Browser extension for Chrome

Is this seller
actually real?

Amazon has thousands of sellers — some are legitimate brands, many are generic resellers dropshipping from Alibaba. AuthCheck shows you the signals that separate real companies from faceless middlemen.

Verify a Product Chrome Extension Free. No account needed.
Amazon Product Verified Authentic
The North Face Women's Thermoball Jackpot Jacket
$249.00 by The North Face
REI Same product — $249.00
northface.com Same product — $249.00
DICK'S Same product — $244.99
Matched across 3 authorized retailers. Sold by The North Face direct store.
The Problem

Amazon has thousands of sellers. Most look identical.

Thousands
of Amazon sellers are generic resellers — no brand story, no history, no accountability. They can vanish after a sale with no recourse for you.
No signals
Amazon's listing pages give you reviews and price — but nothing about whether the seller is a real company that stands behind what it sells.
0
existing tools surface legitimacy signals that separate real brands from generic resellers. None. Until now.
What a real brand looks like:
Lifetime warranty — Osprey covers their packs for life. That's a real company betting on quality.
Sold at REI, Target, Dick's Sporting Goods — real retailers only stock brands they trust.
Generic reseller: no history, no warranty, no accountability. Just a listing and a prayer.
How It Works

Know who you're buying from.

01

Paste the product URL

Drop in any Amazon product page URL. AuthCheck extracts the seller name and product details, then checks them against what we know about the brand.

02

We surface legitimacy signals

We check whether the brand sells through trusted retailers (REI, Dick's, Target), offers a real warranty, has a documented history, and passes other markers of accountability.

03

You get a clear verdict

Real brand or generic reseller. You're armed with the signals that matter before you spend.

AuthCheck focuses on legitimacy signals — warranties, brick-and-mortar presence, brand history — not product comparison or review analysis.
Verdict Types

Two outcomes. Zero ambiguity.

Verified Brand

This seller is a real company with documented legitimacy signals — sold at trusted retailers, backed by a real warranty, with a brand story beyond Amazon.

REI ✓ Sells this brand
DICK'S Sporting Goods ✓ Sells this brand
REAL BRAND

Generic Reseller

No legitimacy signals found. No trusted retailer presence, no warranty, no brand story. Likely a dropshipper or generic middleman — proceed with caution.

REI ✗ Not a known seller
DICK'S ✗ Not a known seller
RESELLER DETECTED
Authorized Retailer Network

We match against the retailers you already trust.

AuthCheck currently cross-references against these authorized retailers, with more added every month.

REI Outdoor & Apparel
The North Face Direct Brand
DICK'S Sporting Goods Outdoor & Sports
Patagonia Direct Brand
REI Co-op Outdoor & Apparel
Backcountry Outdoor & Gear
Expanding to electronics, cosmetics, and home goods retailers in 2026
Why This Exists

Stop buying from sellers you know nothing about.

Every Amazon listing looks the same — polished photos, 4-star reviews, "prime" shipping. But behind that listing could be a real company with a 30-year warranty and a customer service line — or a faceless reseller who imported the cheapest Alibaba version, will never be seen again, and leaves you with a product nobody will honour.

AuthCheck was built to surface the difference. Paste the URL. Get the signals. Decide with confidence.

\n Free to start
5 free verifications/month
Chrome extension — instant on any Amazon page
No account required for basic use
Unlimited verifications for $4.99/month
Get Chrome Extension — Free
No credit card required. Launching 2026.