Listing Optimization
Amazon A+ Content Optimization: What's Actually Indexed and How to Rank (2026)
Amazon A+ content optimization guide for 2026: which modules Amazon indexes, where keywords actually matter, and how to run A/B tests that lift rank.
Amazon sellers hear conflicting advice about A+ Content every week. One agency claims it’s fully indexed by Amazon’s search algorithm, another says it’s purely decorative, and both sound convincing. The truth sits in the middle, and getting amazon a plus content optimization wrong costs sellers both conversions and organic visibility.
Without clarity on what A+ Content can and can’t do for ranking, sellers tend to fall into one of two traps. They either skip keywords entirely (treating modules as visual-only) or they stuff every text block with high-volume terms, wasting effort on fields the algorithm ignores.
This guide maps which A+ elements Amazon actually indexes, which ones Google picks up, and how conversion lift from well-built content feeds back into organic rank. By 2026, Amazon’s experimentation tooling has matured enough that you can test these claims yourself, so we’ll cover that process too.
Does Amazon actually index A+ Content for search?
Amazon doesn’t index A+ body text for its internal search engine, but image alt-text is indexed, and Google crawls everything on the page for organic discovery. That’s the short answer. The longer answer explains why so many sellers get this wrong.
Years of split-testing by independent agencies have shown that keyword density in Standard Text modules has no measurable effect on Amazon’s internal rank. Stuffing “garlic press” into every paragraph of your A+ copy won’t move the needle on that search term. Amazon’s own Seller Central help documentation is the clearest source on what does count: image alt-text is specifically called out as helping products appear in search results.
Google treats the page differently. Google’s crawlers index all visible A+ Content, which means paragraphs that are ignored by Amazon’s A10 can still drive traffic from Google Shopping and Google Images. That’s a real benefit, just not the one most sellers assume they’re getting.
The indirect lever is conversion rate. Amazon’s algorithm promotes products that sell. Better A+ Content lifts click-to-purchase conversion (Amazon has cited up to 8% for Basic and up to 20% for Premium), and that sales velocity feeds back into organic rank. For more on how ranking signals work on Amazon vs the web, see our Amazon SEO vs Google SEO breakdown.
| SEO Factor | Indexed by Amazon? | Indexed by Google? | Impact Level |
|---|---|---|---|
| A+ body text | No | Yes | Low on Amazon, medium on Google |
| Image alt-text | Yes | Yes | High |
| Comparison chart headers | Partial | Yes | Medium |
| Brand Story text | No | Yes | Low |
| Video transcripts (Premium) | No | No | None for SEO |
| Text baked into images | No | No | Zero for SEO, high for CVR |
This changes the strategy from “put keywords everywhere” to “put keywords where they actually count.”
Where do keywords actually matter in A+ Content?
Keywords matter in five specific zones: image alt-text, crawlable text modules, comparison chart headers, Brand Story sections, and (for conversion only) image overlay text.
Zone 1 is image alt-text. Each image allows up to 100 characters of alt-text, and this field is confirmed indexed by Amazon. Treat it with the same discipline as backend keywords. Instead of “blue running shoe side view,” write “mens trail running shoes waterproof size 10.” Common misspellings and relevant Spanish terms can also fit here if they match the image.
Zone 2 is crawlable text modules, including Standard Text, Standard Single Image & Sidebar, and Standard Three Images & Text. Amazon won’t rank the listing based on this text, but Google will crawl it. Up to 500 words of natural, keyword-aware copy captures external traffic without triggering any guideline issues.
Zone 3 is comparison chart headers. Column and row labels are text-based and appear to be partially indexed because of their structured format. Use product-descriptive headers instead of “Feature 1” or “Size.” It helps shoppers compare and gives you one more field with keyword potential.
Zone 4 is the Brand Story. This block (around 200 to 250 words) appears across every ASIN in your catalog, so optimizing it once creates a consistent keyword footprint brand-wide. Pair your core brand terms with 2-3 category keywords.
Zone 5 is image overlay text, meaning text baked into the image file itself. Not crawlable, not indexed, not useful for SEO. But it drives conversion more than any other element, so write it for the human shopper with clear benefits and selling points.
Which A+ modules give the most keyword real estate?
Standard Comparison Chart, Standard Single Image and Specs Detail, and Standard Three Images and Text give you the most keyword surface area of the Basic A+ modules.
Sellers are limited to five modules per Basic A+ project (excluding Brand Story), so module selection matters. The Standard Comparison Chart is the single most valuable module because it combines indexed-adjacent header text with internal linking to other ASINs in your catalog. It cross-sells and sends relevance signals at the same time.
The Standard Single Image and Specs Detail module works well for technical products. The spec table lets you include terms like wattage, dimensions, or material type without forcing them into prose. Shoppers searching feature-level long-tails find these useful on the Google side.
