banned formatting and an unsupported superlative |
| Backend claim | "#1 best seller" (AI scan: low) | A ranking claim the listing doesn't hold |
| Competitor brand | "silpat" in the backend (AI scan: low) | Trademark risk, and traffic from shoppers who want that brand |
| Repeats | "silicone", "baking", "mat" appear several times | Bytes and characters spent on words already indexed |
"Silpat baking mat" gets about 1,458 US searches a month, which is why sellers are tempted to target it. It's another company's brand, and the AI scan flagged it every time it appeared, including in a draft rewrite that used "silpat alternative" in the backend.
The rewrite keeps the main keyword at the front and moves secondary phrases to Item Highlights and the backend:
- Title (67 characters): Larkfield Silicone Baking Mat, Set of 2, Non Stick Half Sheet Liner
- Item Highlights (89 characters): Reusable pastry mat for cookies, macarons and roasting, fits 13 x 18 inch half sheet pans
- Backend (85 bytes): rolling dough fondant kneading oven tray cover bakeware parchment replacement biscuit
All three fields pass their limits, with no flags from the AI scan. The backend line holds no word that the title or Item Highlights already covers, which leaves about 164 bytes for later research. Together, the fields cover these searches:
| Search phrase | Est. monthly US searches | Covered by |
|---|---|---|
| silicone baking mat | ≈6,245 | Title |
| pastry mat | ≈1,271 | Item Highlights |
| silicone baking mats | ≈972 | Title |
| baking mat | ≈972 | Title |
| silicone baking sheet | ≈561 | Title |
| macaron baking mat | ≈149 | Title + Item Highlights |
| non stick baking mat | ≈74 | Title |
| silicone baking mat set | ≈74 | Title |
| silicone baking mat half sheet | ≈37 | Title |
| cookie sheet liner | ≈37 | Title + Item Highlights |
The next step is step 3: search the ASIN with each phrase, then put Sponsored Products on "silicone baking mat" in exact match and track the position weekly. Phrases that combine words across fields, like "macaron baking mat", are worth testing first, since singular and plural forms don't always match the same way.
Amazon Keyword Ranking Checklist
Run through this list for each listing and each keyword you want to rank for. The free tools cover the first few rows without an account.
| Area | Check | Pass when |
|---|---|---|
| Keyword choice | The phrase describes your product | A shopper typing it would buy your item |
| Keyword choice | The phrase has Amazon search volume | Volume shows in Amazon search data, not only Google's |
| Title | Main keyword in the first words | Within the 75-character limit |
| Item Highlights | Secondary keywords, no title repeats | Under 125 characters |
| Bullets | Five benefit-led bullets with long-tail phrases | Each under 255 characters, ideally under 200 |
| Backend | Synonyms and variants only | Under 250 bytes, no competitor brands or ASINs |
| Indexing | ASIN plus phrase returns your product | For the main and every secondary keyword |
| Images | White main image, product fills most of the frame | Seven gallery images with lifestyle and scale shots |
| Claims | Counts and claims match the spec table | No health or unsupported claims |
| Offer | Price within the page-one range, in stock | No stockouts during the ranking push |
| Traffic | Exact-match Sponsored Products on the main keyword | Search term report reviewed weekly |
| Tracking | Position logged per keyword and marketplace | Each listing edit noted next to the date |
What to Do When Your Keyword Rank Drops
A drop has a cause, and the order you check things in saves time. Start with the causes that remove you from results entirely, then move to the ones that lower your position.
| Symptom | Likely cause | First check |
|---|---|---|
| Gone for one phrase, fine for others | A word dropped out of an indexed field, often after a title rewrite | Compare the live title with your last version; run the ASIN plus phrase search |
| Gone for every phrase | Listing suppressed or out of stock | Seller Central inventory; our guide to fixing a listing that's search suppressed |
| Slow slide over weeks | Competitors converting better, or your price drifted up | Page-one prices and ratings against yours |
| Sudden drop after an edit | The edit removed a phrase or broke a claim | Your edit log from step 7 |
| Drop in one marketplace only | That storefront's copy or backend differs | Audit the listing in that marketplace |
Choosing a Tool to Track and Fix Keyword Rank
You can run every step above by hand. A tool earns its cost when you manage more than a handful of ASINs, sell in several marketplaces, or need to know why a listing isn't ranking rather than only that it isn't. For ranking work, look for these six.
| What to look for | Why it matters | In Amazon SEO Ranking |
|---|---|---|
| A published scoring method | You can see which fix is worth the most | 12 equally weighted criteria, pass rules published |
| Fixes tied to the failed criterion | Generic AI copy invents claims and miscounts characters | AI rewrites grounded in the spec table, checked for claims and length |
| Keywords checked against your copy | A keyword list helps only once each phrase lands in a field Amazon indexes | Target and secondary keywords with a coverage check showing where each landed |
| Score a fix before it goes live | A bad edit can cost rank you already hold | Draft audit scores new copy against the live listing |
| A free test on your own listing | You can judge the scoring before paying | 3 complete audits a month, no card |
| Every marketplace you sell in | Rank and fixes differ by storefront | Audit in 23 Amazon storefronts; search volume in 16 |
Amazon SEO Ranking covers the listing side of ranking: placement, compliance and keyword data. The audit also checks part of steps 4 and 5, with criteria for Images & Video, Reviews & Social Proof and Stock & Fulfillment (Prime eligibility). It doesn't run PPC campaigns or manage inventory. For those, Seller Central and Amazon Ads are the place to work, and our comparison of the best Amazon seller tools covers suites that include them.
