Quick Answer
Amazon Platinum Keywords are a retired keyword field that once sorted products into the storefronts of Platinum sellers. Amazon now lists the platinum_keywords attribute as “No longer used” and “redundant”: it isn’t indexed by search and isn’t used by browse. The keyword field that still counts is Search Terms (generic_keywords), which Amazon’s keyword attributes page caps at 249 bytes.
You opened a listing in Seller Central or a category template, saw a field called Platinum Keywords, and wondered whether you’re missing something. You aren’t.
This guide explains what Amazon Platinum Keywords were, why they no longer do anything, which keyword fields Amazon still reads, and how to fill in the one that matters.
About the Author: Gloria Anderson writes for the SellerSonar editorial team about Amazon listings and search. She checks every Amazon rule in her articles against Seller Central help, and the ranking examples against keywords we track in SellerSonar.
What Are Amazon Platinum Keywords?
Amazon Platinum Keywords were a set of keyword fields for sellers in Amazon’s old Platinum program. According to Amazon’s own description, they were “previously used to populate platinum sellers storefronts”: they told Amazon where a product belonged inside those sellers’ storefront pages.
In other words, they were never about Amazon search. They organized products inside a seller’s storefront. That job now belongs to Brand Stores, which any brand in Brand Registry can build. Our guide on how to open an Amazon storefront covers how they work today.
Amazon doesn’t publish details of the old Platinum program anymore, and you can’t apply to become a Platinum seller in 2026.
Do Platinum Keywords Still Work in 2026?
No. Amazon’s help page on keyword attributes is direct about it: “You don’t have to populate platinum_keywords as they are now redundant.” In its table of keyword fields, Platinum Keywords is marked as not indexed by search and not used by browse.
So whatever you type into the field, shoppers won’t find your product by it, and it won’t change where the product sits in Amazon’s categories. If the field still shows up in an old template, you can leave it blank.
💡 Expert Tip: If you inherited a catalog with words stuffed into the Platinum Keywords field, don’t delete them in a hurry, and don’t copy them anywhere either. Check each word against your listing first. If it’s a real search term shoppers use, it belongs in Search Terms or your title, not in a dead field.
Platinum Keyword Myths That Still Circulate
Older guides, including an earlier version of this one, repeat advice that Amazon’s current help pages contradict. Here are the ones we see most:
- “Fill in Platinum Keywords anyway, it can’t hurt.” It can’t help either. Amazon marks the field as not indexed by search and not used by browse, so the time is better spent on Search Terms.
- “The search terms limit includes spaces and punctuation.” It doesn’t. Amazon says it doesn’t count spaces or punctuation when it measures search terms.
- “Separate keywords with commas or semicolons.” Amazon recommends separating words with spaces and avoiding punctuation marks such as semicolons, colons and dashes.
- “Fill every keyword field you can find.” Intended Use, Target Audience and Other Attributes are being phased out, and two of them aren’t indexed by search at all. Subject Matter only accepts the values in your category’s Browse Tree Guide.
- “Edit keywords under Inventory, Manage Inventory.” The current path is Manage Products, then Fix, then Edit, then the Product details tab.
- “Put your competitors’ brand names in the backend.” Brand names are on Amazon’s prohibited list, and breaking those rules may get the ASIN suppressed.
If your listings were set up years ago, these are worth a quick audit. Old templates often carry dead fields and comma-separated keyword lists.
Which Keyword Fields Amazon Still Reads
Amazon’s keyword attributes page lists every keyword field, with its byte limit and whether search and browse use it. Here’s the current state, as of October 2026:
| Field (attribute) | Status | Limit | Indexed by search | Used by browse |
|---|---|---|---|---|
| Search Terms (generic_keywords) | Active, free text | 249 bytes | Yes | Yes |
| Item Type Keywords (item_type_keyword) | Active, valid values only | 250 bytes | Yes | Yes |
| Subject Matter (thesaurus_subject_keywords) | Active, valid values only | 250 bytes | Yes | Yes |
| Style-specific Terms (style_keywords) | Active, apparel, valid values only | 100 bytes | Yes | Yes |
| Subject Keywords (subject_keywords) | Active, media products only | 210 bytes | Yes (media only) | Yes |
| Intended Use (specific_uses_keywords) | Being phased out | 150 bytes | Yes | Yes |
| Target Audience (target_audience_keywords) | Being phased out | N/A | No | Yes |
| Other Attributes (thesaurus_attribute_keywords) | Being phased out | N/A | No | Yes |
| Platinum Keywords (platinum_keywords) | Phased out, “redundant” | N/A | No | No |
“Valid values only” means you pick from the values listed in Amazon’s Browse Tree Guides for your category, rather than typing free text. For most sellers, the only free-text keyword field worth your time is Search Terms.
