How to Run an Amazon Keyword Gap Analysis (Step-by-Step)

Your listing can be beautifully written and still invisible. If a keyword with real demand doesn't appear anywhere in your listing or your ad targeting, Amazon has no reason to show you for it — and shoppers can't buy what they never see.

A keyword gap analysis finds exactly that: search terms your closest competitors rank for that you don't. Here's the process we run, step by step.

Step 1: Pick true competitors

Choose three to five ASINs a shopper would actually buy instead of yours — same use case, comparable price band, similar review depth. The analysis is only as good as this list. A premium product "competing" against budget alternatives will surface gap keywords full of buyers who were never yours.

Step 2: Pull everyone's keyword footprint

Run a reverse-ASIN lookup on your listing and each competitor. You want, per keyword: who ranks, at what position, and roughly how much search volume it carries. Export everything — the filtering comes next.

Step 3: Isolate the gap

The gap list is every keyword where at least two competitors rank in the top 20–30 positions and you rank nowhere (or beyond page two). Requiring two competitors filters out one-off flukes and their branded terms.

Then apply the honesty filter: delete keywords that don't genuinely describe your product. Ranking for a keyword that mismatches your product buys you clicks, returns, and review damage.

Step 4: Prioritize by revenue, not volume

Score what's left on three axes: relevance (would this shopper be satisfied by your product?), volume (is there real demand?), and winnability (are the ranking listings beatable on reviews, price, or content?). A 2,000-search keyword you can win beats a 40,000-search keyword owned by a category giant.

Step 5: Close the gap — content first, then ads

Indexing comes before ranking. Work priority keywords into the title (highest weight), bullets, and backend search terms. Only once you're indexed does PPC support make sense: launch exact-match campaigns on the priority gap keywords with bids derived from your break-even ACoS, and let sales history pull your organic position up.

Step 6: Re-run quarterly

Competitor sets change, seasons shift search language, and new entrants create new gaps. We refresh competitor keyword data continuously across the brands we manage — the drift over a single quarter routinely surprises founders. Put the re-run on the calendar.

The output of a good gap analysis isn't a spreadsheet. It's a short, prioritized list of keywords with an owner, a listing change, and a campaign attached to each. That's the difference between research and revenue.