Everything You Need to Know About How to Rank for Keywords on Amazon
| Topic | What to know | Rule or number |
|---|---|---|
| Two stages | Indexing decides if you appear; performance decides where | Relevance first, then sales |
| Algorithm name | Usually called A9; "A10" is a seller label | Machine-learned, category-specific models |
| Intent | COSMO and Alexa for Shopping read use cases and context | State who, what for and what it fits |
| Title | Main keyword first | 75 characters since July 27, 2026 |
| Item Highlights | Searchable line below the title | 125 characters |
| Bullets | Benefits with long-tail phrases | 5 bullets, up to 255 characters, 200 on mobile |
| Backend | Synonyms and variants, no repeats | Under 250 bytes in most marketplaces |
| Indexing check | Search ASIN plus phrase | After every edit |
| Performance | Clicks, sales, price, stock, reviews | Price within the page-one range |
| Ads | Sponsored Products on the main keyword | Exact match, weekly search term review |
| Avoid | Keyword stuffing, competitor brands, unsupported claims | Amazon says stuffing can hurt rank |
| Tracking | Per keyword and per marketplace | Log edits next to rank changes |
Find Out Why Your Listing Isn't Ranking, Free
Amazon SEO Ranking audits a live listing against 12 published criteria, so you see which fix is worth the most points before you change anything. The AI rewrites target the exact criterion your listing fails, grounded in its spec table and checked in code for Amazon's limits, pack counts and claims. You can score the new copy as a draft before it goes live, which matters now that Amazon rewrites titles that break the 75-character rule.
It's built for sellers and agencies with live listings that should rank better, especially anyone selling one product across several Amazon storefronts, where each listing needs its own keywords and checks. Agencies can audit and rewrite up to 500 ASINs per run with Bulk Optimization on the Agency plan, then compare a client's listings side by side to find the one to use as the template.
The free plan includes 3 full audits a month with no credit card required. Pro costs $79 a month with a 7-day free trial and adds full keyword research, including What I rank for. Run a free Amazon listing audit on the ASIN that isn't ranking, or compare plans and pricing if you're working on a full catalog.
FAQ
How do I rank higher for a keyword on Amazon?
You rank higher for a keyword on Amazon by getting indexed for the phrase and then earning more clicks and sales from shoppers who search it. Put the main keyword in the first words of your 75-character title and secondary phrases in Item Highlights, bullets and backend search terms. Search Amazon for your ASIN plus the phrase to confirm indexing. Then improve the main image, price and reviews, and run exact-match Sponsored Products on the keyword so sales flow through that search.
How does the Amazon ranking algorithm work?
The Amazon ranking algorithm works in two stages: it first matches products whose indexed text fits the query, then orders those products by machine-learned models trained on shopper behavior. Amazon Search scientists have described separate ranking models per category, blended for All Products searches. Amazon's seller guidance names sales, price, listing quality, account health and advertising among the inputs. Newer systems such as COSMO also read shopping intent beyond the exact words typed.
How do I know if my product is indexed for a keyword on Amazon?
You know your product is indexed for a keyword on Amazon when a search for your ASIN followed by the keyword returns your product. For example, search "B0XXXXXXXX silicone baking mat" in the Amazon search bar. If nothing comes back, a word from the phrase is missing from your indexed fields, or your backend field is over its limit and being ignored. Run the test after every edit and again a few days later.
Does Amazon PPC help organic ranking?
Amazon PPC can help organic ranking because ads bring sales on the keyword, and sales are a signal Amazon ranks on. Amazon's own seller guide lists Sponsored Products as one way to help offers rise through search results. Ads work best on a listing that's already indexed for the phrase and converts well. Use exact match on your main keyword and move converting search terms from the report into your listing copy.
What is the Amazon A10 algorithm?
The Amazon A10 algorithm is a name sellers use for the current version of Amazon's search ranking, and Amazon hasn't published or documented anything by that name. The older name, A9, comes from A9.com, the Amazon subsidiary that worked on product search. Seller guides use "A10" to describe a heavier weight on conversion and outside traffic. Rely on the levers Amazon names in its own guidance: keywords, titles, bullets, backend terms, images, price and advertising.
What is a good keyword ranking on Amazon?
A good keyword ranking on Amazon is an organic position in the top 10 results for a phrase with real search volume that converts for your product. Positions 11 to 100 still show eligibility, which means the listing is indexed and worth pushing. A #1 position on a phrase with 37 monthly searches is worth less than #8 on a phrase with 6,245. Track positions in bands (#1, #2 to 3, #4 to 10, #11 to 100) to see movement without reacting to daily noise.
Does Alexa for Shopping change how Amazon listings rank?
Alexa for Shopping changes how shoppers find products, since the assistant answers questions using the product catalog, customer reviews, community Q&As and the web. Amazon renamed its Rufus assistant to Alexa for Shopping on May 13, 2026. A listing with plain facts about use, size, compatibility and materials gives the assistant something to quote. Vague phrases like "premium quality" give it nothing to match a shopper's question.
Do I need a paid tool to rank for keywords on Amazon?
You don't need a paid tool to rank for keywords on Amazon, because autocomplete, the ASIN plus phrase test and free checkers cover the basics. Amazon SEO Ranking's free plan includes 3 full audits a month, the character limit checker and a keyword preview of up to 30 lookups a month, with no card. A paid plan adds value when you need full search volume, current keyword positions or AI copy checks across many listings. Pro costs $79 a month and starts with a 7-day free trial.
