Reseller MonitoringKnow every seller.
Own your distribution.

Altosight's reseller monitoring finds every seller of your products, classifies each one against your authorized list, and flags what's off.

Setup in days, not months · Unlimited countries & currencies · GDPR-compliant
Seller map — live discovery
DealHubPro amazon.com storefront · first seen today · 3 of your SKUs
$47.99
Unauthorized
PrimeOutlet24 amazon.de · stock from outside your DE network
€44.90
Gray market · review
Alpine Sports Shop Kestrel Trading LLC · rep: M. Torres · 12 SKUs live
$49.99
Authorized
New seller detected · BargainBase
walmart.com · matched to 5 products · evidence saved
Authorize Flag →
34
Sellers mapped
6
Unauthorized flagged
28
Authorized sellers
Marketplaces, Google Shopping & the web, per country
Unauthorized and gray-market sellers flagged on day one
14-day free trial · full product access · no credit card
Live in 1–5 days
·
Free API access included
·
Products auto-found — AI + human verified
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No long-term contracts
·
Serving brands worldwide
The Basics

What is reseller monitoring?

Reseller monitoring builds the complete map of who sells your products: every seller, every channel, every country.

It's the step before compliance: discovery.

Altosight matches the products themselves, by name, image, and attributes. A storefront can't hide behind a reworded title or a missing barcode.

Teams also call it reseller price monitoring. Every seller arrives with prices and stock attached.

The first scan usually redraws the map: new storefronts, stock in unexpected countries, a distributor's inventory moving sideways.

After that, the registry maintains itself. Brand protection you can operate, not just report on.

Key distinction

MAP monitoring asks: are my sellers compliant? Reseller monitoring asks: who are my sellers? You need both. Altosight runs both on one platform.

01
Your catalog in
Products uploaded once. Identifiers optional.
02
Channels scanned
Marketplaces at full seller depth, Google Shopping per country, and the web.
03
Seller registry built
Every discovered seller recorded with identity, listings, prices, and first-seen date.
04
Unknowns flagged
Sellers outside your authorized list surface immediately, with evidence.
05
Enforcement ready
Violations and unauthorized activity flow straight into outreach from your own domain.
Why It Matters

Distribution leaks don't announce themselves

Sellers who profit from invisibility pick the channel and storefront name you're not watching. Here's what a complete seller map changes.

01 Months of quiet damage

New sellers appear silently

A marketplace storefront starts listing your hero SKU on a Tuesday. Nobody tells you. Your first signal, months later, is an angry email from an authorized retailer asking why they're being undercut.
02 Country-blind = blind

Gray market hides in geography

Stock sold into one market resurfaces in another. Different currency, different price logic, same brand damage. Country-blind monitoring never sees the pattern.
03 Reincarnation is cheap

Marketplace anonymity is a strategy

Serial violators know a storefront name costs nothing. Without identity tracking and history, every reincarnation gets treated as a first offense.
04 Your map is fiction

Authorized networks erode invisibly

Your dealer map from January is fiction by June. Sellers added, dropped, renamed. Enforcing against an outdated map means false accusations and missed offenders at the same time.

How the options compare

 
Manual Searching
MAP-Only Tools
With Altosight
Seller discovery
Occasional Google sessions
Only sellers you already listed
Continuous — marketplaces, Google Shopping & the web
Marketplace depth
Storefronts you happen to click
Often featured-offer only
Every seller per listing, with identity
New-seller detection
Months late, by accident
Not the job
Flagged on first appearance, with evidence
Authorized-list comparison
A spreadsheet somebody owns
Manual cross-referencing
Built in — known, new, and unauthorized clearly separated
Path to action
Draft an email, hope
Detection without workflow
Enforcement outreach from your own domain, history attached
Monthly cost
Hours that never actually happen
From ~$99/mo, discovery extra or absent
From $49/month — matching, MAP & free API included

See who's really selling your products — today

Start the free 14-day trial and watch the seller map build itself on your catalog. Or book a 10-minute call for a walkthrough and a custom quote.

Trial: no credit card · Call: reply within 24h
Evaluation Criteria

Key features to look for in reseller monitoring

Unauthorized seller detection should produce identity, classification, and evidence. Not just a longer list of storefront names. Here's what to demand.

