SEO for Amazon
Part of the SEO Program · 2 of 6 platforms56% of US shoppers start their product search on Amazon - well ahead of Google (21%) and Walmart (12%). The A9 and A10 ranking systems don't reward popularity; they reward conversion. Listings that turn impressions into orders climb. Listings that don't disappear. The Capconvert SEO Program for Amazon is built around the signals A10 actually weights.
Amazon SEO
Amazon's ranking system is fundamentally different from Google's. Google ranks pages by authority and relevance. Amazon ranks listings by conversion probability - how likely is this customer to click this listing, add it to cart, and complete the purchase? Every signal Amazon weights is a proxy for that one question.
The Buy Box is the rank. 80%+ of Amazon purchases go through whichever listing wins the Buy Box for a given ASIN. For unique-brand listings the Buy Box is a near-given. For competitive ASINs and reseller categories, winning it requires a specific combination of price, fulfillment, account health, and inventory reliability - not just keyword optimization.
AMAZON ALGORITHMS
Amazon's ranking has moved through two named generations of the same engine and is now layering a third, generative system on top of it.
A9. The original product-ranking system, named after the Amazon subsidiary that built it. It matched queries to listings primarily on exact-match keywords in the title, bullets, and backend search terms, then ordered the matches by performance, with sales velocity the dominant signal. Relevance was mostly lexical, so a listing that did not literally contain a shopper's words struggled to surface for them. Optimization in this era felt like 2010-era SEO: put the right keywords in the right fields and ride the velocity flywheel. For a brand, ranking meant covering every keyword variation a customer might type and converting enough to keep the flywheel turning.
A10. The current system, and a more behavioral one. A10 still reads relevance from the same fields - title, bullets, backend search terms - but it leans harder on how shoppers actually behave: conversion rate, sales velocity, click-through rate, review volume and rating, price competitiveness, and Prime-eligible fulfillment. Its defining shift is where demand comes from: A10 gives more weight to organic sales velocity, repeat-purchase and conversion history, and external traffic that converts on Amazon, while discounting purely ad-driven sales relative to how A9 treated them. Keyword stuffing alone no longer ranks, and off-Amazon traffic that converts on-platform is now an explicit way to move a listing up. For a brand, the ranking implication is that earned, converting demand outranks paid volume, so the listing has to win the click and the sale, not just buy the impression.
Bedrock & Rufus. Rufus is Amazon's generative AI shopping assistant, launched in beta in February 2024 and rebranded to Alexa for Shopping in May 2026, that answers shopping questions and recommends products in conversation. Per Amazon's own newsroom, it is built on Amazon Bedrock and routes across a mix of large language models, including Anthropic's Claude Sonnet, Amazon Nova, and a custom model trained on Amazon's catalog, customer reviews, and community Q&A. This semantic layer reads listings for intent, not just keyword overlap, so a product can surface for a need it never spells out verbatim, much like Amazon's COSMO commonsense knowledge graph that mines shopper behavior to map queries to attributes. For a brand, the ranking implication is that listings written in clear, specific, human language - covering use cases, materials, and the problems the product solves - now get understood and recommended in ways keyword-stuffed copy does not.
Sponsored ad systems. Sponsored Products, Sponsored Brands, and Sponsored Display are Amazon's three self-serve ad formats, which place listings into and around search results through a separate cost-per-click auction rather than the organic algorithm. Sponsored Products promotes individual listings inside results, Sponsored Brands runs headline and brand-logo placements above them, and Sponsored Display retargets shoppers on and off Amazon. They do not buy organic rank directly, but the behavior they generate feeds back into it: ads that earn high click-through and conversion send A10 the same demand and relevance signals an organic sale would. For a brand, the ranking implication is that well-run ads on a listing that actually converts can prime organic rank, while ads pointed at a weak listing just spend faster.
AMAZON RANKING SIGNALS
Amazon's 25 primary ranking signals reduce to a tighter cluster that drives the majority of outcomes. These are the levers we work on every Amazon client.
