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Amazon listing SEO, field by field

Amazon matches a shopper's search against the information in your listing. This section explains what each field does for search, the limits Amazon sets on it today, and how to write it, with every rule linked to Amazon's own help pages.

Limits last verified in Seller Central help: September 2026

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How Amazon search reads a listing

The listing tier of the Shelfcrest crest: parcels carrying clean printed labels as they move along the shelf
Tier 02 of 05 · this section

Amazon's help page on product discoverability puts it simply: customers can only buy products they can find, and one way they find them is by searching with keywords that are matched against the information you provide, such as the title and description. Listing SEO is the work of making sure the words shoppers use are in the fields Amazon reads, within the limits it sets.

Two things follow from that. First, a word that appears nowhere in the listing cannot be matched lexically, however relevant the product is. Second, being matched is not the same as ranking well. Amazon does not publish a full list of ranking factors, and its help pages say it may not use all supplied content for search, for reasons that include relevance and potential manipulation of results.

So listing SEO has two jobs that pull in different directions. The listing must contain the right words for matching, and it must read well enough to convert the shoppers who click, because a listing that gets clicks without orders wastes the traffic it earns.

Every listing field that matters for search, and its current limit

Which listing fields Amazon reads and the limit on each: title 75 characters, five bullet points, a description set by product type, 249 bytes of search terms, a 250 byte item type keyword, and a main image of 500 pixels or more. what shoppers see Main image500 px minimum Title75 characters Bullet pointsup to five shown Product description read by search, not shown Search terms249 bytes, no repeats Item type keyword250 bytes both feed matching only
Which fields shoppers see, which ones only search reads, and the limit on each
FieldSeen by shoppersLimitWhat Amazon says about it
Title (Item name)Yes, in search results and on the page75 characters including spacesThe same word no more than twice; no promotional phrases; brand first in the recommended order
Bullet pointsYes, on the product pageUp to five shown; character limit varies by product typeAt least three recommended; a short header with a colon; avoid repeating the title; no unverifiable performance or comparative claims
Product descriptionYes, below the bulletsSet by product typeElaborates on uses, benefits and specifications
Search terms (Generic keyword)No249 bytes; spaces and punctuation not countedSynonyms, spelling variations, abbreviations; no brands, ASINs, temporary or subjective words; the whole field is ignored if over the limit
Item type keywordNo250 bytes; values from Browse Tree GuidesPlaces the product in the right browse node, which affects discovery by browsing and search
Main imageYes, the first thing in results500 pixels minimum; 1,000 or more enables zoomProduct fills 85 percent of the image on a pure white background

Rules differ for media products and some stores. The limits above apply to the US store and were read on the date at the top of this page.

The 75 character title changed how listings are written

A ruler of 75 characters: a compliant title of 63 characters fits inside the limit, a longer title crosses it and can be corrected automatically or left out of search results. 075 characters 63 characters, fits longer title, the part past the limit corrected or left out of results
The title limit, and what happens past it

Titles used to allow far more room than they do now. Amazon's current title requirements cap new product titles at 75 characters including spaces, and explain the reason in the guidance itself: mobile screens truncate long titles. Titles that do not comply can be corrected automatically or left out of search results.

With less room in the title, the other fields carry more of the search work. Synonyms and alternate names move to the backend search terms. Features and uses that no longer fit in the title move to the bullets, each with its own header. The title keeps what a shopper needs to recognize the product at a glance: brand, product type, the attribute that matters most, and size or count.

Illustrative example

Insulated Stainless Steel Water Bottle with Straw Lid, 32 Ounce

63 characters. No word used more than twice, no promotional phrase, and room left for the brand name at the front. Words such as thermos, canteen, gym or hiking go to the search terms field instead.

The order to work on a listing

The order of work: research collects the searches, the keyword map sends each term to one field, then title, bullets and search terms are written, and the result is measured. ResearchKeyword map TitleBulletsSearch terms Measure: sessions, conversion, terms with orders searches shoppers useone term, one field
Research, map, write, measure

  1. Keyword research

    Collect the searches that describe the product, from the search term report of your ad campaigns, Amazon's search bar suggestions, and the words customers use in reviews and questions.

