[{"data":1,"prerenderedAt":80},["ShallowReactive",2],{"glossary-term-a9-algorithm-en":3,"glossary-terms-by-ids-3a67c6f4-177f-4815-a914-cb3ebe68857d,8c1d335b-38ea-4ef4-b39f-31707799dcf4,eb17cca9-4ea2-46ac-a30c-1b92c6660a8b-en":27,"glossary-terms-en":28},{"id":4,"slug":5,"is_enabled":6,"sort_order":7,"related_post_id":8,"related_service_id":9,"related_term_ids":10,"last_modify":14,"created_at":15,"updated_at":16,"locale_code":17,"term":18,"short_definition":19,"body":20,"meta_title":21,"meta_description":22,"related_post_slug":23,"related_post_title":24,"related_post_is_public":6,"related_service_slug":25,"related_service_name":26,"related_service_is_enabled":6,"heading":21,"published_at":14},"87df8b1f-4811-4e07-9171-63fd4923c405","a9-algorithm",true,0,"fc13fe38-60fa-4288-b6a7-de4b2e4f6fe7","b2229fd7-1f99-4a26-ad08-d1113955c798",[11,12,13],"3a67c6f4-177f-4815-a914-cb3ebe68857d","8c1d335b-38ea-4ef4-b39f-31707799dcf4","eb17cca9-4ea2-46ac-a30c-1b92c6660a8b","2026-11-02","2026-11-02T16:18:15.855588+00:00","2026-11-02T19:38:47.253477+00:00","en","A9 Algorithm","A9 is the common name for Amazon's product search ranking algorithm, which decides which products appear for a search and in what order, based mainly on relevance to the query and the product's sales performance.","The name comes from A9.com, the Amazon subsidiary that built its search technology. Amazon does not use the label in public anymore, and some sellers call the current version A10. Either way, the system ranks products to show the ones shoppers are most likely to buy.\n\n### What it looks at\n\nAmazon describes the factors only in general terms. The ones sellers and agencies work with:\n\n- relevance: whether the search words appear in the title, bullets, [backend search terms](\u002Fglossary\u002Fbackend-search-terms) and other attributes\n- performance: sales history, [conversion rate](\u002Fglossary\u002Fconversion-rate) and [click-through rate](\u002Fglossary\u002Fctr) for that search\n- availability and price: an in-stock, competitively priced offer, often tied to holding the [Buy Box](\u002Fglossary\u002Fbuy-box)\n- delivery speed and customer experience signals\n\n### Why it matters\n\nOrganic rank on high-volume searches is the cheapest traffic a brand gets. Brands use ads to support rank because ad-driven sales count toward a product's sales history.\n\n### Common mistake\n\nTreating ranking as keyword stuffing. Indexing gets you into the results, and sales velocity and conversion decide where you sit. Our article on [how Amazon ranking works](\u002Fblog\u002Famazon-seo-how-ranking-works) goes through the factors and how to move up.","What Is the Amazon A9 Algorithm?","The Amazon A9 algorithm explained: where the name comes from, the relevance and performance factors behind search ranking, and how brands move up.","amazon-seo-how-ranking-works","What Is Amazon SEO? How Ranking Works and How to Move Up","amazon-seo","Amazon SEO",[],[29,34,35,40,45,50,55,60,65,70,75],{"id":30,"slug":31,"term":32,"short_definition":33},"265eb399-2ba5-411c-a1eb-9c41391b3f13","a-plus-content","A+ Content","A+ Content is the section of an Amazon product detail page where brand owners replace the plain product description with images, comparison charts and formatted text modules; it requires Brand Registry.",{"id":4,"slug":5,"term":18,"short_definition":19},{"id":36,"slug":37,"term":38,"short_definition":39},"f4c40d99-939f-4d1a-b253-eba8e085fce4","acos","ACoS (Advertising Cost of Sales)","ACoS (advertising cost of sales) is the share of ad-attributed sales spent on advertising, calculated as ad spend divided by ad sales times 100; an ACoS of 25% means $25 of ad spend for every $100 in ad sales.",{"id":41,"slug":42,"term":43,"short_definition":44},"aaa36c94-6a2a-4d4c-800c-fa1d48c8684b","brand-registry","Amazon Brand Registry","Amazon Brand Registry is Amazon's program for trademark owners that gives them more control over their product listings, access to brand-only advertising and content tools, and tools to report counterfeits and infringement.",{"id":46,"slug":47,"term":48,"short_definition":49},"9b5c7c9a-d511-4c8e-9774-2307ec4add2c","storefront","Amazon Storefront","An Amazon Storefront, officially called an Amazon Store, is a multi-page branded shopping destination on Amazon with its own URL, available at no cost to brands enrolled in Brand Registry.",{"id":51,"slug":52,"term":53,"short_definition":54},"a65df449-1de8-4ad2-8ec4-7973fb32f59b","vine","Amazon Vine","Amazon Vine is an invitation-only review program where Amazon sends products from enrolled brands to trusted reviewers, called Vine Voices, who get the item at no cost in exchange for an honest review.",{"id":56,"slug":57,"term":58,"short_definition":59},"230b5a40-78dc-443c-a421-a29a8d1c8efb","asin","ASIN","An ASIN (Amazon Standard Identification Number) is the 10-character alphanumeric code Amazon assigns to each product in its catalog; it identifies one detail page that every seller of that exact item shares.",{"id":61,"slug":62,"term":63,"short_definition":64},"56722521-a391-4396-a435-80460d0ec95d","buy-box","Buy Box","The Buy Box is the purchase panel on an Amazon product page with the Add to Cart and Buy Now buttons; when several sellers offer the same product, Amazon decides whose offer fills it and now calls it the Featured Offer.",{"id":66,"slug":67,"term":68,"short_definition":69},"3ce8cb16-1838-4b86-a5b5-3eaa1110bc31","fba","FBA (Fulfillment by Amazon)","FBA (Fulfillment by Amazon) is the Amazon program where you send inventory to Amazon's fulfillment centers, and Amazon stores it, picks, packs and ships each order, and handles customer service and returns for those units.",{"id":71,"slug":72,"term":73,"short_definition":74},"aa43edb0-676c-405d-a7f2-6d44558270f2","roas","ROAS (Return on Ad Spend)","ROAS (return on ad spend) is the revenue earned for every dollar spent on advertising, calculated as ad-attributed sales divided by ad spend; a ROAS of 4 means $4 in sales for each $1 of ads.",{"id":76,"slug":77,"term":78,"short_definition":79},"bf7ba38f-42e7-463b-8564-f6feca4f4ab9","tacos","TACoS (Total Advertising Cost of Sales)","TACoS (total advertising cost of sales) is ad spend divided by total revenue, both ad-attributed and organic, times 100; it shows how much of a brand's whole Amazon business goes to advertising.",1793651103353]