SALES VELOCITY
Sales velocity is the #1 ranking signal on Amazon, and unlike Google authority, it can be moved in days, not quarters. A listing that goes from 5 sales a day to 50 will climb organic rank for its priority keywords within a single sales cycle. The reverse is also true: velocity dips drop rank within days.
This creates the Amazon cold-start problem. New listings have no velocity history, so A10 has nothing to rank them on. They sit on page 5+ for their priority keywords until external traffic, Sponsored Products, and a deliberate launch sequence build the velocity that A10 needs to promote them organically.
Velocity is also why price matters more on Amazon than on Google. A listing priced 5% above category average will convert measurably worse, and lower CVR depresses velocity, which depresses rank, which depresses traffic, which further depresses velocity. The flywheel runs in both directions.
LISTING QUALITY
Listing quality is what A10 evaluates once a customer arrives. Even with high keyword relevance, a poorly built listing converts at half the category benchmark - and that gap shows up in velocity within days.
Title. Brand + keyword cluster + variant + qualifiers, in that order. The first 80 characters drive both keyword indexing and click-through on mobile. Truncation discipline is non-optional.
Bullets. Five bullets, each one anchored on a buyer objection or a category-specific differentiator. Bullets are heavily indexed and account for a significant portion of CVR uplift on listings that are otherwise tied on velocity.
A+ Content. Brand-registered listings can deploy A+ Content - comparison charts, brand storytelling, lifestyle imagery. A+ alone routinely lifts CVR 5-10% post-deployment, which feeds directly into velocity and rank.
Images. Seven images, with the main image meeting Amazon's white-background requirements and the remaining six covering scale, lifestyle, ingredient/spec callouts, comparison, and packaging. Image quality is invisible to A10 directly - but its second-order impact on CVR is among the largest controllable levers on a listing.
OPERATIONS & ADS
Amazon ranks the entire seller, not just the listing. Account health, fulfillment performance, return rate, and seller-feedback score all feed into A10's evaluation of a listing's ranking potential.
FBA & Prime. FBA listings consistently outrank merchant-fulfilled equivalents at the same velocity. Prime eligibility weights the Buy Box decision heavily - for many ASINs, losing Prime means losing the Buy Box entirely.
Return & defect rates. A high return rate or order-defect rate triggers algorithmic suppression. Listings flagged for quality concerns lose rank even when their velocity is otherwise strong.
Sponsored Products feeds A10. The clearest A9-vs-A10 difference: in A9, Sponsored conversions had no organic ranking effect. In A10, Sponsored-driven sales count toward velocity for the matched keywords. Sponsored Products is now an organic-rank lever, not just a paid-traffic lever.
Inventory reliability. Stock-outs reset velocity history. The flywheel restarts cold every time inventory hits zero. Inventory planning is part of SEO on Amazon - not a separate operations problem.
OUR APPROACH
Every Amazon engagement runs through the same five-step methodology - keyword, competitor, listing, velocity, retention - refined across hundreds of catalogs and tens of thousands of ASINs.
Keyword research. We pull search-volume data, identify the priority terms with the strongest commercial intent for your category, and map them to ASIN coverage. The output is your indexed-keyword plan.
Competitor & SERP analysis. We benchmark page-1 listings on velocity, review count, price, and listing-quality dimensions - then quantify the gap between your listings and the page-1 median.
Listing rebuild. Title, bullets, backend search terms, images, A+ Content. Rewritten end-to-end against the keyword plan and the conversion patterns of the listings currently winning the rank.
Velocity engineering. Sponsored Products, coupons, external traffic, and price strategy deployed in a sequenced launch designed to manufacture the early velocity A10 requires to organically rank the rebuilt listings.
Retention & reviews. Vine, Request-a-Review automation, post-purchase email, and Subscribe & Save - the levers that compound velocity into a defensible review moat over months 2–6.