Online Marketplaces

Stop fraud rings before they ever reach your buyers.

Fake seller registrations, fraudulent listings, and fake-review farms attack the one thing your marketplace cannot recover: buyer trust. Kairal scores every signup and listing at the edge, so the fraud never lists, never reviews, and never collects.

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The problem in marketplaces

Trust takes years to build, hours to lose.

11K+

Fake-listing takedowns at Etsy in one quarter

Etsy alone reported removing more than 11,000 fraudulent listings in a single quarter of 2024 — listings that reached buyers before takedown. The reputational cost lands on the marketplace, not the seller.

Etsy Transparency Report 2024

Days

From signup to first scam transaction

Coordinated fraud rings register hundreds of seller accounts in bulk, list at low margins to build initial trust signals, then run scams within days. By the time reports come in, the operator is on the next cohort of accounts.

Industry observation · C2C fraud rings

+70%

YoY growth in account takeover attacks

Once buyer-side ATO lands, stored payment methods and shipping addresses follow — and the dispute lands with the marketplace, not the issuer.

Thales Bad Bot Report 2026

How Kairal protects marketplaces

Stop the fraud upstream of every transaction.

01

Seller registration scoring at signup

Every new seller is scored in real time — device fingerprint, email pattern, registration velocity, behavioural signals during form fill. Bulk fraud-ring registrations are mitigated before they enter your seller database.

02

Listing-creation behavioural scoring

Bot-created listings exhibit timing, copy-paste, and image-upload signatures distinct from real sellers. Suspicious listings are flagged before they appear in search and surface to buyers.

03

Fake-review and rating-ring detection

Coordinated review rings cluster by device, network, and timing. Kairal correlates these signals to detect rating manipulation before it inflates a fraudulent seller into a buyer-visible top result.

04

Buyer-side ATO and credential stuffing

Login endpoints are scored for the behavioural signatures of automated credential testing. ATO waves are mitigated silently before they reach valid buyer accounts with stored payment.

Coverage

Threats specific to marketplaces.

Fake seller rings

Bulk seller registrations from coordinated networks — used for scam listings, fake reviews, and rating manipulation that erodes buyer trust.

Buyer-side ATO

Credential-stuffed buyer accounts drained for stored payment methods, addresses, and loyalty balance — with disputes landing on the marketplace.

Promo & referral farms

Bot account clusters claim welcome bonuses, referral credits, and first-purchase discounts before genuine acquisition spend reaches real buyers.

Listing scraping

Competitor platforms and arbitrage operators continuously scrape seller catalogue and pricing — inflating infrastructure cost and feeding cross-marketplace undercutting.

Impact

What changes after Kairal.

< 25ms

Decision latency

Every registration, login, and listing-page request scored at the edge. Site performance is unaffected even at peak traffic.

Edge or origin deployment
Invisible

Zero friction for users

Silent challenges replace CAPTCHAs across registration and login. Real buyers and sellers never see a puzzle.

No CAPTCHAs, no interruption
Free

Pilot with your real traffic

Run Kairal across actual registration, login, and listing endpoints and review every mitigated session in the dashboard.

Onboarding design partners now
Online Marketplaces

Stop the fraud upstream of every buyer interaction.

Go live in under 2 hours. Free pilot with your real registration, listing, and login traffic — every mitigated session logged with a full signal breakdown your team can audit.

Get your free attack report