Amazon listing SEO in 2026: what is actually indexed

The product title, up to 75 characters including spaces outside media categories, is the strongest single field and the one buyers read first.

Item Highlights, up to 125 characters, is searchable and separate from the title. It absorbs the detail the 75-character cap pushed out.

The five bullet points carry conversion weight and are read by Amazon’s AI layer, so they should describe the product, not shout about it.

Backend search terms are limited by bytes, not characters: 249 bytes on the EU marketplaces and on amazon.com. Accented and non-Latin characters cost more than one byte each, which is why a field that looks short can already be full.

A+ content is not indexed by Amazon search. It earns conversions, never keyword coverage, and time spent stuffing keywords into A+ modules is time wasted.

Repeating a word already present in the title inside the backend search terms adds nothing: the index deduplicates. Every repeated term is bytes you could have spent on a query you do not rank for yet.

Competitor brand names in backend terms are a policy violation, not a growth tactic.

Over-length titles are progressively replaced with Amazon’s own AI wording. Brand owners get 14 days in Review Listing Changes to accept or edit the machine’s version, and the clock runs per listing, not per account.

On catalogues audited in September 2026 the great majority of titles were still over the cap, which means the rewrite queue, not the seller, is choosing the words buyers see.

Amazon also removes the brand name from the displayed title when the brand already appears in the byline, so opening a title with your own brand can cost characters and return nothing.

A title that works on amazon.fr is not a title that works on amazon.de. Search demand is structured differently per country: in some markets buyers search by compatible brand or operator, in others by length, size or connector type.

Translating a title from one marketplace to another carries the source market’s demand structure with it, which is how a listing ends up optimised for a query nobody types in that country.

Amazon’s own autocomplete is a free, per-country source of truth for this and costs nothing to consult before you rewrite anything.

Score the fields against the limits in force today rather than the ones you remember, then fix in order of what the score loses most: title first, then bullets and Item Highlights, then backend bytes, then images.

Re-check after Amazon has processed the change. A submitted title and a displayed title are not the same thing, and the difference is where the rewrite queue shows up.