  2. Keyword map

    Assign each term to one field: the few that define the product to the title, features and uses to the bullets, synonyms and alternate names to the search terms.

  3. Title

    Write it within 75 characters in Amazon's recommended order, and check no word appears more than twice.

  4. Bullets

    At least three, each with a header, each adding something the title does not say.

  5. Search terms

    Fill the Generic keyword field with what is left, counting bytes and repeating nothing from the title.

  6. Images and A+ content

    A compliant main image, then images that answer the questions shoppers ask, and A+ content if the brand is registered.

  7. Measure

    Compare sessions, conversion rate and the search terms that bring orders, before and after, over the same number of weeks.

How to tell whether listing SEO worked

Rank for a single keyword can move from day to day and says little on its own. Three numbers from Seller Central tell a clearer story when compared over the same period before and after a change:

The growth tier of the crest: the parcel stream thinned into one clean line along the shelf
NumberWhere it isWhat a change means
SessionsBusiness Reports, by ASINMore visits means the listing is being found or clicked more
Unit Session PercentageBusiness Reports, by ASINThe listing's conversion measure in Business Reports; a rise means more visits end in an order
Search terms with ordersSponsored Products search term reportWhich shopper searches now convert, and which new ones appear

Change one field at a time where possible, and wait long enough for Amazon to process the update before judging it. Amazon's title guidance says to allow 24 to 48 hours for title changes to appear.

Amazon listing SEO guides

Search basics

Writing the listing

Keyword research

Brand and catalog

Sources first, then the example

  • Rules come from Amazon. Every limit, requirement and prohibited term is taken from Seller Central help and linked, with the date it was last read.
  • Examples are marked. Worked examples use illustrative products and say so. No client data appears in a guide.
  • Dated, and revisited. Amazon changes listing rules and fees. Each guide shows when it was last verified, and fee and policy pages are reviewed at least once a year.
  • Corrections are public. If a guide is found to be wrong, it is fixed and the change is noted at the bottom of the page.

Amazon listing SEO FAQ

The audit tier of the crest: parcels being scanned as they pass along the shelf
  • What is Amazon listing SEO?

    The work of putting the words shoppers search for into the listing fields Amazon reads, within Amazon's limits, while keeping the listing clear enough to convert the shoppers who click.

  • What is the title character limit on Amazon?

    Amazon's current requirements cap product titles at 75 characters including spaces, for most product types in most stores. Media products and a few stores are excepted.

  • How many bytes are allowed in Amazon search terms?

    249 bytes in the Generic keyword field. Spaces and punctuation are not counted, and the whole field is ignored if it is over the limit.

  • Are bullet points indexed for search?

    Amazon's help pages say bullet points can increase discoverability, and also that Amazon may not use all supplied content for search.

  • Should keywords be repeated across fields?

    No. Amazon's guidance is to avoid repetition in search terms and to minimize duplication between bullets and the title. A word already in the title does not need to appear again.

  • How long do listing changes take to show?

    Amazon's title guidance says to allow 24 to 48 hours for title and item highlight changes to be processed and displayed.

  • Does the main image affect search?

    It affects whether shoppers click, which is the step between being shown and being bought. Amazon requires the product to fill 85 percent of the image on a pure white background.

  • Is Amazon SEO the same as Google SEO?

    No. Amazon search matches shopper queries against product listing data inside one store. Google ranks web pages across the whole web, with its own signals and its own guidelines.

  • How often should a listing be updated?

    When new converting search terms appear in ad reports, when Amazon changes a requirement, or when reviews show shoppers asking a question the listing does not answer.

  • Can I optimize a listing without Brand Registry?

    Yes, the title, bullets, description, search terms and images are available to any seller who can edit the listing. A+ content and a Brand Store require Brand Registry.

Sources