The Standard Three Images and Text module gives you three separate alt-text fields (300 characters total across the three images) plus three text blocks. That’s triple the indexed-alt-text footprint of a single large image module.
For brands with Premium A+ Content, you get seven modules instead of five, bigger images, and interactive features like video and hotspots. Premium is free for brands that qualify (Brand Registry, five approved Basic projects, and a published Brand Story) as of early 2026. For more on the broader optimization picture, see our Amazon listing optimization guide.
How does A+ Content conversion lift create an indirect SEO flywheel?
Higher conversion from optimized A+ Content produces more sales velocity, which Amazon’s algorithm reads as a ranking signal, which produces more traffic, which produces more sales. That’s the flywheel.
Amazon’s A10 algorithm is built to maximize revenue per search. A listing converting at 15% will outrank one converting at 5% in most categories, even if the lower-converting listing has stronger keyword coverage. Amazon has publicly cited sales lifts of up to 8% for Basic A+ Content and up to 20% for Premium. A brand doing $1M a year sees a 20% lift as roughly $200,000 in incremental revenue, plus the ranking improvements that come with that velocity.
Return rate is the other half of the equation. Approximately 22% of ecommerce returns happen because the product didn’t match the description or imagery (as of 2025 industry data). Accurate A+ Content sets expectations and reduces returns, and lower return rates are a positive ranking signal.
Mobile layout matters more than most sellers realize. With roughly 60% of Amazon traffic coming from mobile devices (as of 2025), content designed on a desktop monitor often renders as tiny text and cluttered thumbnails on a phone. Sellers who design mobile-first typically see outsized conversion gains, which compounds the flywheel. For related conversion mechanics, see our Amazon conversion rate guide.
How should sellers measure and test A+ Content performance?
Use Amazon’s Manage Your Experiments (MYE) tool to A/B test A+ versions against each other, tracking conversion rate, units sold, and projected annual impact.
MYE is free for Brand Registered sellers and splits traffic between a control and a challenger. You can test layout, image selection, copy density, or whole module replacements. The tool reports units sold, CVR, and a projected one-year revenue impact so you can quantify the winner.
The most common mistake is designing visuals first and bolting keywords on afterward. Flip the order: start with keyword research so alt-text and headers are populated with real search data, then design the modules around that foundation. Our Amazon keyword research methodology walks through the research step, and the free Amazon keyword tool handles the discovery side.
Run experiments for at least four weeks. Ending early produces false positives, which is why Amazon updated MYE in 2026 to recommend minimum run times and to auto-publish winners once statistical significance is reached. Pair MYE results with a reverse-ASIN check on your winning variants using our reverse ASIN tool so you can see which keywords your top competitors are ranking for after the change.
Frequently Asked Questions About Amazon A+ Content Optimization
Does Amazon index A+ Content text for search ranking?
Amazon doesn’t index A+ body text for its internal search algorithm, though image alt-text is indexed and Google crawls the full page. The confusion comes from conflicting expert opinions, but years of split-testing confirm the pattern: direct text indexing on Amazon doesn’t happen, indirect benefits through alt-text and conversion lift do.
Is A+ Content free for Amazon sellers?
Basic A+ Content is free for all sellers in Brand Registry, and Premium A+ Content is also free as of early 2026 for brands that qualify. Qualification requires Brand Registry enrollment, five approved Basic A+ projects, and a published Brand Story across your ASINs. Access typically appears within 48 hours of meeting the criteria.
Does A+ Content replace the product description?
Yes, on brand-registered listings A+ Content replaces the plain-text description on the detail page. The underlying text description still exists in the backend fields, and some sellers believe it continues to contribute marginal indexing value, but shoppers only ever see the A+ modules.
Can keywords in A+ Content images help with SEO?
Image alt-text is confirmed indexed by Amazon search and allows up to 100 characters per image. Text that’s baked into the image graphic itself is not crawled by any search engine, so reserve that layer for persuasive copy and selling points rather than keywords.
Conclusion
- Treat A+ as a conversion tool first, SEO tool second, because the biggest ranking gains come from sales velocity.
- Load keywords into the five indexed zones (alt-text, text modules for Google, comparison headers, Brand Story, and spec tables) and skip the rest.
- Design mobile-first since the majority of your traffic is on a phone screen.
- Run A/B tests through MYE for at least four weeks per experiment to avoid false positives.
- Qualify for Premium A+ as soon as you can since it’s free and gives you two extra modules of surface area.
The real power of A+ Content isn’t in stuffing keywords into paragraphs Amazon ignores. It’s in building modules that convert, which then signal to the algorithm that your product deserves better placement. Start with keyword data, design around it, and test everything.
If you want the keyword foundation to build A+ Content on, try the free Amazon keyword tool or sign up for a Keywords.am plan to run reverse-ASIN research on your top competitors before your next A+ refresh.