Amazon SEO

Learn how Amazon Rufus and the COSMO algorithm work. Discover how semantic search replaces keywords and how to optimize your listings for AI.

Carlos Martínez · Jul 26, 2026 11 min read

Stop wasting time on the dead Amazon platinum keywords field. Learn how AI-driven keyword clustering redefines high-intent search terms for 2026.

Carlos Martínez · Jul 26, 2026 13 min read

Master Amazon keyword research in the AI era. Learn how semantic search, Rufus, and long-tail intent drive profitable conversions for your brand.

Carlos Martínez · Jul 26, 2026 13 min read

Executive summary Amazon’s catalog is a strict relational database; 80% of return costs stem from just 20% of poorly mapped ASINs. US retail media ad spend hit $59.6 billion in 2024 and is scaling past $72 billion in 2025, meaning … Read More

Carlos Martínez Barriga · Jul 15, 2026 9 min read

Executive summary The AMZ Suggestion Expander by Raybek Solutions remains a popular free Chrome extension, but its raw autocomplete data is rapidly losing impact. In 2025, Amazon’s AI handled roughly 14% of all searches, shifting user behavior from rigid keywords … Read More

Carlos Martínez Barriga · Jul 3, 2026 10 min read

Executive summary The spray-and-pray approach to generic keywords is officially dead; targeting broad terms without semantic context now damages your conversion rate and organic ranking. Gartner predicts a 25% drop in traditional search engine volume by 2026 as users shift … Read More

Carlos Martínez Barriga · Jul 2, 2026 11 min read

Master Amazon SEO with search intent. Optimize for the COSMO algorithm and Rufus to boost organic ranking, visibility, and lower your PPC costs.

Carlos Martínez Barriga · Jun 30, 2026 15 min read

Executive summary The 2025-2026 shift to the COSMO algorithm means Amazon now ranks products based on problem-solving intent, not just keyword matching. Backend search terms have a strict limit of 249 bytes (not characters). Exceeding this by a single byte … Read More

Carlos Martínez Barriga · Jun 30, 2026 11 min read

Executive summary The 249-byte trap: Over 47% of sellers lose indexing entirely because they count characters instead of bytes. A single emoji or trademark symbol can cost you up to four bytes. COSMO kills keyword stuffing: Amazon’s algorithmic shift prioritizes … Read More

Carlos Martínez Barriga · Jun 29, 2026 11 min read

Executive summary Broad, non-branded terms consume up to 60% of most Amazon advertising budgets, yet they remain the most mismanaged aspect of e-commerce strategy. Amazon’s ad revenue hit a staggering $56.2 billion in 2024, proving the auction is getting fiercer … Read More

Carlos Martínez Barriga · Jun 28, 2026 9 min read

Executive summary Amazon’s ad revenue hit $68.5 billion in 2025, driving CPCs up by 12% and making aggressive query optimization a strict requirement for survival. The myth of the “all-in-one” campaign is dead; algorithms simply cannot optimize for ranking and … Read More

Carlos Martínez Barriga · Jun 28, 2026 10 min read

Executive summary Backend search terms are strictly capped at 249 bytes. Exceeding this limit by a single byte silently de-indexes your entire keyword field. Titles have a hard limit of 200 characters across most categories, but a 2025 algorithm update … Read More

Carlos Martínez Barriga · Jun 27, 2026 9 min read

Executive summary Amazon conversion rates average 10% to 15% in 2026, but top performers consistently break the 20% barrier by aligning product copy with search intent. With average Cost Per Click (CPC) rising by 8-12% year-over-year, traffic acquisition is entirely … Read More

Carlos Martínez Barriga · Jun 25, 2026 10 min read

Executive summary Amazon CPCs have surged to an average of $1.00–$1.25 in 2026, meaning poor conversion rates now punish your profitability faster than ever. Traditional SEO is breaking down. Gartner predicts a 25% drop in traditional search volume by 2026 … Read More

Carlos Martínez Barriga · Jun 22, 2026 11 min read

Executive summary The strict limit for Amazon search terms is 249 bytes in the US and EU; exceeding it by even a single byte results in absolute zero indexing. Amazon’s legacy A9 keyword-matching algorithm now operates alongside COSMO and Rufus, … Read More

Carlos Martínez Barriga · Jun 21, 2026 11 min read

Executive summary Amazon still strictly enforces the 250-byte backend limit, but the way the A9 algorithm reads these bytes has shifted toward semantic relevance rather than exact matching. Auto campaigns now eat up nearly 40% of impression share. If your … Read More

Carlos Martínez Barriga · Jun 20, 2026 9 min read

Executive summary Average Amazon conversion rates hover around 10-15%, but Prime members convert at a staggering 74%. Comparing Amazon to standard ecommerce (which averages 2-3%) proves why optimizing your marketplace listings yields a higher ROI than external traffic. Recent 2025 … Read More

Carlos Martínez Barriga · Jun 20, 2026 11 min read

Executive summary The standard Amazon search bar actively hides the most profitable long-tail keywords to speed up casual browsing. An expander tool forces it to reveal them. Forget the 2025 AI chatbot hype. The traditional search box still drives the … Read More

Carlos Martínez Barriga · Jun 19, 2026 9 min read

Executive summary Amazon’s COSMO algorithm explicitly reads “Intended Use” backend fields to feed the Rufus AI shopping assistant. Leaving this specific attribute blank makes your ASIN invisible to high-converting, situational mobile queries. The strict 250-byte limit applies across your generic … Read More

Carlos Martínez Barriga · Jun 19, 2026 11 min read

Executive summary Amazon backend keywords are strictly capped at 249 bytes (not characters). Exceeding this limit by a single byte triggers silent de-indexing of your entire search terms field. The introduction of generative AI and Amazon’s Rufus assistant means contextual, … Read More

Carlos Martínez Barriga · Jun 18, 2026 10 min read

Executive summary Amazon backend keywords are strictly capped at 249 bytes in 2026—exceeding this by a single byte triggers total suppression. Misspellings are a complete waste of space. Amazon’s A10 algorithm auto-corrects them, so use those precious bytes for high-intent … Read More

Carlos Martínez Barriga · Jun 18, 2026 9 min read

TL;DR — Key takeaways Amazon launched a Claude-powered Seller Assistant (AWS Bedrock, Q4 2025) — your competitors are already operating against you with the same model you can use directly. 72% of Amazon sellers who tried AI tools abandoned them … Read More

Carlos Martínez Barriga · Jun 2, 2026 15 min read

TL;DR — Key takeaways ASIN (Amazon Standard Identification Number) is a 10-character alphanumeric code Amazon assigns to every product in its catalog. Amazon generates it automatically when a new listing is created; for books it matches the ISBN-10. It is … Read More

Carlos Martínez Barriga · May 20, 2026 10 min read

TL;DR — Key takeaways Only 1-3% of Amazon buyers leave a review spontaneously — volume of sales matters more than any trick. Amazon Vine and the “Request a Review” button in Seller Central are the only two 100% policy-compliant channels … Read More

Carlos Martínez Barriga · May 20, 2026 11 min read