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Is it your ads, or your listing?

High ACOS looks like a bidding problem in every ads report ever written. Sometimes it is. Sometimes you are paying to send traffic to a page that cannot close, and no bid fixes that. Two files tell them apart.

TWO FILES, ONE ANSWER

Is the problem your ads, or the page they land on?

A 62% ACOS looks like a bidding problem in every ads report ever written. If the page converts at a third of what the rest of your catalogue does, no bid fixes it — you are paying to send traffic somewhere that cannot close. Ad data alone cannot tell those apart. These two files can.

1 · Business report Seller Central → Reports → Business Reports → Detail Page Sales and Traffic by Child ASIN · .csv
2 · Advertised product report Advertising → Sponsored Products → Advertised product report · .csv

Both files are read in your browser and never uploaded. There is no sign-up. Close the tab and nothing of yours remains.

THE VERDICT

LISTING PROBLEM
—
TARGETING
—
BIDS
—
ROOM TO SCALE
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Your number above is yours - nothing was sent anywhere. If it would help, I'll email the four reports an audit runs on and the read-only access steps, so you can see the same thing across your whole catalogue.

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Why this is the question that decides the month

An ACOS of 62% has at least four different causes and they need opposite responses. Cut bids on a page that converts well and you throttle a winner. Rewrite a listing whose page conversion is already strong and you have spent a fortnight on the wrong thing. The reason sellers get this wrong is not carelessness — it is that the ads report, which is the file everyone looks at, genuinely cannot distinguish them.

The thresholds here are the ones we use on client accounts: 100 sessions before a conversion rate is worth reading, 30 ad clicks before an ad conversion rate is, and a page judged weak below 60% of the account's own median. They are working thresholds, not laws — what to do about a weak page is a longer subject than a threshold.

If the answer comes back BIDS, the wasted-spend checker is the next file to run, and the revenue calculator will tell you what a click on that product can actually be worth.

Questions people actually ask

Because one file cannot answer the question. An advertising report tells you what your ads did; it says nothing about how the page performs for everyone else who lands on it. A business report gives you sessions and conversion rate for all traffic. Crossing the two is what separates a page that cannot close from ads that are bringing the wrong people, and no ads report on its own can tell those apart.
Your own. The reference is the median conversion rate across your ASINs with at least 100 sessions, taken from the file you dropped in. There is no honest universal figure for a good Amazon conversion rate - it varies enormously by category and price - so inventing one would decide the verdict on a number we made up. If your whole catalogue converts poorly, this tool will say the ads look fine, and it is right to: the comparison it can defend is your listings against each other.
LISTING means both ad clicks and ordinary sessions convert poorly, so the page is the constraint and bidding cannot fix it. TARGETING means the page closes fine but ad clicks convert far worse than its own traffic, so the ads are bringing the wrong searches. BIDS means both convert acceptably and the ACOS is genuinely a bidding question - the only one of the four that bid changes fix. SCALE means it converts well on relatively little spend, which is where more budget belongs.
Anything with fewer than 100 sessions or fewer than 30 ad clicks is left out and counted separately, because a conversion rate built on a handful of clicks is noise. Judging a listing on eleven sessions produces a confident-looking verdict that would reverse next week. The tool tells you how many it skipped rather than quietly shortening the list.
No. Both files are read in your browser and never sent. There is no sign-up and no email gate on the result. A business report carries revenue for every ASIN you sell, which is exactly the file a seller should not be handing to an agency they have not hired - so we built it so you do not have to.
Stop bid-optimising that ASIN first, because that is the expensive mistake. Then work the page: main image, title, the first two bullets, and whether the price is credible against what ranks around it. Conversion work is a different discipline from bidding, and the point of the verdict is to stop you spending another month on the wrong one.