Multi-channel discovery

Marketplaces at full seller depth. Google Shopping per country. Retail websites. Leaks pick the channel you're not watching.

Seller identity, memory — and your fields

Storefront names and public details captured where available, history tracked over time. Plus three custom fields per seller: business name, assigned rep, CRM code, or anything your workflow needs. If the business behind a storefront isn't public, add it once and it's saved.

Authorized-list workflows

Load your authorized resellers once. Every discovered seller is auto-classified: authorized, new, or unauthorized. Your team reviews exceptions, not name dumps.

First-seen alerts

The day a new seller appears on your products, you know. Listing, price, and channel attached. Weeks of quiet damage, prevented.

Geographic pattern visibility

Sellers and prices per country, in local currency. The view where gray-market patterns become obvious instead of anecdotal.

Evidence that feeds enforcement

Every discovery is a timestamped record. When outreach time comes, the file is already built: identity, listings, price history, prior notices. Brand protection with receipts.

The Process

How Altosight's reseller monitoring works

From a product list to a living seller map. Discovery, classification, and evidence run automatically.

01

Upload catalog & authorized list

Products plus the resellers you recognize — the baseline map.

02

Discovery scans run

Marketplace listings with all sellers, Google Shopping per country, and the web. Matched to your catalog at 99.9%+ accuracy.

03

The registry builds itself

Every seller recorded with identity, listings, prices, and history, classified against your authorized list.

04

Unknowns surface immediately

New and unauthorized sellers flagged with evidence the day they appear.

05

You act with leverage

Outreach from your own domain, escalation with full history. Or a quiet call to the distributor whose stock is leaking.

What Clients Say

Real results from real brands

From hours saved every week to accurate matching that just works. Here's what clients have told us about working with Altosight.

Altosight offers a very good software, at a very competitive price. At the same time they offer an excellent customer service support.

DM
Dimitrios M.
Senior Trade Marketing Manager

Amazing service & exceptional customer care! Ease of use, fully customizable, great customer care, high accuracy.

CC
Chris C.
Managing Director

Try it on your own catalog

Start the free trial and watch your products tracked live, or book a quick call for a custom quote. No slides, no sales script, no commitment.

We'll reply within 24 hours.
Questions

Frequently asked questions

We search the countries you specify: direct websites, marketplaces, and any other channels you choose. Let Altosight discover sellers agnostically, or point us at the exact websites and marketplaces to monitor.

On marketplaces, we surface all the sellers on your listings, the same depth as our Amazon MAP monitoring. And because Altosight matches by product, using names, images, and attributes, a seller can't hide behind a reworded title or a missing barcode.

We capture each seller's storefront identity and business details where they're publicly available. In the countries you monitor, you see which of your monitored products each seller or website carries, at what prices.

When the business behind a storefront isn't public, you add it once and it's saved: three custom fields per seller for business name, assigned rep, CRM code, or anything your workflow needs. Every storefront maps to the real company across your team and systems.

You provide your authorized list once and keep it updated as your network changes. Every discovered seller is automatically classified as authorized, new, or unauthorized. Your team reviews exceptions, not spreadsheets.

No. Even without formal MAP, brands use reseller monitoring to understand real distribution, spot gray-market flows, and protect retail partners from unfair undercutting.

With a MAP policy, it becomes the front half of a complete compliance program: discovery feeds monitoring, monitoring feeds enforcement.

You get the evidence file: identity, listings, prices, first-seen date. Then you choose the play: enforcement outreach from your own domain, escalation through your distributor, or your legal team, armed with records instead of anecdotes.

Plans start from $49/month, with matching, MAP values, and free API access included. Pricing scales with catalog size, channels, and countries. Every quote is tailored to your scenario.

The easiest next step is a quick call or message. We'll send a custom quote within 24 hours.

Get Started

Complete the map. Then enforce it.

Start the free 14-day trial: up to 50 products, full feature access, no invoice unless you continue. Or book a 10-minute call.

  • 14-day free trial on 50 products, full feature access
  • Full account access before any invoice is sent
  • No credit card · no long-term contract
  • Human approval on every notice — nothing sends without you
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41 Agiou Dimitriou, Piraeus, 18546, Greece

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