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Solutions · Duplicate listings

Pages built on your product, by people you never appointed.

Listings created on your references without your copy, your images or your control — flagged the day they appear.

Book a demo Get a free audit of your listings

Why it matters

A second page for one product splits everything.

Marketplaces reward one strong page per product. A duplicate takes your reviews, your search ranking and your traffic and divides them in two — and the half you do not control has whatever photography, description and specification whoever made it felt like using. It has its own buy box, and you are not in it.

Duplicate detection was built with a client whose team kept finding pages nobody at the brand had created.

Diagram: one product's reviews, ranking and traffic split across two pages, the second built by a seller you never appointed.

How the revenue leaks

Two pages, half the strength, none of the control.

The damage is structural rather than a single lost sale, which is what makes it so slow to notice.

Most marketplaces will merge or remove a duplicate once it is evidenced. The hard part is finding it.

Diagram: the four stages by which this problem turns into lost revenue.

What we report

What we flag on each duplicate.

Enough to raise a merge or takedown with the marketplace.

The page, and the reference it copies

Matched to your catalogue on title and SKU.

Uncertain matches are flagged, never merged silently.

Who created it

The seller holding the box on the duplicate page.

Which is nearly always the seller who built it.

When it appeared

First seen, so you can act before it accumulates reviews.

A duplicate is far easier to remove in week one than in year one.

The matched catalogue in Merqi, every reference against every listing found for it

In the platform

The matched catalogue.

Every reference against every listing found for it — including the ones you did not create.

How the data is produced

Platform shown through the H.Koenig account, with H.Koenig's permission, for data demonstration purposes.

Related

The same scan, asked differently.

Nothing here is a separate product or a separate fee.

Rogue sellers Whoever built the page is selling stock they got from somewhere. Rogue sellers Buy-box recovery A duplicate page has its own buy box, and it is not yours. Buy-box recovery A sample report How duplicates appear in the monthly document. See a sample report

Twenty minutes is usually enough to know.

Twenty minutes on what is happening across your retailers. Or start with a free audit of a handful of your own listings — completely free, and back with you within two days.

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Merqi
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Somebody else is setting your price on six retailers.

Merqi is the enterprise platform that tracks who sells your products, who holds the buy box, and at what price — across the retailers and marketplaces you actually sell through.

Retailers monitored

The problem

Right now, a seller you never appointed a reseller with your stock a marketplace trader an account you cannot name somebody undercutting you is costing you revenue and losing you customers.

They win the sale on a listing you built, to a customer who believes they bought from you. If that order arrives late, damaged or grey-market, you lose a customer and the revenue both — and neither ever appeared in your channel to begin with.

Undercutting is only the visible half. The rest of the damage never announces itself.

And it is never just one thing

Seven ways your distribution leaks.

A lost buy box is the one you can see. Merqi reads all seven on the same scan, so the damage you have not noticed shows up beside the damage you have.

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What it costs you

Why one row matters

Four in five sales never see a second seller.

The featured offer is not a ranking, it is the default. The other sellers sit behind a link most shoppers never open, and on mobile they are not on screen at all. So when someone else holds the box on your listing, the page still converts — for them, on your product, at a price you did not set.

What a lost box actually costs

The size of the prize

10–30%+

revenue our clients can recover

The margin is already yours. Somebody else is taking it.

Every buy box lost to an unauthorised seller is a sale made at a price you did not set, on a listing you paid to build. Recovering those listings, closing the coverage gaps and holding distributors to their terms is where the range above comes from.

See what one scan cycle found

Indicative range. What Merqi recovers for your catalogue depends on how many of your listings are contested and how far price has drifted — the first report tells you which.

How it works

Three workflows, one ledger.

Every finding starts as a row in the same scan. What changes is the question you bring to it.

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Platform shown through the H.Koenig account, with H.Koenig's permission, for data demonstration purposes.

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What you get

Everything happening on other people's shelves.

The first two are what most brands come for. The rest is what they did not know they were missing — and the platform they read it all in.

See everything the platform reads

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On one client account, Merqi reads 4,196 listings across 78 active retailers every day and names every seller holding a box that should have been theirs. Catalogues are unlimited — this is one brand’s shelf, not our ceiling.

July 2026 monitoring cycle, as of 31 July. Platform shown through the H.Koenig account, with H.Koenig's permission, for data demonstration purposes.

Case study and research

What the scans keep turning up.

One client's ledger, and the two questions every brand asks once they have seen it.

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Platform shown through the H.Koenig account, with H.Koenig's permission, for data demonstration purposes.

Go deeper

The rest of it, in detail.

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The monthly newsletter.

The latest intel on how buy boxes are set, new legislation across the jurisdictions we cover, how to enforce MAP legally, and breakdowns on dealing with rogue sellers — and how to approach each of them using the right ecommerce intelligence.

We’ll use your details to respond to this request. See our Privacy Notice.

Twenty minutes on your shelves. Then decide.

Twenty minutes is usually enough to tell whether Merqi has anything to say about your shelves. Or send us a handful of listings first and we will scan them, completely free, with the findings back inside two days.
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No sheets in this export yet.

A workbook is generated at the end of each scan cycle. The first one appears here once your first scan completes.

Get a free audit of your listings

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We’ll use your details to respond to this request. See our Privacy Notice.

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Buy-box hold rate

Alerts by kind, by week

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Twenty minutes is usually enough to know.

Twenty minutes on what is happening across your retailers. Or start with a free audit of a handful of your own listings — completely free, and back with you within two days.
Book a demo