How to Add Backend Keywords on Amazon?
Backend keywords, or search terms, are words you want Amazon to match your product to that don’t fit naturally in the title or bullets. Amazon’s help page on using search terms effectively gives the current steps:
- In Seller Central, go to Manage Products.
- Select the product, and from the Fix menu, click Edit.
- Open the Product details tab and enter your words in the Generic keyword field.
The rules that matter, all from Amazon’s help pages:
- Stay under the limit. The field holds 249 bytes, and Seller Central stops accepting input when you reach it. In English, one letter or number is one byte; characters like German umlauts take two or more.
- Spaces and punctuation don’t count toward the limit. Separate words with spaces and skip commas, semicolons and dashes.
- Add what the listing doesn’t already say: synonyms, spelling variations and abbreviations. Skip common misspellings, repeated words and short words like “a”, “the” or “for”.
- Use lowercase, and either the singular or the plural, not both.
Some words are prohibited outright. Amazon warns that using them “may result in your ASIN being suppressed”: brand names (yours or anyone else’s), ASINs, profanity, temporary words like “new” or “on sale”, and subjective claims like “best” or “cheapest”.
Our full guide to Amazon backend keywords goes deeper on what to put in the field and how indexing works.
How to Come up with Keywords for Product Listings?
The words worth adding are the ones real shoppers type. A few reliable sources:
- Amazon’s search bar. Type the start of your product name and note the suggestions.
- Your ad reports. The search term report shows the exact phrases shoppers used before clicking your ads.
- Brand Analytics. If you’re in Brand Registry, the Search Query Performance dashboard shows which queries led shoppers to your products.
- Competitor listings. Read the titles and bullets of products that rank well for your main term.
Our guide to Amazon keyword research walks through each of these in detail.
How to Check That Amazon Matches Your Keywords
Filling in a field proves nothing. What matters is whether Amazon shows your product for the term, and where. Search the term on Amazon and look for your product. To see it over time, track the keyword.
Here’s a real example from keywords we track in SellerSonar.
The Sterilite 4 Shelf Cabinet (ASIN B01H48094C, amazon.com) has the title “Sterilite 4 Shelf Cabinet, Lockable Utility Storage, Gray”. Neither its title nor its bullets use the words “plastic” or “door”. Yet per SellerSonar data, it ranked #1 for “plastic storage cabinet with doors” in every check from October 16 to 25, 2026, with the Amazon’s Choice badge for that keyword.
Meanwhile “lockable storage cabinet”, a phrase that is in its title, slid from #4 to #9 over the same days. Matching a term and ranking well for it are two different things.
A tracker can tell you that Amazon matches your product to a term. It can’t tell you which field did it: the match could come from search terms, A+ content or product attributes.
That’s why the test is simple. Add the terms you put in Search Terms to SellerSonar’s keyword monitoring, and watch whether your product shows up for them. A “Keyword lost in search” alert tells you when a term stops returning your product. Our guide to the Amazon keyword rank tracker covers the setup.
🎯 Pro Insight: Change one thing at a time. If you edit the title, the bullets and the search terms on the same day, you won’t know which change moved your rank.
Amazon Platinum Keywords: Final Thoughts
Amazon Platinum Keywords belong to an old Amazon program, and Amazon itself calls the field redundant. Leave it blank, put your effort into the Search Terms field and your visible listing copy, and measure whether Amazon actually shows your product for the words you chose.
Final Expert Recommendations: Spend your 249 bytes on synonyms and phrasings your title doesn’t cover, keep brand names and subjective claims out, and track the terms you add. If a product isn’t found for a term after a few days, the field didn’t do its job, and the word may belong in the title instead.
If you’d like to see where your products rank for the words you chose, try SellerSonar free: 14 days free, 5 ASINs, 10 keywords, no credit card.
