Amazon backend search terms

Backend search terms are the generic keywords on an Amazon listing. Shoppers do not see them. Search can use them. They are not a second title, and they are not a place to hide another brand’s name.

The visible argument, the title and the bullets, is the listing essay. This essay is only the hidden field: what to put in it, what Amazon has said not to put in it, and how to tell when the field is full.

The limit

Amazon staff, pointing at Seller Central help, describe the generic keyword field as limited by bytes, not by a character counter you invent in a spreadsheet. For ordinary English letters and digits, one byte is one character. Accented and other complex characters can take more than one byte. The field stops accepting input when the byte limit is reached. That stop is the control. Do not paste a longer string through a feed and assume the extra words are stored.

The figure those Amazon posts cite for the US and for most other stores is 250 bytes. A 2019 notice about the product feed said the same order of magnitude: less than 250 bytes for marketplaces other than specific Japan exceptions, and warned that exceeding the limit could keep the whole field from being indexed. Treat 250 bytes as the published US limit, and treat the listing form as the authority if Amazon changes the field. We will not give you a “safe” 200-character version as if it were a rule. Fill the field until it stops, with words that earn the space.

What Amazon’s own tips say to include

Amazon’s search-term guidance, repeated in its seller-forum tips, is practical.

• Generic words a customer would type when they do not yet know your brand.
• Spelling variants that are real alternate spellings. Not deliberate misspellings. Amazon says its systems already handle common misspellings.
• Spaces between words. No semicolons, commas, or hyphens as a separator. Punctuation wastes bytes and is unnecessary.
• No repeated words. If “soap” is in the field once, a second “soap” does not buy a second index.
• No stop words you would skip in a search box: a, an, and, by, for, of, the, with.
• Nothing already carried by the title, the brand, or other attributes. Amazon says repeating them does not improve placement.

Write the words a shopper uses for the product type, the material, the scent family, the use, the size convention. “Marseille soap,” “olive oil soap,” “bath bar” are search terms if they are true and they are not already spent in the title. “Best,” “free shipping,” and “number one” are not search terms. They are claims, and they waste the only 250 bytes you have.

What does not belong there

Another company’s trademark. The field is for words that describe your product. A competitor’s brand name is their trademark. It is also a good way to collect an intellectual-property complaint and a bad way to be found by the right customer. Do not do it. The account consequences of policy complaints are in the suspension essay.

ASINs, promotional phrases, and subjective praise. They are not how a stranger searches, and several of them violate listing rules you can read in the style guide for the product type. The title rules are in the listing essay. The hidden field is not a workaround.

Words that describe a different product. A soap brand that adds “detergent” because the search volume is larger will win the wrong click and the wrong return. Search terms are relevance. Relevance to the wrong product is a return.

A translation of the entire home-market listing. Translate the words a US shopper types. Leave the rest. A bilingual dump hits the byte limit on words no one in this store searches.

How to choose the words

Start from searches you have evidence for, in this order.

1. The search-term report from your own ads, for queries that converted and are not already in the title. Those are customers, not a keyword tool’s guess. How that report sits next to ACoS is the ACoS essay.
2. The words in your reviews and questions. If buyers call it a “guest soap” and your title says “vegetable cleansing bar,” the backend is where “guest soap” can live, if it is accurate.
3. Only then a research list. Add a term if you can say what on the product makes it true. If you cannot, it is a stuff.

When the field is full, cut the vaguest word, not the most specific. “Gift” is almost never the word that should survive. The material, the form, and the use are.

Then leave it. Rewriting backend terms every week does not compound. Fixing a title that hides the product type does. If the ASIN is not found for its own name, the problem is not this field. It is the brand, the title, or the fact that you are out of stock. The offer has to be featured and available: Featured Offer.

Attributes that are not “backend keywords”

Category-specific fields, material, scent, unit count, are attributes. Fill them because they are true, and because Amazon uses them for filters. Do not paste those same words again into generic keywords and call it optimization. Amazon has already told you that repetition does not help.

A+ Content and the Brand Store are not indexed as a substitute for the title. They require Brand Registry. They persuade. They do not replace the 250 bytes. The story work is the story essay. The enrollment is the Registry essay.

Questions

Can we see our competitors’ backend terms?

Not as a report Amazon gives you. Tools that claim to extract them are showing you an inference. Write from your own converting queries and from the words on your product. Do not build the field by copying a scraper.

Do backend terms affect the Featured Offer?

Amazon’s published featured-offer factors are price, delivery, stock, and order experience. Search terms help a shopper find the page. They do not set the price, and they do not choose the offer. Keep the jobs separate.

We sell in more than one language. Which words go in the US field?

Words a US shopper types in English, plus a foreign word only when that is what the US buyer actually searches. A full paste of the home-market keyword file will overflow the byte limit and bury the useful terms. The US listing is a US argument. The market-entry essay is the larger version of that sentence.

Sources

• Amazon staff on the generic keyword byte limit. The field stops at the byte limit. One byte per basic English letter or digit.
• Amazon’s search-term tips. 250 bytes, spaces not punctuation, no repeated words, no stop words, do not repeat the title and brand.
• 2019 Search Terms feed change. The historical limit, and the warning that an over-length field may not be indexed.
• Featured Offer. What actually decides the offer, so this field is not asked to do that job.

Book a strategy call

If the titles are vague and the backend field is a dump from another country, send a brief or Book a strategy call.